1
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Cheng Z, Xu H, Hu Z, Zhu M, Houk KN, Xue XS, Jiao N. Carbene-Assisted Arene Ring-Opening. J Am Chem Soc 2024. [PMID: 38691630 DOI: 10.1021/jacs.4c03634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Despite the significant achievements in dearomatization and C-H functionalization of arenes, the arene ring-opening remains a largely unmet challenge and is underdeveloped due to the high bond dissociation energy and strong resonance stabilization energy inherent in aromatic compounds. Herein, we demonstrate a novel carbene assisted strategy for arene ring-opening. The understanding of the mechanism by our DFT calculations will stimulate wide application of bulk arene chemicals for the synthesis of value-added polyconjugated chain molecules. Various aryl azide derivatives now can be directly converted into valuable polyconjugated enynes, avoiding traditional synthesis including multistep unsaturated precursors, poor selectivity control, and subsequent transition-metal catalyzed cross-coupling reactions. The simple conditions required were demonstrated in the late-stage modification of complex molecules and fused ring compounds. This chemistry expands the horizons of carbene chemistry and provides a novel pathway for arene ring-opening.
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Affiliation(s)
- Zengrui Cheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 100191 Beijing, China
| | - Haoran Xu
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Zhibin Hu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 100191 Beijing, China
| | - Minghui Zhu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 100191 Beijing, China
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California─Los Angeles, Los Angeles, California 90095-1569, United States
| | - Xiao-Song Xue
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 100191 Beijing, China
- State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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2
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Guo SM, Xu P, Studer A. Meta-Selective Copper-Catalyzed C-H Arylation of Pyridines and Isoquinolines through Dearomatized Intermediates. Angew Chem Int Ed Engl 2024:e202405385. [PMID: 38634294 DOI: 10.1002/anie.202405385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 04/19/2024]
Abstract
C(sp2)-H functionalization offers an efficient strategy for the synthesis of various elaborated N-containing heteroarenes. Along these lines, oxazino pyridines that can be readily prepared from pyridines, have been introduced as powerful substrates in radical- and ionic-mediated meta-C-H functionalization. However, the regioselective meta-C-H arylation of pyridines remains a great challenge. Herein, a copper-catalyzed meta-selective C-H arylation of pyridines and isoquinolines through bench-stable dearomatized intermediates is reported. Electrophilic aryl-Cu(III) species, generated from readily accessible aryl I(III) reagents, enable the efficient meta-arylation of a broad range of pyridines and isoquinolines. The method also allows the meta-selective alkenylation of these heteroarenes using the corresponding alkenyl I(III)-reagents. Late-stage arylation of drug-derived pyridines and larger-scale experiments demonstrate the potential of this synthetic methodology.
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Affiliation(s)
- Shu-Min Guo
- Organisch-Chemisches Institut, Universität Münster, 48149, Münster, Germany
| | - Pengwei Xu
- Organisch-Chemisches Institut, Universität Münster, 48149, Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Universität Münster, 48149, Münster, Germany
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3
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Jeong D, Lee Y, Lee Y, Kim K, Cho J. Synthesis, Characterization, and Reactivity of a Highly Oxidative Mononuclear Manganese(IV)-Bis(Fluoro) Complex. J Am Chem Soc 2024; 146:4172-4177. [PMID: 38311844 DOI: 10.1021/jacs.3c13324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Recently, transition-metal terminal nonoxo complexes have shown a remarkable ability to activate and functionalize C-H bonds via proton-coupled electron transfer (PCET). Here we report the first example of a mononuclear manganese(IV) bis(fluoro) complex bearing a tetradentate pyridinophane ligand, [MnIV(TBDAP)(F)2]2+ (3), with an X-ray single crystal structure and physicochemical characterization. The manganese(IV) bis(fluoro) complex has a very high reduction potential of 1.61 V vs SCE, thereby enabling the four-electron oxidation of mesitylene to 3,5-dimethylbenzaldehyde. Kinetic studies, including the kinetic isotope effect and employment of other toluene derivatives, reveal the electron transfer (ET)-driven PCET in the C-H bond activation of mesitylene by 3. This novel metal halide intermediate would be prominently valuable for expanding transition-metal halide chemistry.
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Affiliation(s)
- Donghyun Jeong
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Yujeong Lee
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Yuri Lee
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Kyungmin Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jaeheung Cho
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Graduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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4
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Lv Q, Hu Z, Zhang Y, Zhang Z, Lei H. Advancing Meta-Selective C-H Amination through Non-Covalent Interactions. J Am Chem Soc 2024; 146:1735-1741. [PMID: 38095630 DOI: 10.1021/jacs.3c09904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Regioselective C-H amination of simple arenes is highly desirable, but accessing meta-sites of ubiquitous arenes has proven challenging due to the lack of both electronic and spatial preference. This study demonstrates the successful use of various privileged nitrogen-containing functionalities found in pharmaceutical compounds to direct meta-C-H amination of arenes, overcoming the long-standing requirement for a redundant directing group. The remarkable advancements in functional group accommodation for precise regiochemical control were achieved through the discovery of an unprecedented organo-initiator and the strategic utilization of non-covalent interactions. This protocol has been successfully applied in the concise synthesis and late-stage derivatization of drug molecules, which would have been otherwise challenging to achieve.
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Affiliation(s)
- Qianqian Lv
- College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Zongxing Hu
- College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Yousong Zhang
- College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Zhihan Zhang
- College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
- Wuhan Institute of Photochemistry and Technology, Wuhan, Hubei 430083, P. R. China
| | - Honghui Lei
- College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
- Wuhan Institute of Photochemistry and Technology, Wuhan, Hubei 430083, P. R. China
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5
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Sukowski V, van Borselen M, Mathew S, de Bruin B, Fernández-Ibáñez MÁ. meta-C-H Arylation of Aniline Derivatives via Palladium/ S,O-Ligand/Norbornene Cooperative Catalysis. Angew Chem Int Ed Engl 2023:e202317741. [PMID: 38079090 DOI: 10.1002/anie.202317741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Indexed: 12/23/2023]
Abstract
Aromatic amines are ubiquitous moieties in organic molecules and their direct functionalization is of great interest in many research areas due to their prevalence in pharmaceuticals and organic electronics. While several synthetic tools exist for the ortho- and para-functionalization of anilines, the functionalization of the less reactive meta-position is not easy to achieve with current methods. To date, the meta-C-H arylation of aniline derivatives has been restricted to either the use of directing groups & templates, or their transformation into anilides & quaternary anilinium salts. Herein, we report the first general and efficient meta-C-H-arylation of non-directed aniline derivatives via cooperative catalysis with a palladium-S,O-ligand-norbornene system. The reaction proceeds under mild conditions with a wide range of aniline derivatives and aryl iodides, while being operationally simple and scalable. Our preliminary mechanistic investigation-including the isolation of several palladium complexes and deuterium experiments-reveal useful insights into the substituent-effects of both the aniline-substrate and the norbornene-mediator during the meta-C-H activation step.
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Affiliation(s)
- Verena Sukowski
- Van't Hoff Institute for Molecular Sciences, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Manuela van Borselen
- Van't Hoff Institute for Molecular Sciences, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Simon Mathew
- Van't Hoff Institute for Molecular Sciences, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Bas de Bruin
- Van't Hoff Institute for Molecular Sciences, Science Park 904, 1098 XH, Amsterdam, The Netherlands
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6
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Huang G, Fang Y, Wright JS, Ni SF, Li MD, Dang L. The Essence in Selectivity of Copper-Mediated Intermolecular Nucleophilic Substitution of a meta C-H Bond in 2-Methyl- N-methoxyaniline: A Theoretical Study. J Phys Chem A 2023; 127:9473-9482. [PMID: 37824456 DOI: 10.1021/acs.jpca.3c05223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
The detailed mechanism for NHC-Cu(I)-catalyzed intermolecular nucleophilic substitution of the C-H bonds at aniline (2-methyl-N-methoxyaniline) was studied via DFT methods to reveal the essence of the selectivity. Calculations revealed that the meta C-H functionalization proceeds via two nucleophilic attacks on the aromatic ring rather than a one-step meta C-H substitution to give the experimentally observed major product. The reaction is initiated by activation of the substrate via oxidative addition with an NHC-Cu(I) catalyst, through which an umpolung occurs at the ring. From the activated intermediate, methoxyl group transfer to benzyl forms a resting state, while a nucleophile can attack the ortho position of benzyl to form a more stable intermediate. The nucleophile group can then transfer to the meta position by a 1,2-Wagner-Meerwein rearrangement to form the final product through a proton shuttle. In contrast, other transfer processes affording ortho- or para-substituted products encounter higher activation barriers. This work investigates the relationship of product selectivity with the umpolung of the aromatic ring, as well as the priority of a nucleophilic attack at the ortho position of the aromatic, 1,2-Wagner-Meerwein rearrangement from the ortho-substituted intermediate, and proton shuttle from the meta-substituted intermediate.
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Affiliation(s)
- Guanglong Huang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou , Guangdong 515063, P. R. China
| | - Yuqi Fang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou , Guangdong 515063, P. R. China
| | - James S Wright
- Department of Chemistry, University of Surrey, Guildford, Surrey GU2 7XH, U.K
| | - Shao-Fei Ni
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou , Guangdong 515063, P. R. China
| | - Ming-De Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou , Guangdong 515063, P. R. China
| | - Li Dang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou , Guangdong 515063, P. R. China
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7
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Corral Suarez C, Colomer I. Trifluoromethylarylation of alkenes using anilines. Chem Sci 2023; 14:12083-12090. [PMID: 37969609 PMCID: PMC10631225 DOI: 10.1039/d3sc03868h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/19/2023] [Indexed: 11/17/2023] Open
Abstract
Nitrogen containing compounds, such as anilines, are some of the most widespread and useful chemical species, although their high and unselective reactivity has prevented their incorporation into many interesting transformations, such as the functionalization of alkenes. Herein we report a method that allows the trifluoromethylarylation of alkenes using anilines, for the first time, with no need for additives, transition metals, photocatalysts or an excess of reagents. An in-depth mechanistic study reveals the key role of hexafluoroisopropanol (HFIP) as a unique solvent, establishing a hydrogen bonding network with aniline and trifluoromethyl reagent, that is responsible for the altered reactivity and exquisite selectivity. This work uncovers a new mode of reactivity that involves the use of abundant anilines as a non-prefunctionalized aromatic source and the simultaneous activation of trifluoromethyl hypervalent iodine reagent.
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Affiliation(s)
- Carlos Corral Suarez
- Instituto de Química Orgánica General (IQOG), CSIC Juan de la Cierva 3 28006 Madrid Spain
- IMDEA Nanociencia, Faraday 9 28049 Madrid Spain
| | - Ignacio Colomer
- Instituto de Química Orgánica General (IQOG), CSIC Juan de la Cierva 3 28006 Madrid Spain
- IMDEA Nanociencia, Faraday 9 28049 Madrid Spain
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8
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Kuninobu Y. Non-Covalent Interaction-Controlled Site-Selective C-H Transformations. CHEM REC 2023; 23:e202300149. [PMID: 37236150 DOI: 10.1002/tcr.202300149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/18/2023] [Indexed: 05/28/2023]
Abstract
Site-selective C-H transformations are important to obtain desired compounds as single products in a highly efficient manner. However, it is generally difficult to achieve such transformations because organic substrates contain many C-H bonds with similar reactivities. Therefore, the development of practical and efficient methods for controlling site selectivity is highly desirable. The most frequently used strategy is "directing group method". Although this method is highly effective and promotes site-selective reactions, it has several limitations. Our group recently reported other methods to achieve site-selective C-H transformations using non-covalent interactions between a substrate and a reagent or a catalyst and a substrate (non-covalent method). In this personal account, the background of site-selective C-H transformations, our reaction design to achieve site-selective C-H transformations, and recently reported reactions are explained.
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Affiliation(s)
- Yoichiro Kuninobu
- Institute for Materials Chemistry and Engineering, Interdisciplinary Engineering Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka, 816-8580, Japan
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9
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Kaplanai E, Tonis E, Drymona M, Zagranyarski Y, Tzeli D, Vougioukalakis GC. Microwave-Assisted, Copper-Catalyzed Domino O-H/C-H Arylation Reaction toward the Synthesis of Oxygen-Doped Polyaromatic Molecules. J Org Chem 2023; 88:11552-11561. [PMID: 37494595 DOI: 10.1021/acs.joc.3c00830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Benzoxanthenes and their analogues are a very important class of compounds mainly due to their wide range of biological and technological applications. The development of a new methodology for their synthesis, involving an Ullmann-type coupling followed by an intramolecular C-H arylation, catalyzed by copper in a domino fashion, is reported. A variety of para-substituted phenols are amenable to this methodology, affording the desired products in moderate to good yields. Our protocol is expedient and practical and is carried out under microwave irradiation in only 3 min under air. A plausible catalytic cycle is proposed based on experimental mechanistic investigations and density functional theory (DFT) calculations.
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Affiliation(s)
- Entzy Kaplanai
- Department of Chemistry, National and Kapodistrian University of Athens Panepistimiopolis, 15771 Athens, Greece
| | - Efstathios Tonis
- Department of Chemistry, National and Kapodistrian University of Athens Panepistimiopolis, 15771 Athens, Greece
| | - Maria Drymona
- Department of Chemistry, National and Kapodistrian University of Athens Panepistimiopolis, 15771 Athens, Greece
| | - Yulian Zagranyarski
- Department of Chemistry and Pharmacy, "St. Kliment Ohridski" University of Sofia, Bul. J. Baurchier 1, 1164 Sofia, Bulgaria
| | - Demeter Tzeli
- Department of Chemistry, National and Kapodistrian University of Athens Panepistimiopolis, 15771 Athens, Greece
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, Vassileos Constantinou Avenue 48, 11635 Athens, Greece
| | - Georgios C Vougioukalakis
- Department of Chemistry, National and Kapodistrian University of Athens Panepistimiopolis, 15771 Athens, Greece
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10
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Taneja N, Sharma P, Yadav N, Musib D, Hazra CK. Nondirected, Site-Selective Arylation of Quinone Imine Ketals Derived from Arylamines: One-Pot Access to meta-Substituted Anilines. Org Lett 2023; 25:6029-6034. [PMID: 37539966 DOI: 10.1021/acs.orglett.3c02181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Herein, we develop a metal-free, nondirected, site-selective, one-pot approach to meta-arylation of arylamines. This Brønsted acid-catalyzed, direct C-C bond formation offers a broad substrate scope and scalability and creates the ideal conditions for overriding the conventional site-selectivity to furnish meta-substituted anilines. Additionally, the protocol applies to the meta-allylation of anilines and has been extended to afford late-stage functionalization and synthesis of medicinally privileged arylated diamines and densely functionalized anilines. The control experiments and density functional theory studies provide evidence for the proposed mechanism and selectivity.
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Affiliation(s)
- Neha Taneja
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Pragya Sharma
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Naveen Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Dulal Musib
- Department of Chemistry, National Institute of Technology Manipur, Langol, Imphal West, Manipur 795004, India
| | - Chinmoy Kumar Hazra
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
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11
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Sun Z, Dai M, Ding C, Chen S, Chen LA. Regiodivergent and Stereoselective Synthesis of Highly Substituted 1,3-Dienes via Arylative Acyloxy Migration of Propargyl Esters. J Am Chem Soc 2023; 145:18115-18125. [PMID: 37525426 DOI: 10.1021/jacs.3c06253] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
We report the first catalyst-controlled regiodivergent method that enables the synthesis of structurally diverse 1,2,3,4-tetrasubstituted conjugated dienes with excellent regio- and stereochemical outcomes from the same set of readily available propargyl esters and diaryliodonium salts. In this diene chemistry, the in situ generated, highly electrophilic aryl-CuIII complex serves not only as a π-Lewis acid catalyst for alkyne activation/acyloxy migration but also as an aryl electrophile equivalent. The competitive arylative 1,2- and 1,3-acyloxy migration patterns are exquisitely dictated by Cu and Au/Cu relay catalyses, respectively, providing a modular and attractive approach to traditionally inaccessible tetrasubstituted 1,3-dienes in a regiodivergent manner. Finally, the synthetic utility of this method is demonstrated by further synthetic derivatization of 1,3-dienes into an array of useful compounds.
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Affiliation(s)
- Zhimin Sun
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Mengfu Dai
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Chencheng Ding
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Shiqin Chen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Liang-An Chen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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12
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Yan SB, Wang R, Li ZG, Li AN, Wang C, Duan WL. Copper-catalyzed asymmetric C(sp 2)-H arylation for the synthesis of P- and axially chiral phosphorus compounds. Nat Commun 2023; 14:2264. [PMID: 37081007 PMCID: PMC10119316 DOI: 10.1038/s41467-023-37987-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 04/04/2023] [Indexed: 04/22/2023] Open
Abstract
Transition metal-catalyzed C-H bond functionalization is an important method in organic synthesis, but the development of methods that are lower cost and have a less environmental impact is desirable. Here, a Cu-catalyzed asymmetric C(sp2)-H arylation is reported. With diaryliodonium salts as arylating reagents, a range of ortho-arylated P-chiral phosphonic diamides were obtained in moderate to excellent yields with high enantioselectivities (up to 92% ee). Meanwhile, enantioselective C-3 arylation of diarylphosphine oxide indoles was also realized under similar conditions to construct axial chirality.
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Affiliation(s)
- Shao-Bai Yan
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 225002, Yangzhou, China
| | - Rui Wang
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 225002, Yangzhou, China
| | - Zha-Gen Li
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 225002, Yangzhou, China
| | - An-Na Li
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 225002, Yangzhou, China
| | - Chuanyong Wang
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 225002, Yangzhou, China
| | - Wei-Liang Duan
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, 225002, Yangzhou, China.
- College of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, 010021, Hohhot, China.
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 Xi Changan Street, 710119, Xi'an, China.
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13
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Saikia RA, Talukdar K, Pathak D, Sarma B, Thakur AJ. Utilization of Aryl(TMP)iodonium Salts for Copper-Catalyzed N-Arylation of Isatoic Anhydrides: An Avenue to Fenamic Acid Derivatives and N,N'-Diarylindazol-3-ones. J Org Chem 2023; 88:3567-3581. [PMID: 36827541 DOI: 10.1021/acs.joc.2c02762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Herein, we report a general method for copper-catalyzed N-arylation of isatoic anhydrides with unsymmetrical iodonium salts at room temperature. The developed catalytic protocol is mild and operationally simple, and aryl(TMP)iodonium trifluoroacetate is employed as the arylating partner. The methodology offers the broad applicability of both structurally and electronically diverse aryl groups from aryl(TMP)iodonium salts to access N-arylated isatoic anhydrides in moderate to excellent yields (53-92%). Moreover, the substituted isatoic anhydrides are equally compatible with the protocol too. To demonstrate the synthetic utilities of the N-arylation process, we also report an alternative approach for biologically relevant fenamic acid derivatives and N,N'-diarylindazol-3-ones in a one-pot step economical system. In addition, the scale-up synthesis of flufenamic acid is also illustrated.
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Affiliation(s)
- Raktim Abha Saikia
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Khanindra Talukdar
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Debabrat Pathak
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Bipul Sarma
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Ashim Jyoti Thakur
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
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14
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Senior A, Ruffell K, Ball LT. meta-Selective C-H arylation of phenols via regiodiversion of electrophilic aromatic substitution. Nat Chem 2023; 15:386-394. [PMID: 36509853 DOI: 10.1038/s41557-022-01101-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/27/2022] [Indexed: 12/14/2022]
Abstract
Electrophilic aromatic substitution is among the most widely used mechanistic manifolds in organic chemistry. Access to certain substitution patterns is, however, precluded by intrinsic and immutable substituent effects that ultimately restrict the diversity of the benzenoid chemical space. Here we demonstrate that the established regioselectivity of electrophilic aromatic substitution can be overcome simply by diverting the key σ-complex intermediate towards otherwise inaccessible substitution products. This 'regiodiversion' strategy is realized through the development of a general and concise method for the meta-selective C-H arylation of sterically congested phenols. Consisting of a Bi(V)-mediated electrophilic arylation and a subsequent aryl migration/rearomatization, our process is orthogonal to conventional C-H activation and cross-coupling approaches, and does not require prefunctionalization of the substrate. Mechanistically informed applications in synthesis showcase its utility as a versatile and enabling route to highly functionalized, contiguously substituted aromatic building blocks that defy synthesis via existing methods.
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Affiliation(s)
- Aaron Senior
- School of Chemistry, University of Nottingham, Nottingham, UK
| | - Katie Ruffell
- School of Chemistry, University of Nottingham, Nottingham, UK
| | - Liam T Ball
- School of Chemistry, University of Nottingham, Nottingham, UK.
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15
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Paul B, Das S, Chatterjee I. Copper-Catalyzed Regioselective Remote C-H Bond Chalcogenation of Aromatic Amine Derivatives without Using Any Large Template. Org Lett 2023; 25:653-658. [PMID: 36695652 DOI: 10.1021/acs.orglett.2c04261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A mild and convenient strategy has been developed for the para-selective chalcogenation of anilide scaffolds via C-H bond functionalization. This methodology employs one of the most earth-abundant and inexpensive Cu(II) catalysts and a commercially available simple aryl chalcogen source without any complex directing template, exogenous ligand, acid/base, oxidant, or other additives. The key feature of this methodology is an impressive regioselectivity along with a wide range of functional group tolerance with good to excellent yields under aerobic conditions.
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Affiliation(s)
- Biprajit Paul
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab 140001, India
| | - Surajit Das
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab 140001, India
| | - Indranil Chatterjee
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab 140001, India
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16
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Choi C, Wang X, Kwon S, Hart JL, Rooney CL, Harmon NJ, Sam QP, Cha JJ, Goddard WA, Elimelech M, Wang H. Efficient electrocatalytic valorization of chlorinated organic water pollutant to ethylene. NATURE NANOTECHNOLOGY 2023; 18:160-167. [PMID: 36536043 DOI: 10.1038/s41565-022-01277-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 10/17/2022] [Indexed: 06/17/2023]
Abstract
Electrochemistry can provide an efficient and sustainable way to treat environmental waters polluted by chlorinated organic compounds. However, the electrochemical valorization of 1,2-dichloroethane (DCA) is currently challenged by the lack of a catalyst that can selectively convert DCA in aqueous solutions into ethylene. Here we report a catalyst comprising cobalt phthalocyanine molecules assembled on multiwalled carbon nanotubes that can electrochemically decompose aqueous DCA with high current and energy efficiencies. Ethylene is produced at high rates with unprecedented ~100% Faradaic efficiency across wide electrode potential and reactant concentration ranges. Kinetic studies and density functional theory calculations reveal that the rate-determining step is the first C-Cl bond breaking, which does not involve protons-a key mechanistic feature that enables cobalt phthalocyanine/carbon nanotube to efficiently catalyse DCA dechlorination and suppress the hydrogen evolution reaction. The nanotubular structure of the catalyst enables us to shape it into a flow-through electrified membrane, which we have used to demonstrate >95% DCA removal from simulated water samples with environmentally relevant DCA and electrolyte concentrations.
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Affiliation(s)
- Chungseok Choi
- Department of Chemistry, Yale University, New Haven, CT, USA
- Energy Sciences Institute, Yale University, West Haven, CT, USA
| | - Xiaoxiong Wang
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA
| | - Soonho Kwon
- Materials and Process Simulation Center (MSC), California Institute of Technology, Pasadena, CA, USA
| | - James L Hart
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA
| | - Conor L Rooney
- Department of Chemistry, Yale University, New Haven, CT, USA
- Energy Sciences Institute, Yale University, West Haven, CT, USA
| | - Nia J Harmon
- Department of Chemistry, Yale University, New Haven, CT, USA
- Energy Sciences Institute, Yale University, West Haven, CT, USA
| | - Quynh P Sam
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA
| | - Judy J Cha
- Energy Sciences Institute, Yale University, West Haven, CT, USA
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA
- Department of Mechanical Engineering and Materials Science, Yale University, West Haven, CT, USA
| | - William A Goddard
- Materials and Process Simulation Center (MSC), California Institute of Technology, Pasadena, CA, USA.
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA.
| | - Hailiang Wang
- Department of Chemistry, Yale University, New Haven, CT, USA.
- Energy Sciences Institute, Yale University, West Haven, CT, USA.
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17
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Kuczmera TJ, Dietz A, Boelke A, Nachtsheim BJ. Synthesis and reactivity of azole-based iodazinium salts. Beilstein J Org Chem 2023; 19:317-324. [PMID: 36960303 PMCID: PMC10028571 DOI: 10.3762/bjoc.19.27] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 03/06/2023] [Indexed: 03/18/2023] Open
Abstract
A systematic investigation of imidazo- and pyrazoloiodazinium salts is presented. Besides a robust synthetic protocol that allowed us to synthesize these novel cyclic iodonium salts in their mono- and dicationic forms, we gained in-depth structural information through single-crystal analysis and demonstrated the ring opening of the heterocycle-bridged iodonium species. For an exclusive set of dicationic imidazoiodaziniums, we show highly delicate post-oxidation functionalizations retaining the hypervalent iodine center.
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Affiliation(s)
- Thomas J Kuczmera
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Annalena Dietz
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Andreas Boelke
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Boris J Nachtsheim
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
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18
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Pinilla C, Salamanca V, Lledós A, Albéniz AC. Palladium-Catalyzed Ortho C-H Arylation of Unprotected Anilines: Chemo- and Regioselectivity Enabled by the Cooperating Ligand [2,2'-Bipyridin]-6(1 H)-one. ACS Catal 2022; 12:14527-14532. [PMID: 36504914 PMCID: PMC9724229 DOI: 10.1021/acscatal.2c05206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/08/2022] [Indexed: 11/13/2022]
Abstract
Metal-catalyzed C-H functionalizations on the aryl ring of anilines usually need cumbersome N-protection-deprotection strategies to ensure chemoselectivity. We describe here the Pd-catalyzed direct C-H arylation of unprotected anilines with no competition of the N-arylation product. The ligand [2,2'-bipyridin]-6(1H)-one drives the chemoselectivity by kinetic differentiation in the product-forming step, while playing a cooperating role in the C-H cleavage step. The latter is favored in an anionic intermediate where the NH moiety is deprotonated, driving the regioselectivity of the reaction toward ortho substitution.
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Affiliation(s)
- Cintya Pinilla
- IU
CINQUIMA/Química Inorgánica, Universidad de Valladolid, 47071 Valladolid, Spain
| | - Vanesa Salamanca
- IU
CINQUIMA/Química Inorgánica, Universidad de Valladolid, 47071 Valladolid, Spain
| | - Agustí Lledós
- Departament
de Química, Universitat Autònoma
de Barcelona, 08193 Barcelona, Spain,Email for A.L.:
| | - Ana C. Albéniz
- IU
CINQUIMA/Química Inorgánica, Universidad de Valladolid, 47071 Valladolid, Spain,Email
for A.C.A.:
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19
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Lichte D, Pirkl N, Heinrich G, Dutta S, Goebel JF, Koley D, Gooßen LJ. Palladium-Catalyzed para-C-H Arylation of Anilines with Aromatic Halides. Angew Chem Int Ed Engl 2022; 61:e202210009. [PMID: 36112053 PMCID: PMC9828783 DOI: 10.1002/anie.202210009] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Indexed: 01/12/2023]
Abstract
Controlling regioselectivity in C-H functionalizations is a key challenge in chemical method development. In arenes, functionalizations are most difficult to direct towards the C-H group furthest away from a substituent, in its para position. We herein demonstrate how the para-C-H arylation of anilines with non-activated aryl halides, elusive to date, is achieved by a base-assisted "metalla-tautomerism" approach. A proton is abstracted from the aniline substrate and replaced by an arylpalladium species, generated from the aryl halide coupling partner. In this step, the palladium is directed away from the N- to the tautomeric para-C-H position by a large phosphine ligand combined with a triphenylmethyl shielding group. The triphenylmethyl group is easily installed and removed, and can be recycled.
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Affiliation(s)
- Dominik Lichte
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Nico Pirkl
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Gregor Heinrich
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Sayan Dutta
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER)Kolkata, Mohanpur 741 246India
| | - Jonas F. Goebel
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Debasis Koley
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER)Kolkata, Mohanpur 741 246India
| | - Lukas J. Gooßen
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
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20
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Wang H, Li H, Chen X, Zhou C, Li S, Yang YF, Li G. Asymmetric Remote meta-C–H Activation Controlled by a Chiral Ligand. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hang Wang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huiling Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Xiahe Chen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Chunlin Zhou
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Shangda Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Yun-Fang Yang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Gang Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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21
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Chang W, Wang Y, Chen Y, Ma J, Liang Y. Control of meta-selectivity in the Ir-catalyzed aromatic C-H borylation directed by hydrogen bond interaction: A combined computational and experimental study. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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22
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Chen LM, Zhou C, Li J, Li J, Guo XQ, Kang TR. Copper-catalyzed reactions of α,β-unsaturated N-tosylhydrazones with diaryliodonium salts to construct N-arylpyrazoles and diaryl sulfones. Org Biomol Chem 2022; 20:7011-7016. [PMID: 36000782 DOI: 10.1039/d2ob01338j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, an economical copper-catalyzed reaction of α,β-unsaturated N-tosylhydrazones with diaryliodonium salts to construct both N-arylpyrazoles and diaryl sulfones has been developed. Both the p-toluenesulfonyl anion and the 3-arylpyrazole intermediates were formed in situ from N-tosylhydrazones. Subsequently, the former reacted rapidly with diaryliodonium salts to give diaryl sulfones and aryl iodide intermediates, and the latter reacted with aryl iodide to give N-arylpyrazoles under copper-catalyzed conditions. Using unsymmetrical mesityl phenyliodonium salts as substrates, mesityl p-toluenesulfide was obtained as the major product. This reaction took full advantage of the "waste" part of substrates to form an extra diaryl sulfone.
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Affiliation(s)
- Lian-Mei Chen
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Chuang Zhou
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Jing Li
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Jun Li
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Xiao-Qiang Guo
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Tai-Ran Kang
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
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23
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Gou X, Li Y, Shi W, Luan Y, Ding Y, An Y, Huang Y, Zhang B, Liu X, Liang Y. Ruthenium‐Catalyzed Stereo‐ and Site‐Selective
ortho‐
and
meta
‐C−H Glycosylation and Mechanistic Studies. Angew Chem Int Ed Engl 2022; 61:e202205656. [DOI: 10.1002/anie.202205656] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Xue‐Ya Gou
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yuke Li
- Department of Chemistry and Centre for Scientific Modeling and Computation Chinese University of Hong Kong Shatin Hong Kong China
| | - Wei‐Yu Shi
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yu‐Yong Luan
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Ya‐Nan Ding
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yang An
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yan‐Chong Huang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Bo‐Sheng Zhang
- College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730000 China
| | - Xue‐Yuan Liu
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yong‐Min Liang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
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24
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Saikia RA, Dutta A, Sarma B, Thakur AJ. Metal-Free Regioselective N 2-Arylation of 1 H-Tetrazoles with Diaryliodonium Salts. J Org Chem 2022; 87:9782-9796. [PMID: 35849501 DOI: 10.1021/acs.joc.2c00848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We describe a simple, metal-free regioselective N2-arylation strategy for 5-substituted-1H-tetrazoles with diaryliodonium salts to access 2-aryl-5-substituted-tetrazoles. Diaryliodonium salts with a wide range of both electron-rich and previously challenged electron-deficient aryl groups are applicable in this method. Diversely functionalized tetrazoles are tolerable also. We have devised a one-pot system to synthesize 2,5-diaryl-tetrazoles directly from nitriles. The synthetic utility of this method is furthered extended to late-stage arylation of two biologically active molecules.
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Affiliation(s)
- Raktim Abha Saikia
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur 784028, India
| | - Anurag Dutta
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur 784028, India
| | - Bipul Sarma
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur 784028, India
| | - Ashim Jyoti Thakur
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur 784028, India
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25
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Chen Y, Gu Y, Meng H, Shao Q, Xu Z, Bao W, Gu Y, Xue X, Zhao Y. Metal‐Free C−H Functionalization via Diaryliodonium Salts with a Chemically Robust Dummy Ligand. Angew Chem Int Ed Engl 2022; 61:e202201240. [DOI: 10.1002/anie.202201240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Yixuan Chen
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Yuefei Gu
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Huan Meng
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Qianzhen Shao
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Zhenchuang Xu
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Wenjing Bao
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Yucheng Gu
- Syngenta Jealott's Hill International Research Centre Bracknell, Berkshire RG42 6EY UK
| | - Xiao‐Song Xue
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Yanchuan Zhao
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
- Key Laboratory of Energy Regulation Materials Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
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26
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Gou X, Li Y, Shi W, Luan Y, Ding Y, An Y, Huang Y, Zhang B, Liu X, Liang Y. Ruthenium‐Catalyzed Stereo‐ and Site‐Selective
ortho‐
and
meta
‐C−H Glycosylation and Mechanistic Studies. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xue‐Ya Gou
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yuke Li
- Department of Chemistry and Centre for Scientific Modeling and Computation Chinese University of Hong Kong Shatin Hong Kong China
| | - Wei‐Yu Shi
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yu‐Yong Luan
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Ya‐Nan Ding
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yang An
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yan‐Chong Huang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Bo‐Sheng Zhang
- College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730000 China
| | - Xue‐Yuan Liu
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yong‐Min Liang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
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27
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Shetgaonkar SE, Raju A, China H, Takenaga N, Dohi T, Singh FV. Non-Palladium-Catalyzed Oxidative Coupling Reactions Using Hypervalent Iodine Reagents. Front Chem 2022; 10:909250. [PMID: 35844643 PMCID: PMC9283985 DOI: 10.3389/fchem.2022.909250] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/20/2022] [Indexed: 01/25/2023] Open
Abstract
Transition metal-catalyzed direct oxidative coupling reactions via C–H bond activation have emerged as a straightforward strategy for the construction of complex molecules in organic synthesis. The direct transformation of C–H bonds into carbon–carbon and carbon–heteroatom bonds renders the requirement of prefunctionalization of starting materials and, therefore, represents a more efficient alternative to the traditional cross-coupling reactions. The key to the unprecedented progress made in this area has been the identification of an appropriate oxidant that facilitates oxidation and provides heteroatom ligands at the metal center. In this context, hypervalent iodine compounds have evolved as mainstream reagents particularly because of their excellent oxidizing nature, high electrophilicity, and versatile reactivity. They are environmentally benign reagents, stable, non-toxic, and relatively cheaper than inorganic oxidants. For many years, palladium catalysis has dominated these oxidative coupling reactions, but eventually, other transition metal catalysts such as gold, copper, platinum, iron, etc. were found to be promising alternate catalysts for facilitating such reactions. This review article critically summarizes the recent developments in non-palladium-catalyzed oxidative coupling reactions mediated by hypervalent iodine (III) reagents with significant emphasis on understanding the mechanistic aspects in detail.
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Affiliation(s)
| | - Aleena Raju
- Chemistry Division, School of Advanced Science, VIT University, Chennai, India
| | - Hideyasu China
- Department of Medical Bioscience, Nagahama Institute of Bio-Science and Technology, Nagahama, Japan
| | | | - Toshifumi Dohi
- College of Pharmaceutical Sciences, Ritsumeikan University, Kusatsu, Japan
- *Correspondence: Toshifumi Dohi, ; Fateh V. Singh,
| | - Fateh V. Singh
- Chemistry Division, School of Advanced Science, VIT University, Chennai, India
- *Correspondence: Toshifumi Dohi, ; Fateh V. Singh,
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28
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Wei Y, Miao J, Ge J, Lang J, Yu C, Zhang L, Alvarez PJJ, Long M. Ultrahigh Peroxymonosulfate Utilization Efficiency over CuO Nanosheets via Heterogeneous Cu(III) Formation and Preferential Electron Transfer during Degradation of Phenols. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:8984-8992. [PMID: 35638588 DOI: 10.1021/acs.est.2c01968] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In persulfate activation by copper-based catalysts, high-valent copper (Cu(III)) is an overlooked reactive intermediate that contributes to efficient persulfate utilization and organic pollutant removal. However, the mechanisms underlying heterogeneous activation and enhanced persulfate utilization are not fully understood. Here, copper oxide (CuO) nanosheets (synthesized with a facile precipitation method) exhibited high catalytic activity for peroxymonosulfate (PMS) activation with 100% 4-chlorophenol (4-CP) degradation within 3 min. Evidence for the critical role of surface-associated Cu(III) on PMS activation and 4-CP degradation over a wide pH range (pH 3-10) was obtained using in situ Raman spectroscopy, electron paramagnetic resonance, and quenching tests. Cu(III) directly oxidized 4-CP and other phenolic pollutants, with rate constants inversely proportional to their ionization potentials. Cu(III) preferentially oxidizes 4-CP rather than react with two PMS molecules to generate one molecule of 1O2, thus minimizing this less efficient PMS utilization pathway. Accordingly, a much higher PMS utilization efficiency (77% of electrons accepted by PMS ascribed to 4-CP mineralization) was obtained with CuO/PMS than with a radical pathway-dominated Co3O4/PMS system (27%) or with the 1O2 pathway-dominated α-MnO2/PMS system (26%). Overall, these results highlight the potential benefits of PMS activation via heterogeneous high-valent copper oxidation and offer mechanistic insight into ultrahigh PMS utilization efficiency for organic pollutant removal.
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Affiliation(s)
- Yan Wei
- School of Environmental Science and Engineering, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jie Miao
- School of Environmental Science and Engineering, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jianxin Ge
- School of Environmental Science and Engineering, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Junyu Lang
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
| | - Chunyang Yu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lizhi Zhang
- School of Environmental Science and Engineering, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Pedro J J Alvarez
- Department of Civil and Environmental Engineering, Rice University, Houston, Texas 77005, United States
| | - Mingce Long
- School of Environmental Science and Engineering, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
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29
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Kumari S, Sharma C, Satrawala N, Srivastava AK, Sharma KN, Joshi RK. Selenium-Directed Ortho C–H Activation of Benzyl Selenide by a Selenated NHC–Half-Pincer Ruthenium(II) Complex. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sangeeta Kumari
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur 302017, Rajasthan, India
| | - Charu Sharma
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur 302017, Rajasthan, India
| | - Naveen Satrawala
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur 302017, Rajasthan, India
| | - Avinash K. Srivastava
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur 302017, Rajasthan, India
| | - Kamal N. Sharma
- Department of Chemistry, Amity School of Applied Sciences, Amity University, Haryana, Manesar, Gurugram 122413, Haryana, India
| | - Raj K. Joshi
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur 302017, Rajasthan, India
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30
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Souilah C, Jannuzzi SAV, Demirbas D, Ivlev S, Swart M, DeBeer S, Casitas A. Synthesis of Fe
III
and Fe
IV
Cyanide Complexes Using Hypervalent Iodine Reagents as Cyano‐Transfer One‐Electron Oxidants. Angew Chem Int Ed Engl 2022; 61:e202201699. [PMID: 35285116 PMCID: PMC9313551 DOI: 10.1002/anie.202201699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Charafa Souilah
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Germany
| | - Sergio A. V. Jannuzzi
- Max Planck Institute for Chemical Energy Conversion (MPI CEC) Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
| | - Derya Demirbas
- Max Planck Institute for Chemical Energy Conversion (MPI CEC) Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
| | - Sergei Ivlev
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Germany
| | - Marcel Swart
- ICREA Pg. Lluís Companys 23 08010 Barcelona Spain
- Institut de Química Computacional i Catàlisi, Facultat de Ciències Universitat de Girona c/ M.A. Capmany 69 17003 Girona Spain
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion (MPI CEC) Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
| | - Alicia Casitas
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Germany
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31
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Chen Y, Gu Y, Meng H, Shao Q, Xu Z, Bao W, Gu Y, Xue X, Zhao Y. Metal‐Free C−H Functionalization via Diaryliodonium Salts with a Chemically Robust Dummy Ligand. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yixuan Chen
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Yuefei Gu
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Huan Meng
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Qianzhen Shao
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Zhenchuang Xu
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Wenjing Bao
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Yucheng Gu
- Syngenta Jealott's Hill International Research Centre Bracknell, Berkshire RG42 6EY UK
| | - Xiao‐Song Xue
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
| | - Yanchuan Zhao
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
- Key Laboratory of Energy Regulation Materials Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 China
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32
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Saikia RA, Hazarika N, Biswakarma N, Chandra Deka R, Thakur AJ. Metal-free S-arylation of 5-mercaptotetrazoles and 2-mercaptopyridine with unsymmetrical diaryliodonium salts. Org Biomol Chem 2022; 20:3890-3896. [PMID: 35481589 DOI: 10.1039/d2ob00406b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein, we demonstrate the application of unsymmetrical iodonium salts towards S-arylation of heterocyclic thiols (especially tetrazole-5-thiols and pyridine-2-thiol) under metal-free conditions, affording a diverse range of di(hetero)aryl thioethers in moderate to good yields. A detailed study on the effects of counter-anions and the auxiliary of iodonium salts was conducted. Suitable auxiliary selection of the unsymmetrical iodonium salt offers flexibility for a wide range of aryl moieties and its incorporation into S-arylation. The DFT study supports the experimental observations of chemoselective arylation.
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Affiliation(s)
- Raktim Abha Saikia
- Department of Chemical Sciences, Tezpur University, Napaam-784028, Assam, India.
| | - Nitumoni Hazarika
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati-781039, India
| | - Nishant Biswakarma
- Department of Chemical Sciences, Tezpur University, Napaam-784028, Assam, India.
| | - Ramesh Chandra Deka
- Department of Chemical Sciences, Tezpur University, Napaam-784028, Assam, India.
| | - Ashim Jyoti Thakur
- Department of Chemical Sciences, Tezpur University, Napaam-784028, Assam, India.
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33
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Wang N, Chi Z, Wang X, Gao Z, Li S, Li G. Formal C-H/C-I Metathesis: Site-Selective C-H Iodination of Anilines Using Aryl Iodides. Org Lett 2022; 24:3657-3662. [PMID: 35576322 DOI: 10.1021/acs.orglett.2c01283] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Functional group metathesis has the potential to render mild reaction conditions for C-H functionalization. Protocols for the meta- and ortho-C-H iodination of aniline derivatives via formal C(sp2)-H/C(sp2)-I metathesis using 2-nitrophenyl iodides as mild iodinating reagents are reported herein. These protocols led to the production of a range of valuable iodinated aniline derivatives. These results demonstrate the potential of developing novel site-selective C-H activation reactions with electron-rich compounds, since mild reagents can often been utilized in functional group metathesis reactions.
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Affiliation(s)
- Ning Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350002, China.,Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Zhuomin Chi
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Xinchao Wang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Zezhong Gao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Shangda Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Gang Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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34
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Wang Y, Simon H, Chen X, Lin Z, Chen S, Ackermann L. Distal Ruthenaelectro-Catalyzed meta-C-H Bromination with Aqueous HBr. Angew Chem Int Ed Engl 2022; 61:e202201595. [PMID: 35172030 PMCID: PMC9310730 DOI: 10.1002/anie.202201595] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Indexed: 12/13/2022]
Abstract
While electrochemical ortho‐selective C−H activations are well established, distal C−H activations continue to be underdeveloped. In contrast, we herein describe the electrochemical meta‐C−H functionalization. The remote C−H bromination was accomplished in an undivided cell by RuCl3⋅3 H2O with aqueous HBr. The electrohalogenation proceeded under exogenous ligand‐ and electrolyte‐free conditions. Notably, pyrazolylarenes were meta‐selectively brominated at the benzenoid moiety, rather than on the electron‐rich pyrazole ring for the first time. Mechanistic studies were suggestive of an initial ruthenacycle formation, and a subsequent ligand‐to‐ligand hydrogen transfer (LLHT) process to liberate the brominated product.
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Affiliation(s)
- Yulei Wang
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany
| | - Hendrik Simon
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany
| | - Xinran Chen
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany.,Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Zhipeng Lin
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany
| | - Shan Chen
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany
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35
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36
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Jia C, Wu N, Li G, Cui X. meta-Allylation of Arenes via Ruthenium-Catalyzed Cross-Dehydrogenative Coupling. J Org Chem 2022; 87:6934-6941. [PMID: 35486707 DOI: 10.1021/acs.joc.2c00332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A successful example of oxidative meta-dehydrogenative allylation of arenes with alkenes has been developed using Ru(PPh3)3Cl2 as a catalyst and DTBP as an oxidant. In the allylation process, pyrimidines, pyrazoles, and purines, found widely in nucleosides, were effective auxiliary groups. Gram-scale experiments took place smoothly under optimized conditions. Mechanistic studies indicated that ruthenium-catalyzed meta-dehydrogenative allylation was a free-radical process. The allylation process developed herein provides an efficient and practical strategy to prepare versatile meta-allylated arenes.
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Affiliation(s)
- Chunqi Jia
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Nini Wu
- College of Chemistry and Chemical Engineering, Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, Anyang Normal University, Anyang 455002, P. R. China
| | - Gang Li
- College of Chemistry and Chemical Engineering, Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, Anyang Normal University, Anyang 455002, P. R. China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
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37
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Xu Q, Zhang H, Ge FB, Wang XM, Zhang P, Lu CJ, Liu RR. Cu(I)-Catalyzed Asymmetric Arylation of Pyrroles with Diaryliodonium Salts toward the Synthesis of N-N Atropisomers. Org Lett 2022; 24:3138-3143. [PMID: 35452582 DOI: 10.1021/acs.orglett.2c00812] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report herein that copper(I) catalysis using a bis(phosphine) dioxide ligand can catalyze the desymmetric C-H arylation of prochiral bipyrroles. More than 50 nitrogen-nitrogen atropisomers were achieved in good to excellent yields with excellent enantioselectivities (≤97% yield, ≤98% ee). The reaction proceeds under mild conditions with good functional group compatibility on arenes and diaryliodonium salts. Moreover, this principle enables iterative arylation of the bipyrroles to enantioselectively arylate different positions during the catalysis of copper.
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Affiliation(s)
- Qi Xu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Huan Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Fang-Bei Ge
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Xiao-Mei Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Peng Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Chuan-Jun Lu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Ren-Rong Liu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
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38
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Liu HC, Gong XP, Wang YZ, Niu ZJ, Yue H, Liu XY, Liang YM. Three-Component Ru-Catalyzed Regioselective Alkylarylation of Vinylarenes via Meta-Selective C(sp 2)–H Bond Functionalization. Org Lett 2022; 24:3043-3047. [DOI: 10.1021/acs.orglett.2c00999] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Hong-Chao Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xiao-Ping Gong
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yu-Zhao Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zhi-Jie Niu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Heng Yue
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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39
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Pabst TP, Chirik PJ. Development of Cobalt Catalysts for the meta-Selective C(sp 2)–H Borylation of Fluorinated Arenes. J Am Chem Soc 2022; 144:6465-6474. [PMID: 35369695 PMCID: PMC9010962 DOI: 10.1021/jacs.2c01162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cobalt precatalysts for the meta-selective borylation of fluorinated arenes are described. Initial screening and stoichiometric reactivity studies culminated in the preparation of a cobalt alkyl precatalyst supported by the sterically protected terpyridine (5,5″-Me2ArTpy = 4'-(4-N,N'-dimethylaminophenyl)-5,5″-dimethyl-2,2':6',2″-terpyridine). Under the optimized conditions, borylation with this precatalyst afforded up to 16 turnovers and near-exclusive meta regioselectivity with a range of substituted fluoroarenes in cyclopentyl methyl ether solvent at room temperature. Deuterium kinetic isotope effects of 2.9(2) at 23 °C support a turnover-limiting and selectivity-determining C(sp2)-H activation step, and stoichiometric C-H activation experiments provided insights into the identity of the C-H activating intermediate in catalysis. Analysis of the relevant Co-C and C-H bond thermodynamics support that the thermodynamics of C-H activation favor ortho-to-fluorine selectivity, providing additional, indirect support for kinetic control of C-H activation as the origin of meta selectivity.
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Affiliation(s)
- Tyler P. Pabst
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Paul J. Chirik
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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40
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Souilah C, Jannuzzi SAV, Demirbas D, Ivlev S, Swart M, DeBeer S, Casitas A. Synthesis of Fe
III
and Fe
IV
Cyanide Complexes Using Hypervalent Iodine Reagents as Cyano‐Transfer One‐Electron Oxidants. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Charafa Souilah
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Germany
| | - Sergio A. V. Jannuzzi
- Max Planck Institute for Chemical Energy Conversion (MPI CEC) Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
| | - Derya Demirbas
- Max Planck Institute for Chemical Energy Conversion (MPI CEC) Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
| | - Sergei Ivlev
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Germany
| | - Marcel Swart
- ICREA Pg. Lluís Companys 23 08010 Barcelona Spain
- Institut de Química Computacional i Catàlisi, Facultat de Ciències Universitat de Girona c/ M.A. Capmany 69 17003 Girona Spain
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion (MPI CEC) Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
| | - Alicia Casitas
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Germany
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41
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Wang Y, Simon H, Chen X, Lin Z, Chen S, Ackermann L. Distale Ruthenaelektro‐katalysierte
meta
‐C−H‐Bromierung mit wässriger HBr. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yulei Wang
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
| | - Hendrik Simon
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
| | - Xinran Chen
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
- Institut für Chemie Zhejiang Universität Hangzhou 310027 China
| | - Zhipeng Lin
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
| | - Shan Chen
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
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42
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Mandal R, Garai B, Sundararaju B. Weak-Coordination in C–H Bond Functionalizations Catalyzed by 3d Metals. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05267] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Rajib Mandal
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh208016, India
| | - Bholanath Garai
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh208016, India
| | - Basker Sundararaju
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh208016, India
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43
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Li WX, Yang BW, Na JH, Rao W, Chu XQ, Shen ZL. Palladium-catalyzed cross-coupling of alkylindium reagent with diaryliodonium salt. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153729] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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44
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Ramesh P, Sreenivasulu C, Kishore DR, Srinivas D, Gorantla KR, Mallik BS, Satyanarayana G. Recyclable Aliphatic Nitrile-Template Enabled Remote meta-C-H Functionalization at Room Temperature. J Org Chem 2022; 87:2204-2221. [PMID: 35143206 DOI: 10.1021/acs.joc.1c02865] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This article describes the development of a new aliphatic nitrile-template-directed remote meta-selective C-H olefin functionalization reaction of arenes. Remarkably, unlike the previous reports, this process is feasible at room temperature and enabled the formation of products with excellent regioselectivity. The present protocol encompasses a broad spectrum of substituted dihydrocinnamic acids and olefins, producing meta-C-H olefinated products (up to 96% yield). In addition, the efficacy of the present method has been showcased by the synthesis of various drug analogues (e.g., cholesterol, estrone, ibuprofen, and naproxen). Significantly, the robustness of meta-olefination was also demonstrated by gram-scale synthesis. The new nitrile-based meta-directing template, in particular, could be easily synthesized in two steps and recycled under mild conditions.
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Affiliation(s)
- Perla Ramesh
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
| | | | - Dakoju Ravi Kishore
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
| | - Dasari Srinivas
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
| | - Koteswara Rao Gorantla
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
| | - Bhabani S Mallik
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
| | - Gedu Satyanarayana
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
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45
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Karandikar SS, Stuart DR. Refining boron-iodane exchange to access versatile arylation reagents. Chem Commun (Camb) 2022; 58:1211-1214. [PMID: 34982811 DOI: 10.1039/d1cc06341c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aryl(Mes)iodonium salts, which are multifaceted aryl transfer reagents, are synthesized via boron-iodane exchange. Modification to both the nucleophilic (aryl boron) and electrophilic (mesityl-λ3-iodane) reaction components results in improved yield and faster reaction time compared to previous conditions. Mechanistic studies reveal a pathway that is more like transmetallation than SEAr.
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Affiliation(s)
- Shubhendu S Karandikar
- Portland State University, Chemistry, 1719 SW 10th Ave, Science Research and Teaching Center, Portland, Oregon 97201, USA.
| | - David R Stuart
- Portland State University, Chemistry, 1719 SW 10th Ave, Science Research and Teaching Center, Portland, Oregon 97201, USA.
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46
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Geoghegan BL, Liu Y, Peredkov S, Dechert S, Meyer F, DeBeer S, Cutsail GE. Combining Valence-to-Core X-ray Emission and Cu K-edge X-ray Absorption Spectroscopies to Experimentally Assess Oxidation State in Organometallic Cu(I)/(II)/(III) Complexes. J Am Chem Soc 2022; 144:2520-2534. [PMID: 35050605 PMCID: PMC8855422 DOI: 10.1021/jacs.1c09505] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
A series of organometallic
copper complexes in formal oxidation
states ranging from +1 to +3 have been characterized by a combination
of Cu K-edge X-ray absorption (XAS) and Cu Kβ valence-to-core
X-ray emission spectroscopies (VtC XES). Each formal oxidation state
exhibits distinctly different XAS and VtC XES transition energies
due to the differences in the Cu Zeff, concomitant with
changes in physical oxidation state from +1 to +2 to +3. Herein, we
demonstrate the sensitivity of XAS and VtC XES to the physical oxidation
states of a series of N-heterocyclic carbene (NHC) ligated organocopper
complexes. We then extend these methods to the study of the [Cu(CF3)4]− ion. Complemented by computational
methods, the observed spectral transitions are correlated with the
electronic structure of the complexes and the Cu Zeff.
These calculations demonstrate that a contraction of the Cu 1s orbitals
to deeper binding energy upon oxidation of the Cu center manifests
spectroscopically as a stepped increase in the energy of both XAS
and Kβ2,5 emission features with increasing formal
oxidation state within the [Cun+(NHC2)]n+ series. The newly synthesized Cu(III) cation
[CuIII(NHC4)]3+ exhibits spectroscopic
features and an electronic structure remarkably similar to [Cu(CF3)4]−, supporting a physical oxidation
state assignment of low-spin d8 Cu(III) for [Cu(CF3)4]−. Combining XAS and VtC XES
further demonstrates the necessity of combining multiple spectroscopies
when investigating the electronic structures of highly covalent copper
complexes, providing a template for future investigations into both
synthetic and biological metal centers.
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Affiliation(s)
- Blaise L. Geoghegan
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
- Institute of Inorganic Chemistry, University of Duisburg-Essen, Universitätsstrasse 5-7, 45117 Essen, Germany
| | - Yang Liu
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Sergey Peredkov
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Sebastian Dechert
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Franc Meyer
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - George E. Cutsail
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
- Institute of Inorganic Chemistry, University of Duisburg-Essen, Universitätsstrasse 5-7, 45117 Essen, Germany
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47
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To AJ, Murphy GK. Iodolium salts as halogen-bond donor catalysts in the Nazarov cyclization: the molecular oxygen enigma. NEW J CHEM 2022. [DOI: 10.1039/d2nj02731c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nazarov cyclizations of activated precurosrs are achieved under iodolium catalysis, provided that oxygen is present for catalyst activation and turnover.
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Affiliation(s)
- Avery J. To
- Department of Chemistry and Waterloo Institute for Nanotechnology University of Waterloo 200 University Ave W., Waterloo, Ontario, N2L3G1, Canada
| | - Graham K. Murphy
- Department of Chemistry and Waterloo Institute for Nanotechnology University of Waterloo 200 University Ave W., Waterloo, Ontario, N2L3G1, Canada
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48
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Peng H, Liu Q, Sun Y, Luo B, Yu T, Huang P, Zhu D, Wen S. Tandem cyclization/arylation of diaryliodoniums via in situ constructed benzoxazole as a directing group for atom-economical transformation. Org Chem Front 2022. [DOI: 10.1039/d1qo01463c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Linear diaryliodoniums often undergo only single arylation and leave equivalent aryl iodide as waste.
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Affiliation(s)
- Hui Peng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
| | - Qian Liu
- School of Pharmacy, Guangdong Pharmaceutical University, 280 Waihuan East Road, Guangzhou 510006, People's Republic of China
| | - Yameng Sun
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
| | - Bingling Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
| | - Tianyian Yu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
| | - Peng Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
| | - Daqian Zhu
- School of Pharmacy, Guangdong Pharmaceutical University, 280 Waihuan East Road, Guangzhou 510006, People's Republic of China
| | - Shijun Wen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
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49
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Seth K. Recent progress in rare-earth metal-catalyzed sp 2 and sp 3 C–H functionalization to construct C–C and C–heteroelement bonds. Org Chem Front 2022. [DOI: 10.1039/d1qo01859k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The review presents rare-earth metal-catalyzed C(sp2/sp3)–H functionalization accessing C–C/C–heteroatom bonds and olefin (co)polymerization, highlighting substrate scope, mechanistic realization, and origin of site-, enantio-/diastereo-selectivity.
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Affiliation(s)
- Kapileswar Seth
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) – Guwahati, Sila Katamur, Changsari, Kamrup 781101, Assam, India
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50
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Kikushima K, Elboray EE, Jimenez-Halla JOC, Solorio-Alvarado CR, Dohi T. Diaryliodonium(III) Salts in One-Pot Double Functionalization of C–IIII and ortho C–H Bonds. Org Biomol Chem 2022; 20:3231-3248. [DOI: 10.1039/d1ob02501e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Since the 1950s, diaryliodonium(III) salts have been demonstrated to participate in various arylation reactions, forming aryl–heteroatom and aryl–carbon bonds. Incorporating the arylation step into sequential transformations would provide access to...
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