1
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Changmai S, Sultana S, Saikia AK. Review of electrochemical transition‐metal‐catalyzed C−H functionalization reactions. ChemistrySelect 2023. [DOI: 10.1002/slct.202203530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Affiliation(s)
- Sumi Changmai
- Applied Organic Chemistry Chemical Sciences & Technology Division CSIR-North East Institute of Science and Technology 785006 Jorhat India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
| | | | - Anil K. Saikia
- Indian Institute of Technology-Guwahati Department of Chemistry Guwahati 781039 Assam India
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2
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Yao QJ, Huang FR, Chen JH, Zhong MY, Shi BF. Enantio- and Regioselective Electrooxidative Cobalt-Catalyzed C-H/N-H Annulation with Alkenes. Angew Chem Int Ed Engl 2023; 62:e202218533. [PMID: 36658097 DOI: 10.1002/anie.202218533] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 01/21/2023]
Abstract
In recent years, the merging of electrosynthesis with 3d metal catalyzed C-H activation has emerged as a sustainable and powerful technique in organic synthesis. Despite the impressive advantages, the development of an enantioselective version remains elusive and poses a daunting challenge. Herein, we report the first electrooxidative cobalt-catalyzed enantio- and regioselective C-H/N-H annulation with olefins using an undivided cell at room temperature (up to 99 % ee). t Bu-Salox, a rationally designed Salox ligand bearing a bulky tert-butyl group at the ortho-position of phenol, was found to be crucial for this asymmetric annulation reaction. A strong cooperative effect between t Bu-Salox and 3,4,5-trichloropyridine enabled the highly enantio- and regioselective C-H annulation with the more challenging α-olefins without secondary bond interactions (up to 96 % ee and 97 : 3 rr). Cyclovoltametric studies, and the preparation, characterization, and transformation of cobaltacycle intermediates shed light on the mechanism of this reaction.
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Affiliation(s)
- Qi-Jun Yao
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Fan-Rui Huang
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Jia-Hao Chen
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Ming-Yu Zhong
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Bing-Feng Shi
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
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3
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Mondal A, van Gemmeren M. Silver-Free C-H Activation: Strategic Approaches towards Realizing the Full Potential of C-H Activation in Sustainable Organic Synthesis. Angew Chem Int Ed Engl 2022; 61:e202210825. [PMID: 36062882 PMCID: PMC9828228 DOI: 10.1002/anie.202210825] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Indexed: 01/12/2023]
Abstract
The activation of carbon-hydrogen bonds is considered as one of the most attractive techniques in synthetic organic chemistry because it bears the potential to shorten synthetic routes as well as to produce complementary product scopes compared to traditional synthetic strategies. However, many current methods employ silver salts as additives, leading to stoichiometric metal waste and thereby preventing the full potential of C-H activation to be exploited. Therefore, the development of silver-free protocols has recently received increasing attention. Mechanistically, silver can serve various roles in C-H activation and thus, avoiding the use of silver requires different approaches based on the role it serves in a given process. In this Review, we present the comparison of silver-based and silver-free methods. Focusing on the strategic approaches to develop silver-free C-H activation, we provide the reader with the means to develop sustainable methods for C-H activation.
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Affiliation(s)
- Arup Mondal
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149MünsterGermany
| | - Manuel van Gemmeren
- Otto-Diels-Institut für Organische ChemieChristian-Albrechts-Universität zu KielOtto-Hahn-Platz 424118KielGermany
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4
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Li Y, Liou Y, Oliveira JCA, Ackermann L. Ruthenium(II)/Imidazolidine Carboxylic Acid-Catalyzed C-H Alkylation for Central and Axial Double Enantio-Induction. Angew Chem Int Ed Engl 2022; 61:e202212595. [PMID: 36108175 PMCID: PMC9828380 DOI: 10.1002/anie.202212595] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Indexed: 01/12/2023]
Abstract
Enantioselective C-H activation has surfaced as a transformative toolbox for the efficient assembly of chiral molecules. However, despite of major advances in rhodium and palladium catalysis, ruthenium(II)-catalyzed enantioselective C-H activation has thus far largely proven elusive. In contrast, we herein report on a ruthenium(II)-catalyzed highly regio-, diastereo- and enantioselective C-H alkylation. The key to success was represented by the identification of novel C2-symmetric chiral imidazolidine carboxylic acids (CICAs), which are easily accessible in a one-pot fashion, as highly effective chiral ligands. This ruthenium/CICA system enabled the efficient installation of central and axial chirality, and featured excellent branched to linear ratios with generally >20 : 1 dr and up to 98 : 2 er. Mechanistic studies by experiment and computation were carried out to understand the catalyst mode of action.
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Affiliation(s)
- Yanjun Li
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Yan‐Cheng Liou
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
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5
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Zhang J, Das B, Verho O, Bäckvall J. Electrochemical Palladium‐Catalyzed Oxidative Carbonylation‐Cyclization of Enallenols. Angew Chem Int Ed Engl 2022; 61:e202212131. [PMID: 36222322 PMCID: PMC10098644 DOI: 10.1002/anie.202212131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Indexed: 11/06/2022]
Abstract
Herein, we report an electrochemical oxidative palladium-catalyzed carbonylation-carbocyclization of enallenols to afford γ-lactones and spirolactones, which proceeds with excellent chemoselectivity. Interestingly, electrocatalysis was found to have an accelerating effect on the rate of the tandem process, leading to a more efficient reaction than that under chemical redox conditions.
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Affiliation(s)
- Jianwei Zhang
- Department of Organic Chemistry, Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Biswanath Das
- Department of Organic Chemistry, Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Oscar Verho
- Department of Medicinal Chemistry Uppsala Biomedical Center, BMC Uppsala University 75236 Uppsala Sweden
| | - Jan‐E. Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
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6
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Zhang Q, Liang K, Guo C. Enantioselective Nickel‐Catalyzed Electrochemical Radical Allylation. Angew Chem Int Ed Engl 2022; 61:e202210632. [DOI: 10.1002/anie.202210632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Qinglin Zhang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China Hefei 230026 China
| | - Kang Liang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China Hefei 230026 China
| | - Chang Guo
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry University of Science and Technology of China Hefei 230026 China
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7
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Zhang J, Fan J, Guo Z, Wu Y, Wu J, Xie M. Palladium‐catalyzed Atroposelective Interannular C‐H Arylation of Biaryl Aldehydes with Aryl Iodides Enabled by a Transient Directing Group Strategy. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | | | - Yehe Wu
- Anhui Normal University CHINA
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8
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Han T, Zhang Z, Wang M, Xu L, Mei G. The Rational Design and Atroposelective Synthesis of Axially Chiral C2‐Arylpyrrole‐Derived Amino Alcohols. Angew Chem Int Ed Engl 2022; 61:e202207517. [DOI: 10.1002/anie.202207517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Indexed: 12/15/2022]
Affiliation(s)
- Tian‐Jiao Han
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Zheng‐Xu Zhang
- School of Chemistry and Chemical Engineering Shandong University of Technology Zibo 255000 Shandong China
| | - Min‐Can Wang
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Li‐Ping Xu
- School of Chemistry and Chemical Engineering Shandong University of Technology Zibo 255000 Shandong China
| | - Guang‐Jian Mei
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
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9
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Zhang Q, Liang K, Guo C. Enantioselective Nickel‐Catalyzed Electrochemical Radical Allylation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Qinglin Zhang
- USTC: University of Science and Technology of China HFNL CHINA
| | - Kang Liang
- USTC: University of Science and Technology of China HFNL CHINA
| | - Chang Guo
- University of Science and Technology of China Hefei National Laboratory for Physical Sciences at the Microscale No.96, JinZhai Road Baohe District 230026 Hefei CHINA
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10
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Han TJ, Zhang ZX, Wang MC, Xu LP, Mei GJ. The Rational Design and Atroposelective Synthesis of Axially Chiral C2‐Arylpyrrole‐Derived Amino Alcohols. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Zheng-Xu Zhang
- Shandong University of Technology College of Chemistry CHINA
| | | | - Li-Ping Xu
- Shandong University of Technology College of Chemistry CHINA
| | - Guang-Jian Mei
- Zhengzhou University Chemistry Zhengzhou 450001 450001 Zhengzhou CHINA
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11
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Liu M, Sun J, Erbay TG, Ni HQ, Martín-Montero R, Liu P, Engle KM. Pd II -Catalyzed C(alkenyl)-H Activation Facilitated by a Transient Directing Group. Angew Chem Int Ed Engl 2022; 61:e202203624. [PMID: 35467792 PMCID: PMC9320856 DOI: 10.1002/anie.202203624] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Indexed: 12/12/2022]
Abstract
Palladium(II)‐catalyzed C(alkenyl)−H alkenylation enabled by a transient directing group (TDG) strategy is described. The dual catalytic process takes advantage of reversible condensation between an alkenyl aldehyde substrate and an amino acid TDG to facilitate coordination of the metal catalyst and subsequent C(alkenyl)−H activation by a tailored carboxylate base. The resulting palladacycle then engages an acceptor alkene, furnishing a 1,3‐diene with high regio‐ and E/Z‐selectivity. The reaction enables the synthesis of enantioenriched atropoisomeric 2‐aryl‐substituted 1,3‐dienes, which have seldom been examined in previous literature. Catalytically relevant alkenyl palladacycles were synthesized and characterized by X‐ray crystallography, and the energy profiles of the C(alkenyl)−H activation step and the stereoinduction model were elucidated by density functional theory (DFT) calculations.
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Affiliation(s)
- Mingyu Liu
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
| | - Juntao Sun
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
| | - Tuğçe G Erbay
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Hui-Qi Ni
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
| | - Raúl Martín-Montero
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Keary M Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
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12
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Liu M, Sun J, Erbay TG, Ni H, Martín‐Montero R, Liu P, Engle KM. Pd
II
‐Catalyzed C(alkenyl)−H Activation Facilitated by a Transient Directing Group**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203624] [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)
- Mingyu Liu
- Department of Chemistry The Scripps Research Institute 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Juntao Sun
- Department of Chemistry The Scripps Research Institute 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Tuğçe G. Erbay
- Department of Chemistry University of Pittsburgh Pittsburgh PA 15260 USA
| | - Hui‐Qi Ni
- Department of Chemistry The Scripps Research Institute 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Raúl Martín‐Montero
- Department of Chemistry The Scripps Research Institute 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Peng Liu
- Department of Chemistry University of Pittsburgh Pittsburgh PA 15260 USA
| | - Keary M. Engle
- Department of Chemistry The Scripps Research Institute 10550 N. Torrey Pines Road La Jolla CA 92037 USA
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13
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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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14
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Wu Y, Li M, Sun J, Zheng G, Zhang Q. Synthesis of Axially Chiral Aldehydes by N-Heterocyclic-Carbene-Catalyzed Desymmetrization Followed by Kinetic Resolution. Angew Chem Int Ed Engl 2022; 61:e202117340. [PMID: 35100461 DOI: 10.1002/anie.202117340] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Indexed: 12/23/2022]
Abstract
Axially chiral aldehydes have received increasing attention in enantioselective catalysis. However, only very few catalytic methods have been developed to construct structurally diverse axially chiral aldehydes. We herein describe an NHC-catalyzed atroposelective esterification of biaryl dialdehydes as a general and practical strategy for the construction of axially chiral aldehydes. Mechanistic studies indicate that coupling proceeds through a novel combination of NHC-catalyzed desymmetrization of the dialdehydes and kinetic resolution. This protocol features excellent enantioselectivity, mild conditions, good functional-group tolerance, and applicability to late-stage functionalization and provides a modular platform for the synthesis of axially chiral aldehydes and their derivatives.
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Affiliation(s)
- Yingtao Wu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Mingrui Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Jiaqiong Sun
- School of Environment, Northeast Normal University, Changchun, 130117, China
| | - Guangfan Zheng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Qian Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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15
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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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16
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Wu Y, Li M, Sun J, Zheng G, Zhang Q. Synthesis of Axially Chiral Aldehydes by N‐Heterocyclic‐Carbene‐Catalyzed Desymmetrization Followed by Kinetic Resolution. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117340] [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)
- Yingtao Wu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Department of Chemistry Northeast Normal University Changchun 130024 China
| | - Mingrui Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Department of Chemistry Northeast Normal University Changchun 130024 China
| | - Jiaqiong Sun
- School of Environment Northeast Normal University Changchun 130117 China
| | - Guangfan Zheng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Department of Chemistry Northeast Normal University Changchun 130024 China
| | - Qian Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Department of Chemistry Northeast Normal University Changchun 130024 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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17
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Panja S, Ahsan S, Pal T, Kolb S, Ali W, Sharma S, Das C, Grover J, Dutta A, Werz DB, Paul A, Maiti D. Non-directed Pd-catalysed electrooxidative olefination of arenes. Chem Sci 2022; 13:9432-9439. [PMID: 36093017 PMCID: PMC9383708 DOI: 10.1039/d2sc03288k] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 07/15/2022] [Indexed: 12/19/2022] Open
Abstract
The Fujiwara–Moritani reaction is a powerful tool for the olefination of arenes by Pd-catalysed C–H activation. However, the need for superstoichiometric amounts of toxic chemical oxidants makes the reaction unattractive from an environmental and atom-economical view. Herein, we report the first non-directed and regioselective olefination of simple arenes via an electrooxidative Fujiwara–Moritani reaction. The versatility of this operator-friendly approach was demonstrated by a broad substrate scope which includes arenes, heteroarenes and a variety of olefins. Electroanalytical studies suggest the involvement of a Pd(ii)/Pd(iv) catalytic cycle via a Pd(iii) intermediate. The Fujiwara–Moritani reaction using electric current is a powerful tool for the olefination of arenes by Pd-catalysed C–H activation.![]()
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Affiliation(s)
- Subir Panja
- IIT Bombay, Department of Chemistry and IDP, Climate Studies, Powai, Mumbai 400076, India
| | - Salman Ahsan
- Indian Institute of Science Education and Research (IISER) Bhopal, Department of Chemistry, Bhopal, Madhya Pradesh 462066, India
| | - Tanay Pal
- IIT Bombay, Department of Chemistry and IDP, Climate Studies, Powai, Mumbai 400076, India
| | - Simon Kolb
- Technische Universität Braunschweig, Institute of Organic Chemistry, Hagenring 30, 38106 Braunschweig, Germany
| | - Wajid Ali
- IIT Bombay, Department of Chemistry and IDP, Climate Studies, Powai, Mumbai 400076, India
| | - Sulekha Sharma
- Indian Institute of Science Education and Research (IISER) Bhopal, Department of Chemistry, Bhopal, Madhya Pradesh 462066, India
| | - Chandan Das
- IIT Bombay, Department of Chemistry and IDP, Climate Studies, Powai, Mumbai 400076, India
| | - Jagrit Grover
- IIT Bombay, Department of Chemistry and IDP, Climate Studies, Powai, Mumbai 400076, India
| | - Arnab Dutta
- IIT Bombay, Department of Chemistry and IDP, Climate Studies, Powai, Mumbai 400076, India
| | - Daniel B. Werz
- Technische Universität Braunschweig, Institute of Organic Chemistry, Hagenring 30, 38106 Braunschweig, Germany
| | - Amit Paul
- Indian Institute of Science Education and Research (IISER) Bhopal, Department of Chemistry, Bhopal, Madhya Pradesh 462066, India
| | - Debabrata Maiti
- IIT Bombay, Department of Chemistry and IDP, Climate Studies, Powai, Mumbai 400076, India
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18
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Jacob C, Maes BUW, Evano G. Transient Directing Groups in Metal-Organic Cooperative Catalysis. Chemistry 2021; 27:13899-13952. [PMID: 34286873 DOI: 10.1002/chem.202101598] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Indexed: 12/13/2022]
Abstract
The direct functionalization of C-H bonds is among the most fundamental chemical transformations in organic synthesis. However, when the innate reactivity of the substrate cannot be utilized for the functionalization of a given single C-H bond, this selective C-H bond functionalization mostly relies on the use of directing groups that allow bringing the catalyst in close proximity to the C-H bond to be activated and these directing groups need to be installed before and cleaved after the transformation, which involves two additional undesired synthetic operations. These additional steps dramatically reduce the overall impact and the attractiveness of C-H bond functionalization techniques since classical approaches based on substrate pre-functionalization are sometimes still more straightforward and appealing. During the past decade, a different approach involving both the in situ installation and removal of the directing group, which can then often be used in a catalytic manner, has emerged: the transient directing group strategy. In addition to its innovative character, this strategy has brought C-H bond functionalization to an unprecedented level of usefulness and has enabled the development of remarkably efficient processes for the direct and selective introduction of functional groups onto both aromatic and aliphatic substrates. The processes unlocked by the development of these transient directing groups will be comprehensively overviewed in this review article.
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Affiliation(s)
- Clément Jacob
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie Organiques, Université libre de Bruxelles (ULB), Avenue F.D. Roosevelt 50, CP160/06, 1050, Brussels, Belgium.,Organic Synthesis Division, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Bert U W Maes
- Organic Synthesis Division, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Gwilherm Evano
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie Organiques, Université libre de Bruxelles (ULB), Avenue F.D. Roosevelt 50, CP160/06, 1050, Brussels, Belgium
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19
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Zhang P, Wang XM, Xu Q, Guo CQ, Wang P, Lu CJ, Liu RR. Enantioselective Synthesis of Atropisomeric Biaryls by Pd-Catalyzed Asymmetric Buchwald-Hartwig Amination. Angew Chem Int Ed Engl 2021; 60:21718-21722. [PMID: 34374189 DOI: 10.1002/anie.202108747] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/02/2021] [Indexed: 12/15/2022]
Abstract
N-C Biaryl atropisomers are prevalent in natural products and bioactive drug molecules. However, the enantioselective synthesis of such molecules has not developed significantly. Particularly, the enantioselective synthesis of N-C biaryl atropisomers by stereoselective metal-catalyzed aryl amination remains unprecedented. Herein, a Pd-catalyzed cross-coupling strategy is presented for the synthesis of N-C axially chiral biaryl molecules. A broad spectrum of N-C axially chiral compounds was obtained with excellent enantioselectivities (up to 99 % ee) and good yields (up to 98 %). The practicality of this reaction was validated in the synthesis of useful biological molecules.
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Affiliation(s)
- Peng Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Xiao-Mei Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Qi Xu
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Chang-Qiu Guo
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Peng Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Chuan-Jun Lu
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Ren-Rong Liu
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
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20
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Zhang P, Wang X, Xu Q, Guo C, Wang P, Lu C, Liu R. Enantioselective Synthesis of Atropisomeric Biaryls by Pd‐Catalyzed Asymmetric Buchwald–Hartwig Amination. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108747] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Peng Zhang
- College of Chemistry and Chemical Engineering Qingdao University Ningxia Road 308# Qingdao 266071 China
| | - Xiao‐Mei Wang
- College of Chemistry and Chemical Engineering Qingdao University Ningxia Road 308# Qingdao 266071 China
| | - Qi Xu
- College of Chemistry and Chemical Engineering Qingdao University Ningxia Road 308# Qingdao 266071 China
| | - Chang‐Qiu Guo
- College of Chemistry and Chemical Engineering Qingdao University Ningxia Road 308# Qingdao 266071 China
| | - Peng Wang
- College of Chemistry and Chemical Engineering Qingdao University Ningxia Road 308# Qingdao 266071 China
| | - Chuan‐Jun Lu
- College of Chemistry and Chemical Engineering Qingdao University Ningxia Road 308# Qingdao 266071 China
| | - Ren‐Rong Liu
- College of Chemistry and Chemical Engineering Qingdao University Ningxia Road 308# Qingdao 266071 China
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21
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He X, Wang C, Wen Y, Wang Z, Qian S. Recent Advances in Catalytic Atroposelective Construction of Pentatomic Heterobiaryl Scaffolds. ChemCatChem 2021. [DOI: 10.1002/cctc.202100539] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao‐Long He
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
| | - Cheng Wang
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
| | - You‐Wu Wen
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
| | - Zhouyu Wang
- School of Science Xihua University Chengdu 610039 P. R. China
| | - Shan Qian
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
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22
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Kolb S, Petzold M, Brandt F, Jones PG, Jacob CR, Werz DB. Electrocatalytic Activation of Donor-Acceptor Cyclopropanes and Cyclobutanes: An Alternative C(sp 3 )-C(sp 3 ) Cleavage Mode. Angew Chem Int Ed Engl 2021; 60:15928-15934. [PMID: 33890714 PMCID: PMC8362004 DOI: 10.1002/anie.202101477] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 04/21/2021] [Indexed: 12/03/2022]
Abstract
We describe the first electrochemical activation of D-A cyclopropanes and D-A cyclobutanes leading after C(sp3 )-C(sp3 ) cleavage to the formation of highly reactive radical cations. This concept is utilized to formally insert molecular oxygen after direct or DDQ-assisted anodic oxidation of the strained carbocycles, delivering β- and γ-hydroxy ketones and 1,2-dioxanes electrocatalytically. Furthermore, insights into the mechanism of the oxidative process, obtained experimentally and by additional quantum-chemical calculations are presented. The synthetic potential of the reaction products is demonstrated by diverse derivatizations.
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Affiliation(s)
- Simon Kolb
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
| | - Martin Petzold
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
| | - Felix Brandt
- Technische Universität BraunschweigInstitute of Physical and Theoretical ChemistryGaußstraße 1738106BraunschweigGermany
| | - Peter G. Jones
- Technische Universität BraunschweigInstitute of Inorganic and Analytical ChemistryHagenring 3038106BraunschweigGermany
| | - Christoph R. Jacob
- Technische Universität BraunschweigInstitute of Physical and Theoretical ChemistryGaußstraße 1738106BraunschweigGermany
| | - Daniel B. Werz
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
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23
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Kolb S, Petzold M, Brandt F, Jones PG, Jacob CR, Werz DB. Electrocatalytic Activation of Donor–Acceptor Cyclopropanes and Cyclobutanes: An Alternative C(sp
3
)−C(sp
3
) Cleavage Mode. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101477] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Simon Kolb
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Martin Petzold
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Felix Brandt
- Technische Universität Braunschweig Institute of Physical and Theoretical Chemistry Gaußstraße 17 38106 Braunschweig Germany
| | - Peter G. Jones
- Technische Universität Braunschweig Institute of Inorganic and Analytical Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Christoph R. Jacob
- Technische Universität Braunschweig Institute of Physical and Theoretical Chemistry Gaußstraße 17 38106 Braunschweig Germany
| | - Daniel B. Werz
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
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24
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Samanta RC, Ackermann L. Evolution of Earth-Abundant 3 d-Metallaelectro-Catalyzed C-H Activation: From Chelation-Assistance to C-H Functionalization without Directing Groups. CHEM REC 2021; 21:2430-2441. [PMID: 34028175 DOI: 10.1002/tcr.202100096] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/24/2021] [Accepted: 05/03/2021] [Indexed: 01/15/2023]
Abstract
Catalyzed C-H functionalizations have emerged as a transformative platform for molecular syntheses. Despite of indisputable advances, oxidative C-H activations have been largely restricted to precious transition metals and stoichiometric amounts of chemical oxidants. In contrast, we herein discuss the potential of earth-abundant, environmentally-benign 3d transition metals for C-H activation, which has recently gained major momentum. Thus, a strategy for full resource economy has been established in our group, with green electricity as a renewable redox agent, giving valuable hydrogen as the sole byproduct under redox mediator-free conditions. In this account, we detail our accomplishments in 3d metallaelectrocatalysis towards green syntheses until March 2021.
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Affiliation(s)
- Ramesh C Samanta
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany.,Woehler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
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25
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Wu G, Liu Y, Rouh H, Ma L, Tang Y, Zhang S, Zhou P, Wang JY, Jin S, Unruh D, Surowiec K, Ma Y, Li G. Asymmetric Catalytic Approach to Multilayer 3D Chirality. Chemistry 2021; 27:8013-8020. [PMID: 33830589 DOI: 10.1002/chem.202100700] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Indexed: 12/15/2022]
Abstract
The first asymmetric catalytic approach to multilayer 3D chirality has been achieved by using Suzuki-Miyaura cross-couplings. New chiral catalysts were designed and screened under various catalytic systems that proved chiral amide-phosphines to be more efficient ligands than other candidates. The multilayer 3D framework was unambiguously determined by X-ray structural analysis showing a parallel pattern of three layers consisting of top, middle and bottom aromatic rings. The X-ray structure of a catalyst complex, dichloride complex of Pd-phosphine amide, was obtained revealing an interesting asymmetric environment nearby the Pd metal center. Three rings of multilayer 3D products can be readily changed by varying aromatic ring-anchored starting materials. The resulting multilayer products displayed strong luminescence under UV irradiation and strong aggregation-induced emission (AIE). In the future, this work would benefit not only the field of asymmetric synthesis but also materials science, in particular polarized organic electronics, optoelectronics and photovoltaics.
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Affiliation(s)
- Guanzhao Wu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.,Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Yangxue Liu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Hossein Rouh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Liulei Ma
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Yao Tang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Sai Zhang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Peng Zhou
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Jia-Ying Wang
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Shengzhou Jin
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Daniel Unruh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Kazimierz Surowiec
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Yanzhang Ma
- Mechanical Engineering, Texas Tech University, Lubbock, TX 79409, USA
| | - Guigen Li
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.,Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
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26
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Wang Y, Oliveira JCA, Lin Z, Ackermann L. Electrooxidative Rhodium-Catalyzed [5+2] Annulations via C-H/O-H Activations. Angew Chem Int Ed Engl 2021; 60:6419-6424. [PMID: 33471952 PMCID: PMC7986427 DOI: 10.1002/anie.202016895] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Indexed: 01/28/2023]
Abstract
Electrooxidative annulations involving mild transition metal-catalyzed C-H activation have emerged as a transformative strategy for the rapid construction of five- and six-membered heterocycles. In contrast, we herein describe the first electrochemical metal-catalyzed [5+2] cycloadditions to assemble valuable seven-membered benzoxepine skeletons by C-H/O-H activation. The efficient alkyne annulation featured ample substrate scope, using electricity as the only oxidant. Mechanistic studies provided strong support for a rhodium(III/I) regime, involving a benzoxepine-coordinated rhodium(I) sandwich complex as the catalyst resting state, which was re-oxidized to rhodium(III) by anodic oxidation.
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Affiliation(s)
- Yulei Wang
- Institut für Organische und Biomolekulare Chemie, and Wöhler Research Institute for Sustainable ChemistryGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare Chemie, and Wöhler Research Institute for Sustainable ChemistryGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
| | - Zhipeng Lin
- Institut für Organische und Biomolekulare Chemie, and Wöhler Research Institute for Sustainable ChemistryGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, and Wöhler Research Institute for Sustainable ChemistryGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
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27
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Li Z, Wang X, Cui YM, Ma JH, Fang LL, Han LL, Yang Q, Xu Z, Xu LW. Combined Dynamic Kinetic Resolution and C-H Functionalization for Facile Synthesis of Non-Biaryl-Atropisomer-Type Axially Chiral Organosilanes. Chemistry 2021; 27:4336-4340. [PMID: 33481303 DOI: 10.1002/chem.202100237] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Indexed: 02/06/2023]
Abstract
Although asymmetric C-H functionalization has been available for the synthesis of structurally diverse molecules, catalytic dynamic kinetic resolution (DKR) approaches to change racemic stereogenic axes remain synthetic challenges in this field. Here, a concise palladium-catalyzed DKR was combined with C-H functionalization involving olefination and alkynylation for the highly efficient synthesis of non-biaryl-atropisomer-type (NBA) axially chiral oragnosilanes. The chemistry proceeded through two different and distinct DKR: first, an atroposelective C-H olefination or alkynylation produced axially chiral vinylsilanes or alkynylsilanes as a new family of non-biaryl atropisomers (NBA), and second, the extension of this DKR strategy to twofold o,o'-C-H functionalization led to the multifunctional axially chiral organosilicon compounds with up to >99 % ee.
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Affiliation(s)
- Zhao Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Xu Wang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Yu-Ming Cui
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Jun-Han Ma
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Li-Lei Fang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Lu-Lu Han
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Qin Yang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China.,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute and Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Hangzhou, 311121, P. R. China
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28
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Wang Y, Oliveira JCA, Lin Z, Ackermann L. Elektrooxidative Rhodium‐katalysierte [5+2]‐Anellierung durch C‐H/O‐H‐Aktivierung. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016895] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yulei Wang
- Institut für Organische und Biomolekulare Chemie, und Wöhler Research Institute for Sustainable Chemistry Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare Chemie, und Wöhler Research Institute for Sustainable Chemistry Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Zhipeng Lin
- Institut für Organische und Biomolekulare Chemie, und Wöhler Research Institute for Sustainable Chemistry Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, und Wöhler Research Institute for Sustainable Chemistry Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
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29
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Bag D, Verma PK, Sawant SD. Chiral Transient Directing Group Strategies in Asymmetric Synthesis. Chem Asian J 2020; 15:3225-3238. [PMID: 32822121 DOI: 10.1002/asia.202000657] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/14/2020] [Indexed: 12/13/2022]
Abstract
The development of novel methodologies for catalytic enantioselective functionalization reactions enabled by chiral transient directing groups is accompanying in a paradigm shift in the field of asymmetric synthesis. In particular, these highly atom- and step-economic enantioinduction processes commonly proceed either via enantioselective C-H functionalization, or via enantioselective hydroarylation of the pro-chiral substrates generating point, axial or planar chirality. The use of the transient directing group strategy in C-H functionalizations precludes the stoichiometric installations and removal of directing groups and enables efficient, more compatible and economical chemical routes. This minireview highlights asymmetric transition-metal-catalyzed methodologies involving chiral transient directing groups together with the scope, utility and future perspective of the field.
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Affiliation(s)
- Debojyoti Bag
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu Canal Road, Jammu, Jammu & Kashmir, 180001, India
| | - Praveen Kumar Verma
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu Canal Road, Jammu, Jammu & Kashmir, 180001, India
| | - Sanghapal D Sawant
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu Canal Road, Jammu, Jammu & Kashmir, 180001, India
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30
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Chang X, Zhang J, Zhang Q, Guo C. Merging Electrosynthesis and Bifunctional Squaramide Catalysis in the Asymmetric Detrifluoroacetylative Alkylation Reactions. Angew Chem Int Ed Engl 2020; 59:18500-18504. [PMID: 32652737 DOI: 10.1002/anie.202006903] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/07/2020] [Indexed: 11/07/2022]
Abstract
An enantioselective bifunctional squaramide-catalyzed detrifluoroacetylative alkylation reaction has been developed under electrochemical conditions. The unified strategy based on this key tandem methodology has been divergently explored for the asymmetric synthesis of fluorine-containing target molecules with good stereocontrol (up to 95 % ee). Furthermore, this asymmetric catalytic reaction combines the benefits of electrosynthesis and organocatalysis for the preparation of biologically relevant products containing C-F tertiary stereogenic centers.
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Affiliation(s)
- Xihao Chang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Jiayin Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Qinglin Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Chang Guo
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
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31
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Liu P, Bao X, Naubron JV, Chentouf S, Humbel S, Vanthuyne N, Jean M, Giordano L, Rodriguez J, Bonne D. Simultaneous Control of Central and Helical Chiralities: Expedient Helicoselective Synthesis of Dioxa[6]helicenes. J Am Chem Soc 2020; 142:16199-16204. [PMID: 32897709 DOI: 10.1021/jacs.0c07995] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An expedient synthesis of a new family of configurationally stable dioxa[6]helicenes was established using a sequential helicoselective organocatalyzed heteroannulation/eliminative aromatization via enantioenriched fused 2-nitro dihydrofurans featuring both central and helical chiralities. Starting from simple achiral precursors, a broad range of these previously unknown chiral heterocyclic scaffolds were obtained with good efficiency, and their aromatization proceeded with very high enantiopurity retention in most cases.
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Affiliation(s)
- Peng Liu
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Xiaoze Bao
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jean-Valère Naubron
- Aix Marseille Université, CNRS, Centrale Marseille, FSCM, Spectropole, Marseille, France
| | - Sara Chentouf
- Aix Marseille Université, CNRS, Centrale Marseille, FSCM, Spectropole, Marseille, France
| | - Stéphane Humbel
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Nicolas Vanthuyne
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Marion Jean
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Laurent Giordano
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Jean Rodriguez
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Damien Bonne
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
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Chang X, Zhang J, Zhang Q, Guo C. Merging Electrosynthesis and Bifunctional Squaramide Catalysis in the Asymmetric Detrifluoroacetylative Alkylation Reactions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006903] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xihao Chang
- Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
| | - Jiayin Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
| | - Qinglin Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
| | - Chang Guo
- Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China
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