1
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Zhang TT, Xue Q, Zhang WY, Zhong X, Liu YL, Li Y, Li JH. Electrochemical 1,2-Alkylarylation of Styrenes with Malonates and N-Heteroarenes via Direct C(sp 3)-H/C(sp 2)-H Functionalization. J Org Chem 2025; 90:3232-3242. [PMID: 40007314 DOI: 10.1021/acs.joc.4c02803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2025]
Abstract
A general and atom-economical electrochemical dehydrogenative method for the intermolecular 1,2-alkylarylation of styrenes with malonates and nucleophilic N-heteroarenes (including indoles and pyrroles) has been developed. This transformation provides a regioselective route to construct highly valuable 1,1-diarylalkanes enabled by C(sp3)-H/C(sp2)-H functionalization under mild conditions, and H2 is the only theoretical byproduct. Mechanistic studies indicated that the reaction proceeded through the oxidative of the C(sp3)-H bond to generate alkyl radical, radical addition across the C═C bond, single electron oxidation and C(sp2)-H functionalization cascades.
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Affiliation(s)
- Ting-Ting Zhang
- Hunan Engineering Laboratory for Preparation Technology of Poly(vinyl alcohol) (PVA) Fiber Material, Institute of Organic Synthesis, Huaihua University, Huaihua 418000, China
| | - Qi Xue
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Wen-Yu Zhang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xiao Zhong
- Hunan Engineering Laboratory for Preparation Technology of Poly(vinyl alcohol) (PVA) Fiber Material, Institute of Organic Synthesis, Huaihua University, Huaihua 418000, China
| | - Yi-Lin Liu
- Hunan Engineering Laboratory for Preparation Technology of Poly(vinyl alcohol) (PVA) Fiber Material, Institute of Organic Synthesis, Huaihua University, Huaihua 418000, China
| | - Yang Li
- Hunan Engineering Laboratory for Preparation Technology of Poly(vinyl alcohol) (PVA) Fiber Material, Institute of Organic Synthesis, Huaihua University, Huaihua 418000, China
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jin-Heng Li
- Hunan Engineering Laboratory for Preparation Technology of Poly(vinyl alcohol) (PVA) Fiber Material, Institute of Organic Synthesis, Huaihua University, Huaihua 418000, China
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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2
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Lux DM, Lee DJ, Sapkota RR, Giri R. Iron-Mediated Dialkylation of Alkenylarenes with Benzyl Bromides. J Org Chem 2024; 89:16292-16299. [PMID: 38572911 PMCID: PMC11450104 DOI: 10.1021/acs.joc.3c02548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
We disclose a method for the dibenzylation of alkenylarenes with benzyl bromides using iron powder. This reaction generates branched alkyl scaffolds adorned with functionalized aryl rings through the formation of two new C(sp3)-C(sp3) bonds at the vicinal carbons of alkenes. This protocol tolerates electron-rich, electron-neutral, and electron-poor benzyl bromides and alkenylarenes. Mechanistic studies suggest the formation of benzylic radical intermediates as a result of single-electron transfer from the iron, which is intercepted by alkenylarenes.
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Affiliation(s)
- Daniel M Lux
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Daniel J Lee
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Rishi R Sapkota
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ramesh Giri
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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3
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Nishikata T. α-Halocarbonyls as a Valuable Functionalized Tertiary Alkyl Source. ChemistryOpen 2024; 13:e202400108. [PMID: 38989712 PMCID: PMC12056945 DOI: 10.1002/open.202400108] [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: 04/03/2024] [Revised: 05/21/2024] [Indexed: 07/12/2024] Open
Abstract
This review introduces the synthetic organic chemical value of α-bromocarbonyl compounds with tertiary carbons. This α-bromocarbonyl compound with a tertiary carbon has been used primarily only as a radical initiator in atom transfer radical polymerization (ATRP) reactions. However, with the recent development of photo-radical reactions (around 2010), research on the use of α-bromocarbonyl compounds as tertiary alkyl radical precursors became popular (around 2012). As more examples were reported, α-bromocarbonyl compounds were studied not only as radicals but also for their applications in organometallic and ionic reactions. That is, α-bromocarbonyl compounds act as nucleophiles as well as electrophiles. The carbonyl group of α-bromocarbonyl compounds is also attractive because it allows the skeleton to be converted after the reaction, and it is being applied to total synthesis. In our survey until 2022, α-bromocarbonyl compounds can be used to perform a full range of reactions necessary for organic synthesis, including multi-component reactions, cross-coupling, substitution, cyclization, rearrangement, stereospecific reactions, asymmetric reactions. α-Bromocarbonyl compounds have created a new trend in tertiary alkylation, which until then had limited reaction patterns in organic synthesis. This review focuses on how α-bromocarbonyl compounds can be used in synthetic organic chemistry.
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Affiliation(s)
- Takashi Nishikata
- Graduate School of Science and EngineeringYamaguchi University2-16-1 TokiwadaiUbeYamaguchi755-8611Japan
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4
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Pan XH, Hou YP, Shi CX, Wang YP, Niu RQ, Guo L. Intermolecular Regioselective Alkylarylation of Vinylarenes via Photoredox/Nickel Dual Catalysis. Org Lett 2024; 26:7291-7296. [PMID: 39172514 DOI: 10.1021/acs.orglett.4c02205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
A novel photoredox/nickel dual catalytic intermolecular alkylarylation of vinylarenes with tertiary and secondary alkyltrifluoroborates and aryl bromides is described, which affords 1,1-diarylalkane frameworks that are found in various natural products as well as functionalized molecules in good to excellent yield and regioselectivity through a radical relay process. Notably, this redox-neutral reaction could proceed efficiently with good tolerance of various substrates, including a great diversity of commercially available (hetero)aryl bromides, alkyltrifluoroborates, and vinylarenes.
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Affiliation(s)
- Xian-Hua Pan
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Ya-Ping Hou
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Chang-Xin Shi
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Ya-Ping Wang
- Shanghai BIOS Technology Co., Ltd., 659 Maoyuan Road, Fengxian District, Shanghai 201408, China
| | - Rui-Qi Niu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Lei Guo
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
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5
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Guerrero M, Rentería-Gómez Á, Das D, Gutierrez O. Fe-Catalyzed Fluoroalkyl(hetero)arylation of Vinyl Azaarenes: Rapid and Modular Synthesis of Unsymmetrical 1,1-Bis(hetero)arylalkanes. Org Lett 2024; 26:7015-7020. [PMID: 39141436 PMCID: PMC11348425 DOI: 10.1021/acs.orglett.4c02515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 08/05/2024] [Accepted: 08/08/2024] [Indexed: 08/16/2024]
Abstract
In contrast to transition-metal-catalyzed difunctionalization of activated alkenes, selective alkylarylation of vinyl azaarenes is underdeveloped. Consequently, the lack of modular and rapid syntheses of 1,1-bis(hetero)arylalkanes limits their exploration in medicinal chemistry. Herein we report a protocol using commercially available iron salts, bisphosphine ligands, fluoroalkyl halides, and Grignard reagents that enables the selective 1,2-fluoroalkyl(hetero)arylation of vinyl azaarenes. We demonstrate the versatility and robustness of the method through the selective synthesis of a range of unsymmetrical 1,1-bis(hetero)arylalkenes, including pyridine N-oxides, triazoles, pyrazines, carbazoles, indazoles, and 1,2-azaborines. Mechanistic insights from experimental and computational investigations support a radical pathway and provide insights into the role of non-covalent interactions in iron catalysis.
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Affiliation(s)
| | | | - Deborshee Das
- Department of Chemistry, Texas
A&M University, College
Station, Texas 77843, United States
| | - Osvaldo Gutierrez
- Department of Chemistry, Texas
A&M University, College
Station, Texas 77843, United States
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6
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Mukherjee U, Shah JA, Musaev DG, Ngai MY. Harnessing Bromo/Acyloxy Transposition (BrAcT) and Excited-State Copper Catalysis for Styrene Difunctionalization. J Am Chem Soc 2024; 146:21271-21279. [PMID: 39042434 PMCID: PMC11542872 DOI: 10.1021/jacs.4c08984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
1,2-Difunctionalization of styrenes, adding two distinct functional groups across the C═C double bond, has emerged as a powerful tool for enhancing molecular complexity. Herein, we report the development of a regioconvergent β-acyloxylation-α-ketonylation of styrenes through bromo/acyloxy transposition (BrAcT) and excited-state copper catalysis. This approach is amenable to gram-scale synthesis and tolerates a wide range of functional groups and complex molecular frameworks, including derivatives of natural products and marketed drugs. Our experimental and computational studies suggest a unique mechanism featuring a dynamic, ionic BrAcT process and excited-state copper-catalyzed redox reactions. We anticipate that this BrAcT process could serve as a broadly applicable and versatile strategy for β-acyloxylation-α-functionalization of styrenes, creating valuable intermediates for preparing new pharmaceuticals, agrochemicals, and functional materials.
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Affiliation(s)
- Upasana Mukherjee
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47906, United States
| | - Jagrut A Shah
- Department of Chemistry, State University of New York, Stony Brook, New York 11794, United States
| | - Djamaladdin G Musaev
- Cherry L. Emerson Center for Scientific Computation, and Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Ming-Yu Ngai
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47906, United States
- Department of Chemistry, State University of New York, Stony Brook, New York 11794, United States
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7
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Xu J, Liu B. Metal Free Functionalization of Saturated Heterocycles with Vinylarenes and Pyridine Enabled by Photocatalytic Hydrogen Atom Transfer. Chemistry 2024; 30:e202400612. [PMID: 38566284 DOI: 10.1002/chem.202400612] [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: 02/16/2024] [Revised: 03/25/2024] [Accepted: 04/01/2024] [Indexed: 04/04/2024]
Abstract
Saturated heterocycles are important class of structural scaffolds in small-molecule drugs, natural products, and synthetic intermediates. Here, we disclosed a metal free, mild, and scalable functionalization of saturated heterocycles using vinylarenes as a linchpin approach. Key to success of this transformation is the employing of simple and cheap benzophenone as a hydrogen atom transfer (HAT) catalyst. This operationally robust process was used for the making of diverse functionalized saturated heterocycles. Furthermore, aldehydes, alkane, and alcohol have been functionalized under the optimized conditions. The potential pharmaceutical utility of the procedure has also been demonstrated by late-stage functionalization of bioactive natural compounds and pharmaceutical molecules. Initial mechanism studies and control experiments were performed to elucidate the mechanism of the reactions.
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Affiliation(s)
- Junhua Xu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, 330031, People's Republic of China
| | - Bin Liu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, 330031, People's Republic of China
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8
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Pramanik S, Samanta A, Maity S. A two carbon homologation of Friedel-Crafts alkylation enabled by photochemical alkene stitching: modular assembly of cyclolignans. Chem Commun (Camb) 2024; 60:5282-5285. [PMID: 38656305 DOI: 10.1039/d4cc00957f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Herein we report an efficient two-carbon homologated variant of Friedel-Crafts alkylation via photochemical radical alkene stitching. Readily available feedstock alkenes are used as bridges between photogenerated alkyl radicals and arenes, opening a route to γ-aryl-carbonyls for chemo-divergent access to aryltetralone and γ-lactones, a gateway to 2,7'-cyclolignans.
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Affiliation(s)
- Shyamal Pramanik
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, Jharkhand 826004, India.
| | - Apurba Samanta
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, Jharkhand 826004, India.
| | - Soumitra Maity
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, Jharkhand 826004, India.
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9
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Luan YY, Li JY, Shi WY, Zhang Z, Jiao RQ, Chen X, Liu XY, Liang YM. Ruthenium-Catalyzed Difunctionalization of Vinyl Cyclopropanes for Double m-C(sp 2)-H/C-5(sp 3)-H Functionalization. Org Lett 2024; 26:3213-3217. [PMID: 38573591 DOI: 10.1021/acs.orglett.4c00806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
With in-depth research on 1,2-difunctionalization, remote difunctionalization has garnered widespread attention for achieving multifunctionality. Herein, we report a strategy for achieving remote difunctionalization under mild conditions. This strategy exhibited good substrate suitability and functional group tolerance. In addition, the significance of this method is further evidenced by its successful application in scaling up and conducting additional transformations of target compounds. Mechanistic studies showed that a radical might be involved in this process.
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Affiliation(s)
- Yu-Yong Luan
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jin-Ye Li
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wei-Yu Shi
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhe Zhang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Rui-Qiang Jiao
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xi Chen
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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10
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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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11
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Lux DM, Aryal V, Niroula D, Giri R. Nickel-Catalyzed Regioselective Intermolecular Dialkylation of Alkenylarenes: Generation of Two Vicinal C(sp 3 )-C(sp 3 ) Bonds Across Alkenes. Angew Chem Int Ed Engl 2023; 62:e202305522. [PMID: 37316459 PMCID: PMC10528944 DOI: 10.1002/anie.202305522] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/22/2023] [Accepted: 06/14/2023] [Indexed: 06/16/2023]
Abstract
We disclose a Ni-catalyzed regioselective dialkylation reaction of alkenylarenes with α-halocarbonyls and alkylzinc reagents. The reaction produces γ-arylated alkanecarbonyl compounds with the generation of two new C(sp3 )-C(sp3 ) bonds at the vicinal carbons of alkenes. This reaction is effective for the use of primary, secondary and tertiary α-halocarboxylic esters, amides and ketones in conjunction with primary and secondary alkylzinc reagents as the sources of two C(sp3 ) carbons for the dialkylation of terminal and cyclic internal alkenes.
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Affiliation(s)
| | | | | | - Ramesh Giri
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, USA
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12
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Luan YY, Li JY, Gou XY, Shi WY, Ding T, Zhang Z, Chen X, Liu XY, Liang YM. Stereoselective Synthesis of Multisubstituted Alkenes via Ruthenium-Catalyzed Remote Migration Arylation of Nonactivated Olefins. Org Lett 2023. [PMID: 37399076 DOI: 10.1021/acs.orglett.3c01844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Polysubstituted alkenes are an important class of organic intermediates that widely exist in various natural products and drug molecules. Herein, we reported a stereoselective synthesis of multisubstituted alkenes via ruthenium-catalyzed remote migration arylation of nonactivated olefins. This strategy exhibited wide substrate suitability and excellent functional group tolerance. In addition, we demonstrated the indispensable role of two types of ruthenium through mechanism experiments.
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Affiliation(s)
- Yu-Yong Luan
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Jin-Ye Li
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xue-Ya Gou
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Wei-Yu Shi
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Tian Ding
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Zhe Zhang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xi Chen
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
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13
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Zhang Y, Wang H, Jiang D, Sun N, He W, Zhao L, Qin N, Zhu N, Fang Z, Guo K. Photomediated core modification of diaryl dihydrophenzines through three-component alkylarylation of alkenes toward organocatalyzed ATRP. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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14
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yao Z, Yang J, Luo ZL, Ye J, Han J, zhang X, Xu L, Wang P, Shi Q. Visible‐Light Photoredox‐Catalyzed Tandem One‐Pot Construction of C4‐Difluoroalkylated Phthalazin‐1(2H)‐ones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200500] [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)
- zhen yao
- Renmin University of China CHINA
| | | | | | | | | | | | - Lijin Xu
- Renmin University of China CHINA
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15
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Jiang HM, Sun Q, Jiang JP, Qin JH, Ouyang XH, Song RJ. Copper‐Catalyzed Oxidative 1,2‐Alkylarylation of Styrenes with Unactivated C(sp3)‐H Alkanes and Electron‐Rich Aromatics via C(sp3)‐H/C(sp2)‐H Functionalization. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200548] [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]
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16
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Bian KJ, Nemoto D, Kao SC, He Y, Li Y, Wang XS, West JG. Modular Difunctionalization of Unactivated Alkenes through Bio-Inspired Radical Ligand Transfer Catalysis. J Am Chem Soc 2022; 144:11810-11821. [PMID: 35729791 DOI: 10.1021/jacs.2c04188] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Development of visible light-mediated atom transfer radical addition of haloalkanes onto unsaturated hydrocarbons has seen rapid growth in recent years. However, due to its radical chain propagation mechanism, diverse functionality other than the pre-existing (pseudo-)halide on the alkyl halide source cannot be incorporated into target molecules in a one-step, economic fashion. Inspired by the prominent reactivities shown by cytochrome P450 hydroxylase and non-heme iron-dependent oxygenases, we herein report the first modular, dual catalytic difunctionalization of unactivated alkenes via manganese-catalyzed radical ligand transfer (RLT). This RLT elementary step involves a coordinated nucleophile rebounding to a carbon-centered radical to form a new C-X bond in analogy to the radical rebound step in metalloenzymes. The protocol leverages the synergetic cooperation of both a photocatalyst and earth-abundant manganese complex to deliver two radical species in succession to minimally functionalized alkenes, enabling modular diversification of the radical intermediate by a high-valent manganese species capable of delivering various external nucleophiles. A broad scope (97 examples, including drugs/natural product motifs), mild conditions, and excellent chemoselectivity were shown for a variety of substrates and fluoroalkyl fragments. Mechanistic and kinetics studies provide insights into the radical nature of the dual catalytic transformation and support radical ligand transfer (RLT) as a new strategy to deliver diverse functionality selectively to carbon-centered radicals.
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Affiliation(s)
- Kang-Jie Bian
- Department of Chemistry, Rice University, 6500 Main St, Houston, Texas 77030, United States
| | - David Nemoto
- Department of Chemistry, Rice University, 6500 Main St, Houston, Texas 77030, United States
| | - Shih-Chieh Kao
- Department of Chemistry, Rice University, 6500 Main St, Houston, Texas 77030, United States
| | - Yan He
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Yan Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Julian G West
- Department of Chemistry, Rice University, 6500 Main St, Houston, Texas 77030, United States
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17
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Aryal V, Chesley LJ, Niroula D, Sapkota RR, Dhungana RK, Giri R. Ni-Catalyzed Regio- and Stereoselective Alkylarylation of Unactivated Alkenes in γ,δ-Alkenylketimines. ACS Catal 2022; 12:7262-7268. [PMID: 37829145 PMCID: PMC10569404 DOI: 10.1021/acscatal.2c01697] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We disclose a Ni-catalyzed vicinal alkylarylation of unactivated alkenes in γ,δ-alkenylketimines with aryl halides and alkylzinc reagents. The reaction produces γ-C(sp3)-branched δ-arylketones with the construction of two new C(sp3)-C(sp3) and C(sp3)-C(sp2) bonds. Electron-deficient alkenes play crucial dual roles as ligands to stabilize reaction intermediates and to increase catalytic rates for the formation of C(sp3)-C(sp3) bonds. This alkene alkylarylation reaction is also effective for secondary alkylzinc reagents and internal alkenes, and proceeds with a complete regio- and stereocontrol, affording products with up to three contiguous all-carbon all-cis secondary stereocenters.
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Affiliation(s)
- Vivek Aryal
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Lucas J Chesley
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Doleshwar Niroula
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Rishi R Sapkota
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Roshan K Dhungana
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Ramesh Giri
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
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18
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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: 0.7] [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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19
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Luan YY, Gou XY, Shi WY, Liu HC, Chen X, Liang YM. Three-Component Ruthenium-Catalyzed meta-C-H Alkylation of Phenol Derivatives. Org Lett 2022; 24:1136-1140. [PMID: 35084198 DOI: 10.1021/acs.orglett.1c04182] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herein, we realized the multicomponent reactions of phenol derivatives via a six-membered cycloruthenated intermediate for the first time. This strategy exhibited good substrate suitability and functional group tolerance with various phenol derivatives and provided a potential synthetic drug approach. Mechanistic studies showed that a radical might be involved in this process. In addition, the meta alkylated phenol was obtained by further removal of the directing group.
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Affiliation(s)
- Yu-Yong Luan
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xue-Ya Gou
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Wei-Yu Shi
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Hong-Chao Liu
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xi Chen
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
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20
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Gao P, Niu YJ, Yang F, Guo LN, Duan XH. Three-component 1,2-dicarbofunctionalization of alkenes involving alkyl radicals. Chem Commun (Camb) 2021; 58:730-746. [PMID: 34931629 DOI: 10.1039/d1cc05730h] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
1,2-Dicarbofunctionalization of alkenes represents an appealing strategy for chemical bond formation in organic synthesis, which could enable the rapid construction of molecular complexity from simple and readily available starting materials by incorporating two functional groups onto a carbon-carbon double bond in one step. In this field, the dicarbofunctionalization of alkenes with different alkyl radicals in a controlled manner represents an elegant and versatile strategy to access structurally diverse functionalized alkanes, which have witnessed significant progress over the last five years. Due to the importance of alkyl radicals in organic synthesis and medicinal chemistry, this review provides a comprehensive perspective on the development of alkyl radical precursors including electrophilic precursors such as alkyl halides, alkyl peroxides, alkyl NHP esters, cycloketone oxime esters, and Katritzky pyridinium salts, and nucleophilic precursors such as alkyl acids, alkyl oxalates, alkylborates, alkylsilicates, and unactivated hydrocarbons, which generate alkyl radicals by photocatalysis or transition metal catalysis to engage in dicarbofunctionalization under oxidative reaction conditions, redox-neutral conditions, or reductive conditions. The mechanisms of these dicarbofunctionalization reactions have also been discussed in detail.
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Affiliation(s)
- Pin Gao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Yue-Jie Niu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Fan Yang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
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21
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Dhungana RK, Sapkota RR, Wickham LM, Niroula D, Shrestha B, Giri R. Ni‐Catalyzed Arylbenzylation of Alkenylarenes: Kinetic Studies Reveal Autocatalysis by ZnX
2
**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110459] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Roshan K. Dhungana
- Department of Chemistry Pennsylvania State University University Park Pennsylvania 16802 USA
| | - Rishi R. Sapkota
- Department of Chemistry Pennsylvania State University University Park Pennsylvania 16802 USA
| | - Laura M. Wickham
- Department of Chemistry Pennsylvania State University University Park Pennsylvania 16802 USA
| | - Doleshwar Niroula
- Department of Chemistry Pennsylvania State University University Park Pennsylvania 16802 USA
| | - Bijay Shrestha
- Current address: Department of Chemistry and Biochemistry University of California Los Angeles CA 90095 USA
| | - Ramesh Giri
- Department of Chemistry Pennsylvania State University University Park Pennsylvania 16802 USA
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22
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Dhungana RK, Sapkota RR, Wickham LM, Niroula D, Shrestha B, Giri R. Ni-Catalyzed Arylbenzylation of Alkenylarenes: Kinetic Studies Reveal Autocatalysis by ZnX 2 *. Angew Chem Int Ed Engl 2021; 60:22977-22982. [PMID: 34427992 PMCID: PMC8490319 DOI: 10.1002/anie.202110459] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Indexed: 11/08/2022]
Abstract
We report a Ni-catalyzed regioselective arylbenzylation of alkenylarenes with benzyl halides and arylzinc reagents. The reaction furnishes differently substituted 1,1,3-triarylpropyl structures that are reminiscent of the cores of oligoresveratrol natural products. The reaction is also compatible for the coupling of internal alkenes, secondary benzyl halides and variously substituted arylzinc reagents. Kinetic studies reveal that the reaction proceeds with a rate-limiting single-electron-transfer process and is autocatalyzed by in-situ-generated ZnX2 . The reaction rate is amplified by a factor of three through autocatalysis upon addition of ZnX2 .
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Affiliation(s)
| | | | | | | | | | - Ramesh Giri
- Department of Chemistry Pennsylvania State University, University Park, Pennsylvania 16802, USA
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23
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Yu WQ, Xie J, Chen Z, Xiong BQ, Liu Y, Tang KW. Visible-Light-Induced Transition-Metal-Free Nitrogen-Centered Radical Strategy for the Synthesis of 2-Acylated 9 H-Pyrrolo[1,2- a]indoles. J Org Chem 2021; 86:13720-13733. [PMID: 34523335 DOI: 10.1021/acs.joc.1c01834] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A convenient and efficient visible-light-induced tandem acylation/cyclization of N-propargylindoles with aryl- or alkyl-substituted acyl oxime esters for the synthesis of 2-acyl-substituted 9H-pyrrolo[1,2-a]indoles under transition-metal-free conditions, which proceeds via nitrogen-centered radical-mediated cleavage of the C-C σ-bond in acyl oxime esters, is established. The aryl or alkyl acyl radicals, which come from acyl oxime esters, attack the C-C triple bonds in N-propargylindoles and then go through intramolecular cyclization/isomerization.
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Affiliation(s)
- Wen-Qin Yu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Jun Xie
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Zan Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
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24
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Dhungana RK, Aryal V, Niroula D, Sapkota RR, Lakomy MG, Giri R. Nickel‐Catalyzed Regioselective Alkenylarylation of γ,δ‐Alkenyl Ketones via Carbonyl Coordination. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Roshan K. Dhungana
- Department of Chemistry Pennsylvania State University University Park PA 16802 USA
| | - Vivek Aryal
- Department of Chemistry Pennsylvania State University University Park PA 16802 USA
| | - Doleshwar Niroula
- Department of Chemistry Pennsylvania State University University Park PA 16802 USA
| | - Rishi R. Sapkota
- Department of Chemistry Pennsylvania State University University Park PA 16802 USA
| | - Margaret G. Lakomy
- Department of Chemistry Pennsylvania State University University Park PA 16802 USA
| | - Ramesh Giri
- Department of Chemistry Pennsylvania State University University Park PA 16802 USA
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25
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Dhungana RK, Aryal V, Niroula D, Sapkota RR, Lakomy MG, Giri R. Nickel-Catalyzed Regioselective Alkenylarylation of γ,δ-Alkenyl Ketones via Carbonyl Coordination. Angew Chem Int Ed Engl 2021; 60:19092-19096. [PMID: 34115911 PMCID: PMC8373804 DOI: 10.1002/anie.202104871] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/27/2021] [Indexed: 11/07/2022]
Abstract
We disclose a nickel-catalyzed reaction, which enabled us to difunctionalize unactivated γ,δ-alkenes in ketones with alkenyl triflates and arylboronic esters. The reaction was made feasible by the use of 5-chloro-8-hydroxyquinoline as a ligand along with NiBr2 ⋅DME as a catalyst and LiOtBu as base. The reaction proceeded with a wide range of cyclic, acyclic, endocyclic and exocyclic alkenyl ketones, and electron-rich and electron-deficient arylboronate esters. The reaction also worked with both cyclic and acyclic alkenyl triflates. Control experiments indicate that carbonyl coordination is required for the reaction to proceed.
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Affiliation(s)
- Roshan K. Dhungana
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Vivek Aryal
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Doleshwar Niroula
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Rishi R. Sapkota
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Margaret G. Lakomy
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Ramesh Giri
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, USA
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26
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27
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Liu J, Huang HL, Wang C, Li Y, Li H, Hu H, He S, Tang H, Gao F. Visible-light-driven cascade radical cyclization toward the synthesis of α-carbonyl alkyl-substituted benzimidazo[2,1-a]isoquinolin-6(5H)-one derivatives. RSC Adv 2021; 11:29372-29375. [PMID: 35479569 PMCID: PMC9040576 DOI: 10.1039/d1ra05936j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 08/24/2021] [Indexed: 11/05/2022] Open
Abstract
A visible-light-driven cascade radical cyclization process of N-methacryloyl-2-phenylbenzimidazole has been established with α-carbonyl alkyl bromide. This protocol provides an efficient and practical method for the synthesis of various α-carbonyl alkyl-substituted benzimidazo[2,1-α]isoquinolin-6(5H)-ones in outstanding yields, mild reaction conditions and excellent functional group tolerance. A visible-light-driven radical cyclization method has been developed for synthesis of α-carbonyl alkyl-substituted benzimidazo[2,1-a]isoquinolin-6(5H)-ones. This reaction is characterized by excellent yields and good functional group tolerance.![]()
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Affiliation(s)
- Jing Liu
- Department of Chemistry, College of Sciences, Shanghai University, No. 99 Shangda Road, Shanghai 200444, China
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Hong-Li Huang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong, 252059, China
| | - Chen Wang
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Yinghua Li
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Huaqiang Li
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Honggang Hu
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Shipeng He
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Hua Tang
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Fei Gao
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
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28
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Liu Y, Chen Z, Chen P, Xiong B, Xie J, Liu A, Liang Y, Tang K. Visible-Light-Catalyzed Tandem Cyanoalkylsulfonylation/ Cyclization of Alkynes. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202102051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Chen L, Jin S, Gao J, Liu T, Shao Y, Feng J, Wang K, Lu T, Du D. N-Heterocyclic Carbene/Magnesium Cocatalyzed Radical Relay Assembly of Aliphatic Keto Nitriles. Org Lett 2020; 23:394-399. [DOI: 10.1021/acs.orglett.0c03883] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Lei Chen
- School of Science, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Shiyi Jin
- School of Science, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Jian Gao
- School of Science, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Tongtong Liu
- School of Science, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Yuebo Shao
- School of Science, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Jie Feng
- School of Science, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Kangyi Wang
- School of Science, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Tao Lu
- School of Science, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Ding Du
- School of Science, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
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30
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Difunctionalization of Alkenes and Alkynes via Intermolecular Radical and Nucleophilic Additions. MOLECULES (BASEL, SWITZERLAND) 2020; 26:molecules26010105. [PMID: 33379397 PMCID: PMC7795514 DOI: 10.3390/molecules26010105] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/24/2020] [Accepted: 12/24/2020] [Indexed: 12/31/2022]
Abstract
Popular and readily available alkenes and alkynes are good substrates for the preparation of functionalized molecules through radical and/or ionic addition reactions. Difunctionalization is a topic of current interest due to its high efficiency, substrate versatility, and operational simplicity. Presented in this article are radical addition followed by oxidation and nucleophilic addition reactions for difunctionalization of alkenes or alkynes. The difunctionalization could be accomplished through 1,2-addition (vicinal) and 1,n-addition (distal or remote) if H-atom or group-transfer is involved in the reaction process. A wide range of moieties, such as alkyl (R), perfluoroalkyl (Rf), aryl (Ar), hydroxy (OH), alkoxy (OR), acetatic (O2CR), halogenic (X), amino (NR2), azido (N3), cyano (CN), as well as sulfur- and phosphorous-containing groups can be incorporated through the difunctionalization reactions. Radicals generated from peroxides or single electron transfer (SET) agents, under photoredox or electrochemical reactions are employed for the reactions.
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31
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Dhungana RK, Sapkota RR, Wickham LM, Niroula D, Giri R. Ni-Catalyzed Regioselective 1,2-Dialkylation of Alkenes Enabled by the Formation of Two C(sp 3)-C(sp 3) Bonds. J Am Chem Soc 2020; 142:20930-20936. [PMID: 33271014 PMCID: PMC7953840 DOI: 10.1021/jacs.0c09778] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We disclose a Ni-catalyzed vicinal difunctionalization of alkenes with benzyl halides and alkylzinc reagents, which produces products with two new alkyl-alkyl bonds. This alkene dialkylation is effective in combining secondary benzyl halides and secondary alkylzinc reagents with internal alkenes, which furnishes products with three contiguous all-carbon secondary stereocenters. The products can be readily elaborated to access complex tetralene, benzosuberene, and bicyclodecene cores. The reaction also features as the most efficient alkene difunctionalization process to date with catalyst loadings down to 500 ppm and the catalytic turnover number (TON) and turnover frequency (TOF) registering up to 2 × 103 and 165 h-1 at rt, respectively.
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Affiliation(s)
- Roshan K Dhungana
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Rishi R Sapkota
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Laura M Wickham
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Doleshwar Niroula
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ramesh Giri
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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32
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Su YL, Tram L, Wherritt D, Arman H, Griffith WP, Doyle MP. α-Amino Radical-Mediated Diverse Difunctionalization of Alkenes: Construction of C–C, C–N, and C–S Bonds. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04243] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yong-Liang Su
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Linh Tram
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Daniel Wherritt
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Hadi Arman
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Wendell P. Griffith
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Michael P. Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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33
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Luo S, Min M, Wu Y, Jiang S, Xiao Y, Song R, Li J. Synthesis of Bulky 1,1‐Diarylalkanes by Copper‐Catalyzed 1,2‐Alkylarylation of Styrenes with
α
‐Carbonyl Alkyl Bromides and Arenes involving C−H Functionalization. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shu‐Zheng Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Man‐Yi Min
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Yan‐Chen Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Shuai‐Shuai Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Yu‐Ting Xiao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Ren‐Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Jin‐Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
- State Key Laboratory of Chemo/Biosensing and ChemometricsHunan University Changsha 410082 People's Republic of China
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34
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Wang HY, Zhong LJ, Lv GF, Li Y, Li JH. Photocatalytic dual decarboxylative alkenylation mediated by triphenylphosphine and sodium iodide. Org Biomol Chem 2020; 18:5589-5593. [PMID: 32677630 DOI: 10.1039/d0ob01242d] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
An efficient photocatalytic dual decarboxylative alkenylation of α,β-unsaturated carboxylic acids and alkyl N-hydroxyphthalimide (NHP) esters mediated by triphenylphosphine and sodium iodide has been developed. This protocol proceeds under 456-nanometer irradiation by visible blue light in the absence of transition metals or organic dye based photoredox catalysts. The reaction is successfully applied to a wide range of redox-active esters derived from aliphatic carboxylic acids (1°, 2° and 3°) and α-amino acids, enabling transformations of diverse α,β-unsaturated carboxylic acids to α,β-alkylated styrenes with high efficiency and excellent selectivity under mild conditions.
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Affiliation(s)
- Hong-Yu Wang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
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35
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Li S, Chen Q, Li W, Gu G, Zhang J. Visible Light Driven Copper(I) Catalyzed Oxyamination of Electron Deficient Alkenes
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sanliang Li
- Department of Chemistry, Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Qiaoyu Chen
- Department of Chemistry, Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Wenbo Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
| | - Guangxin Gu
- Department of Material Science, Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Junliang Zhang
- Department of Chemistry, Fudan University 2005 Songhu Road Shanghai 200438 China
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36
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Ma JW, Chen X, Zhou ZZ, Liang YM. Visible-Light-Induced Palladium-Catalyzed Carbocyclization of Unactivated Alkyl Bromides with Alkenes Involving C–I or C–B Coupling. J Org Chem 2020; 85:9301-9312. [DOI: 10.1021/acs.joc.0c00077] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jun-Wei Ma
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xi Chen
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Zhao-Zhao Zhou
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
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37
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Wei X, Shu W, García-Domínguez A, Merino E, Nevado C. Asymmetric Ni-Catalyzed Radical Relayed Reductive Coupling. J Am Chem Soc 2020; 142:13515-13522. [DOI: 10.1021/jacs.0c05254] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xiaofeng Wei
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, CH 8057, Switzerland
| | - Wei Shu
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, CH 8057, Switzerland
| | - Andrés García-Domínguez
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, CH 8057, Switzerland
| | - Estíbaliz Merino
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, CH 8057, Switzerland
| | - Cristina Nevado
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, CH 8057, Switzerland
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38
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Shekhar KC, Dhungana RK, Khanal N, Giri R. Nickel-Catalyzed α-Carbonylalkylarylation of Vinylarenes: Expedient Access to γ,γ-Diarylcarbonyl and Aryltetralone Derivatives. Angew Chem Int Ed Engl 2020; 59:8047-8051. [PMID: 32059062 PMCID: PMC7274890 DOI: 10.1002/anie.201913435] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Indexed: 11/10/2022]
Abstract
We report a Ni-catalyzed regioselective α-carbonylalkylarylation of vinylarenes with α-halocarbonyl compounds and arylzinc reagents. The reaction works with primary, secondary, and tertiary α-halocarbonyl molecules, and electronically varied arylzinc reagents. The reaction generates γ,γ-diarylcarbonyl derivatives with α-secondary, tertiary, and quaternary carbon centers. The products can be readily converted to aryltetralones, including a precursor to Zoloft, an antidepressant drug.
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Affiliation(s)
- KC Shekhar
- Department of Chemistry and Chemical Biology, University of New Mexico, 300 Terrace St. NE, Albuquerque, NM, USA
| | - Roshan K. Dhungana
- Department of Chemistry, Pennsylvania State University, University Park, PA, 16802, USA
| | - Namrata Khanal
- Department of Chemistry and Chemical Biology, University of New Mexico, 300 Terrace St. NE, Albuquerque, NM, USA
| | - Ramesh Giri
- Department of Chemistry, Pennsylvania State University, University Park, PA, 16802, USA
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39
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KC S, Dhungana RK, Khanal N, Giri R. Nickel‐Catalyzed α‐Carbonylalkylarylation of Vinylarenes: Expedient Access to γ,γ‐Diarylcarbonyl and Aryltetralone Derivatives. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913435] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Shekhar KC
- Department of Chemistry and Chemical Biology University of New Mexico 300 Terrace St. NE Albuquerque NM USA
| | - Roshan K. Dhungana
- Department of Chemistry Pennsylvania State University University Park PA 16802 USA
| | - Namrata Khanal
- Department of Chemistry and Chemical Biology University of New Mexico 300 Terrace St. NE Albuquerque NM USA
| | - Ramesh Giri
- Department of Chemistry Pennsylvania State University University Park PA 16802 USA
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40
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Liu J, Wu S, Yu J, Lu C, Wu Z, Wu X, Xue X, Zhu C. Polarity Umpolung Strategy for the Radical Alkylation of Alkenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915837] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jige Liu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Shuo Wu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Jiajia Yu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Chenxi Lu
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Zhen Wu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xiao‐Song Xue
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
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41
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Liu J, Wu S, Yu J, Lu C, Wu Z, Wu X, Xue X, Zhu C. Polarity Umpolung Strategy for the Radical Alkylation of Alkenes. Angew Chem Int Ed Engl 2020; 59:8195-8202. [DOI: 10.1002/anie.201915837] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/10/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Jige Liu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Shuo Wu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Jiajia Yu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Chenxi Lu
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Zhen Wu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xiao‐Song Xue
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
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42
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Huang HL, Du JY, Li QL, Gao F, Ma CL. Visible-Light-Promoted Cascade Radical Cyclization: Synthesis of Chroman-4-ones and Dihydroquinolin-4-ones. J Org Chem 2020; 85:3963-3972. [PMID: 32037828 DOI: 10.1021/acs.joc.9b03253] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel visible-light photoredox catalysis protocol for the effective and efficient synthesis of 3-substituted chroman-4-ones and 2,3-dihydroquinolin-4(1H)-ones via tandem radical addition/cyclization of alkenyl aldehydes has been described. This reaction features a broad substrate scope, mild reaction conditions, and good functional group tolerance character.
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Affiliation(s)
- Hong-Li Huang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Ji-Yuan Du
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Qian-Li Li
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Fei Gao
- Institude of Translation Medicine, Shanghai University, Shanghai, 2004444, China
| | - Chun-Lin Ma
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
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43
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Niroula D, Sapkota RR, Dhungana RK, Shrestha B, Giri R. An Expedient Route to 9-arylmethylanthracene Derivatives via Tandem Ni-catalyzed Alkene Dicarbofunctionalization and Acid-promoted Cyclization-aromatization. Isr J Chem 2020; 60:424-428. [PMID: 34045772 PMCID: PMC8153705 DOI: 10.1002/ijch.201900158] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 01/21/2020] [Indexed: 12/15/2022]
Abstract
We report a nickel-catalyzed one pot synthesis of 9-arylmethylanthracene motifs, which find applications in medicinal and material chemistry. In this synthesis, we apply three component alkene dicarbofunctionalization of 2-vinylaldimines with aryl iodides and arylzinc reagent to generate a 1,1,2-diarylethyl scaffold, which then undergoes an acidpromoted cyclization followed by aromatization to furnish 9-arylmethylanthracene cores. With the new method, a number of differently-substituted 9-arylmethylanthracene derivatives can be synthesized in good yields.
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Affiliation(s)
- Doleshwar Niroula
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Rishi R Sapkota
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Roshan K Dhungana
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Bijay Shrestha
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Chemistry, University of Illinois, 600 South, Mathews Avenue, Urbana, Illinois 61801, United States
| | - Ramesh Giri
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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44
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Liu Y, Chen Z, Wang QL, Chen P, Xie J, Xiong BQ, Zhang PL, Tang KW. Visible Light-Catalyzed Cascade Radical Cyclization of N-Propargylindoles with Acyl Chlorides for the Synthesis of 2-Acyl-9H-pyrrolo[1,2-a]indoles. J Org Chem 2020; 85:2385-2394. [DOI: 10.1021/acs.joc.9b03090] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Zan Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Qiao-Lin Wang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Pu Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Jun Xie
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Pan-Liang Zhang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
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45
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Jiang SS, Xiao YT, Wu YC, Luo SZ, Song RJ, Li JH. Manganese(iii)-promoted tandem phosphinoylation/cyclization of 2-arylindoles/2-arylbenzimidazoles with disubstituted phosphine oxides. Org Biomol Chem 2020; 18:4843-4847. [PMID: 32608447 DOI: 10.1039/d0ob00877j] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A simple and practical method for the synthesis of phosphoryl-substituted indolo[2,1-a]isoquinolin-6(5H)-ones and benzimidazo[2,1-a]isoquinolin-6(5H)-ones through manganese(iii)-promoted tandem phosphinoylation/cyclization of 2-arylindoles or 2-arylbenzimidazoles with disubstituted phosphine oxides was developed. In this transformation, new C-P bond and C-C bond were constructed simultaneously under silver-free conditions, exhibiting a broad substrate scope. It was noted that not only diarylphosphine oxides but also dialkyl and arylalkyl-phosphine oxides were compatible with the conditions.
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Affiliation(s)
- Shuai-Shuai Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Yu-Ting Xiao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Yan-Chen Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Shu-Zheng Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
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46
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Dong DQ, Yang H, Shi JL, Si WJ, Wang ZL, Xu XM. Promising reagents for difluoroalkylation. Org Chem Front 2020. [DOI: 10.1039/d0qo00567c] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review describes recent advances in difluoroalkylation reactions using different substrates.
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Affiliation(s)
- Dao-Qing Dong
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Huan Yang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Jun-Lian Shi
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Wen-Jia Si
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Zu-Li Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Xin-Ming Xu
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
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47
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Zhu X, Su M, Zhang Q, Li Y, Bao H. Cu-Catalyzed Alkylarylation of Vinylarenes with Masked Alkyl Electrophiles. Org Lett 2019; 22:620-625. [PMID: 31855441 DOI: 10.1021/acs.orglett.9b04392] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaotao Zhu
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, PR China
- University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Muqiao Su
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, PR China
| | - Qi Zhang
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, PR China
| | - Yajun Li
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, PR China
| | - Hongli Bao
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, PR China
- University of Chinese Academy of Sciences, Beijing 100049, PR China
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48
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Wang X, Han YF, Ouyang XH, Song RJ, Li JH. The photoredox alkylarylation of styrenes with alkyl N-hydroxyphthalimide esters and arenes involving C-H functionalization. Chem Commun (Camb) 2019; 55:14637-14640. [PMID: 31746852 DOI: 10.1039/c9cc07494e] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The In(OTf)3-promoted three-component photoredox alkylarylation of styrenes with alkyl NHP esters and arenes to access alkylated arene derivatives through C-C bond cleavage and C-H functionalization is reported. By utilizing visible-light photoredox catalysis, alkyl N-hydroxyphthalimide esters serving as alkyl carbon-centered radicals and a wide range of arenes (e.g., indoles, pyrrole, and electron-rich arenes) as nucleophiles were used to enable the introduction of various alkyl groups and aryl groups across the C[double bond, length as m-dash]C bonds with excellent selectivity and functional group tolerance.
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Affiliation(s)
- Xia Wang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Ya-Fei Han
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China. and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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49
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Fang XX, Wang PF, Yi W, Chen W, Lou SC, Liu GQ. Visible-Light-Mediated Oxidative Coupling of Vinylarenes with Bromocarboxylates Leading to γ-Ketoesters. J Org Chem 2019; 84:15677-15684. [DOI: 10.1021/acs.joc.9b02310] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xing-Xiao Fang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
| | - Peng-Fei Wang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
| | - Wei Yi
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
| | - Wei Chen
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
| | - Sheng-Chun Lou
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
| | - Gong-Qing Liu
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
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50
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Dhungana RK, KC S, Basnet P, Aryal V, Chesley LJ, Giri R. Ni(I)-Catalyzed β,δ-Vinylarylation of γ,δ-Alkenyl α-Cyanocarboxylic Esters via Contraction of Transient Nickellacycles. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03574] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Roshan K. Dhungana
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Shekhar KC
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Prakash Basnet
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Vivek Aryal
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Lucas J. Chesley
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ramesh Giri
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
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