1
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Li Y, Hou J, Zhang P, Dai P, Gu YC, Xia Q, Zhang W. Electron Donor-Acceptor Complex Driven Photocatalyst-Free Trifluoromethylation of Heterocycles. Chemistry 2024; 30:e202400237. [PMID: 38556465 DOI: 10.1002/chem.202400237] [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: 01/19/2024] [Revised: 03/16/2024] [Accepted: 03/30/2024] [Indexed: 04/02/2024]
Abstract
Heterocyclic trifluoromethylation is efficiently initiated through a photochemical reaction utilizing an electron donor-acceptor (EDA) complex, proceeding smoothly without the use of photocatalysts, transition-metal catalysts, or additional oxidants. This method has been optimized through extensive experimentation, demonstrating its versatility and efficacy across various substrates, including quinoxalinones, coumarins, and indolones. Notably, this approach enables the practical synthesis of trifluoromethylated quinoxalinones on a gram scale. Mechanistic investigations that incorporate radical trapping and ultraviolet/visible spectroscopy, confirmed the formation of the an EDA complex and elucidated the reaction pathways. This study highlights the crucial role of EDA photoactivation in trifluoromethylation, significantly expanding the application scope of EDA complexes in chemical synthesis.
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Affiliation(s)
- Yufei Li
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jie Hou
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Pei Zhang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Peng Dai
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yu-Cheng Gu
- Syngenta Jealott's Hill International Research Centre, RG42 6EY, Bracknell, United Kingdom (UK
| | - Qing Xia
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Weihua Zhang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
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2
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Fernandes AJ, Giri R, Houk KN, Katayev D. Review and Theoretical Analysis of Fluorinated Radicals in Direct C Ar-H Functionalization of (Hetero)arenes. Angew Chem Int Ed Engl 2024; 63:e202318377. [PMID: 38282182 DOI: 10.1002/anie.202318377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 01/30/2024]
Abstract
We highlight key contributions in the field of direct radical CAr- H (hetero)aromatic functionalization involving fluorinated radicals. A compilation of Functional Group Transfer Reagents and their diverse activation mechanisms leading to the release of radicals are discussed. The substrate scope for each radical is analyzed and classified into three categories according to the electronic properties of the substrates. Density functional theory computational analysis provides insights into the chemical reactivity of several fluorinated radicals through their electrophilicity and nucleophilicity parameters. Theoretical analysis of their reduction potentials also highlights the remarkable correlation between electrophilicity and oxidizing ability. It is also established that highly fluorinated radicals (e.g. ⋅OCF3) are capable of engaging in single-electron transfer (SET) processes rather than radical addition, which is in good agreement with experimental literature data. A reactivity scale, based on activation barrier of addition of these radicals to benzene is also elaborated using the high accuracy DLPNO-(U)CCSD(T) method.
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Affiliation(s)
- Anthony J Fernandes
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Rahul Giri
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Kendall N Houk
- Department of Chemistry and Biochemistry, University of California, 90095, Los Angeles, California, United States
| | - Dmitry Katayev
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
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3
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Purushotam, Bera A, Banerjee D. Recent advances on non-precious metal-catalysed fluorination, difluoromethylation, trifluoromethylation, and perfluoroalkylation of N-heteroarenes. Org Biomol Chem 2023; 21:9298-9315. [PMID: 37855147 DOI: 10.1039/d3ob01132a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
This review highlights the recent advances, from 2015 to 2023, on the introduction of organo-fluorine derivatives at the N-heteroarene core. Notable features considering new technologies based on organofluorine compounds such as: (i) approaches based on non-precious metal catalysis (Fe, Co, Mn, Ni, etc.), (ii) the development of new strategies using non-precious metal-catalysts for the introduction of organo-fluorinine derivatives using N-heterocycles with one or more heteroatoms, (iii) newer reagents for fluorination, difluoromethylation, trifluoromethylation, or perfluoroalkylation of N-heteroarenes using different approaches, (iv) mechanistic studies on various catalytic transformations, as and when required, and (v) the synthetic applications of various bio-active organo-fluorine compounds, including post-synthetic drug derivatization, are discussed.
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Affiliation(s)
- Purushotam
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Atanu Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
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4
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Zhou C, Liu Y, Luo Q, Zhang Y, Zhou J, Zhang H, Liu J. Microwave-accelerated cross-dehydrogenative-coupling (CDC) of N-(quinolin-8-yl)amides with acetone/acetonitrile under metal-free conditions. RSC Adv 2023; 13:21231-21235. [PMID: 37456538 PMCID: PMC10340454 DOI: 10.1039/d3ra03651k] [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: 05/31/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023] Open
Abstract
A highly selective remote C(sp3)-H acetonation of N-(quinolin-8-yl)amide scaffolds at the C5-position under microwave irradiation has been developed. In the absence of a transition-metal-catalyst, benzoyl peroxide (BPO)-promoted cross-dehydrogenation coupling (CDC) of N-(quinolin-8-yl)amides with acetone/acetonitrile occurred smoothly to generate the corresponding 5-acetonated/acetonitriled N-(quinolin-8-yl)amides in good yields. The transformation is operationally simple, rapid, easily scaled-up to the gram scale, and shows a broad substrate scope.
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Affiliation(s)
- Chao Zhou
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Yunwei Liu
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Qi Luo
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Yicheng Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Jingwen Zhou
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Haoyu Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Jie Liu
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
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5
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Baguia H, Evano G. Direct Perfluoroalkylation of C−H Bonds in (Hetero)arenes. Chemistry 2022; 28:e202200975. [DOI: 10.1002/chem.202200975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Hajar Baguia
- 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
| | - 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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6
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Li HP, He XH, Peng C, Li JL, Han B. A straightforward access to trifluoromethylated natural products through late-stage functionalization. Nat Prod Rep 2022; 40:988-1021. [DOI: 10.1039/d2np00056c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This review summarizes the applications of late-stage strategies in the direct trifluoromethylation of natural products in the past ten years, with particular emphasis on the reaction model of each method.
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Affiliation(s)
- He-Ping Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xiang-Hong He
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jun-Long Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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7
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Zheng K, Zhou E, Zhang L, Zhang L, Yu W, Xu H, Shen C. Catalyst controlled remote C H activation of 8-aminoquinolines with NFSI for C N versus C F coupling. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2021.106336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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8
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Liu D, Xia Z, Xiao Y, Yu Y, Yu L, Song Z, Wu Q, Zhang J, Tan Z. Transition‐Metal‐Free Cross‐Dehydrogenative Couplings of 8‐Aminoquinoline Amides at C5 Position with Acetonitrile, Ethers or Acetone. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Da Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
- Kamp Pharmaceuticals CO., LTD. Changde 415900 P. R. China
| | - Zhen Xia
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
| | - Yuanjiu Xiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
| | - Yongqi Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
| | - Lin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
| | - Zenan Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
| | - Qianlong Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
| | - Junhui Zhang
- Kamp Pharmaceuticals CO., LTD. Changde 415900 P. R. China
| | - Ze Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
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9
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Wang K, Hou J, Lv Y, Wei T, Bai R, Xie Y. Electrolyte‐Triggered C5‐Selective Trifluoromethylation and Halogenation of 8‐Aminoquinoline Derivatives. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000650] [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)
- Kai Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology 310014 Hangzhou P. R. China
| | - Jiahao Hou
- College of Pharmaceutical Science Zhejiang University of Technology 310014 Hangzhou P. R. China
| | - Yangjing Lv
- College of Pharmaceutical Science Zhejiang University of Technology 310014 Hangzhou P. R. China
| | - Tingting Wei
- College of Pharmaceutical Science Zhejiang University of Technology 310014 Hangzhou P. R. China
| | - Renren Bai
- College of Pharmaceutical Science Zhejiang University of Technology 310014 Hangzhou P. R. China
| | - Yuanyuan Xie
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology 310014 Hangzhou P. R. China
- College of Pharmaceutical Science Zhejiang University of Technology 310014 Hangzhou P. R. China
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10
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Wang K, Hou J, Wei T, Zhang C, Bai R, Xie Y. A metal-free picolinamide assisted electrochemical ortho-trifluoromethylation of arylamines. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Zhang F, Wang X, Zhou Y, Shi H, Feng Z, Ma J, Marek I. Remote Fluorination and Fluoroalkyl(thiol)ation Reactions. Chemistry 2020; 26:15378-15396. [DOI: 10.1002/chem.202003416] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Fa‐Guang Zhang
- Department of Chemistry Tianjin Key Laboratory of Molecular Optoelectronic Sciences Frontiers Science Center for Synthetic Biology (Ministry of Education), and Tianjin Collaborative Innovation Center of Chemical Science & Engineering Tianjin University Tianjin 300072 China
| | - Xue‐Qi Wang
- Department of Chemistry Tianjin Key Laboratory of Molecular Optoelectronic Sciences Frontiers Science Center for Synthetic Biology (Ministry of Education), and Tianjin Collaborative Innovation Center of Chemical Science & Engineering Tianjin University Tianjin 300072 China
| | - Yin Zhou
- Department of Chemistry Tianjin Key Laboratory of Molecular Optoelectronic Sciences Frontiers Science Center for Synthetic Biology (Ministry of Education), and Tianjin Collaborative Innovation Center of Chemical Science & Engineering Tianjin University Tianjin 300072 China
| | - Hong‐Song Shi
- Department of Chemistry Tianjin Key Laboratory of Molecular Optoelectronic Sciences Frontiers Science Center for Synthetic Biology (Ministry of Education), and Tianjin Collaborative Innovation Center of Chemical Science & Engineering Tianjin University Tianjin 300072 China
| | - Zhe Feng
- Department of Chemistry Tianjin Key Laboratory of Molecular Optoelectronic Sciences Frontiers Science Center for Synthetic Biology (Ministry of Education), and Tianjin Collaborative Innovation Center of Chemical Science & Engineering Tianjin University Tianjin 300072 China
| | - Jun‐An Ma
- Department of Chemistry Tianjin Key Laboratory of Molecular Optoelectronic Sciences Frontiers Science Center for Synthetic Biology (Ministry of Education), and Tianjin Collaborative Innovation Center of Chemical Science & Engineering Tianjin University Tianjin 300072 China
| | - Ilan Marek
- Schulich Faculty of Chemistry Technion-Israel Institute of Technology Haifa 3200009 Israel
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12
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Wen C, Zhong R, Qin Z, Zhao M, Li J. Regioselective remote C5 cyanoalkoxylation and cyanoalkylation of 8-aminoquinolines with azobisisobutyronitrile. Chem Commun (Camb) 2020; 56:9529-9532. [PMID: 32687138 DOI: 10.1039/d0cc00014k] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The efficient regioselective C-H cyanoalkoxylation and cyanoalkylation of 8-aminoquinoline derivatives at the C5 position have been achieved under O2 and N2 atmospheres, respectively. Using 2,2'-azobisisobutyronitrile (AIBN) as a radical precursor, the protocols afforded the corresponding products in moderate to good yields with broad substrate generality through Cu(OAc)2 or NiSO4 catalysis. Furthermore, the single electron transfer (SET) mechanism was proposed via a radical coupling pathway.
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Affiliation(s)
- Chunxia Wen
- Department of Organic Chemistry, College of Chemistry, Jilin University, Jiefang Road 2519, Changchun, 130023, China.
| | - Ronglin Zhong
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun, 130023, China
| | - Zengxin Qin
- Department of Organic Chemistry, College of Chemistry, Jilin University, Jiefang Road 2519, Changchun, 130023, China.
| | - Mengfei Zhao
- Department of Organic Chemistry, College of Chemistry, Jilin University, Jiefang Road 2519, Changchun, 130023, China.
| | - Jizhen Li
- Department of Organic Chemistry, College of Chemistry, Jilin University, Jiefang Road 2519, Changchun, 130023, China.
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13
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Remote C–H Functionalization of 8-Aminoquinoline Ring. Top Curr Chem (Cham) 2020; 378:42. [DOI: 10.1007/s41061-020-00303-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 03/31/2020] [Indexed: 12/13/2022]
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14
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Li X, Shi X, Li X, Shi D. Recent advances in transition-metal-catalyzed incorporation of fluorine-containing groups. Beilstein J Org Chem 2019; 15:2213-2270. [PMID: 31598178 PMCID: PMC6774084 DOI: 10.3762/bjoc.15.218] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 09/03/2019] [Indexed: 01/24/2023] Open
Abstract
Fluorine chemistry plays an increasingly important role in pharmaceutical, agricultural, and materials industries. The incorporation of fluorine-containing groups into organic molecules can improve their chemical and physical properties, which attracts continuous interest in organic synthesis. Among various reported methods, transition-metal-catalyzed fluorination/fluoroalkylation has emerged as a powerful method for the construction of these compounds. This review attempts to describe the major advances in the transition-metal-catalyzed incorporation of fluorine, trifluoromethyl, difluoromethyl, trifluoromethylthio, and trifluoromethoxy groups reported between 2011 and 2019.
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Affiliation(s)
- Xiaowei Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaolin Shi
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiangqian Li
- State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, Qingdao 266237, China
| | - Dayong Shi
- State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, Qingdao 266237, China
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15
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Sen C, Sahoo T, Singh H, Suresh E, Ghosh SC. Visible Light-Promoted Photocatalytic C-5 Carboxylation of 8-Aminoquinoline Amides and Sulfonamides via a Single Electron Transfer Pathway. J Org Chem 2019; 84:9869-9896. [PMID: 31307188 DOI: 10.1021/acs.joc.9b00942] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient photocatalytic method was developed for the remote C5-H bond carboxylation of 8-aminoquinoline amide and sulfonamide derivatives. This methodology uses in situ generated •CBr3 radical as a carboxylation agent with alcohol and is further extended to a variety of arenes and heteroarenes to synthesize the desired carboxylated product in moderate-to-good yields. The reaction proceeding through a single electron transfer pathway was established by a control experiment, and a butylated hydroxytoluene-trapped aryl radical cation intermediate in high-resolution mass spectrometry was identified.
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16
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Ma B, Lu F, Yang H, Gu X, Li Z, Li R, Pei H, Luo D, Zhang H, Lei A. Visible Light Mediated External Oxidant Free Selective C5 Bromination of 8‐Aminoquinoline Amides under Ambient Conditions. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900293] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Bin Ma
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Fangling Lu
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Hongmei Yang
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Xin Gu
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Zhen Li
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Ru Li
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Hongqiao Pei
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Dan Luo
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Heng Zhang
- College of Chemistry and Molecular Sciences, the Institute forAdvanced Studies (IAS)Wuhan University Wuhan, Hubei 430072 P. R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
- College of Chemistry and Molecular Sciences, the Institute forAdvanced Studies (IAS)Wuhan University Wuhan, Hubei 430072 P. R. China
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17
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Niu T, Xu J, Ren B, Liu J, Hu G. Iron‐Catalyzed Regioselective C5‐H Benzylation of 8‐Aminoquinolines with Benzylic Acetates. ChemistrySelect 2019. [DOI: 10.1002/slct.201900664] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tian‐Jing Niu
- School of Chemical Engineering and EnergyZhengzhou University Zhengzhou 450001 China
| | - Jin‐Di Xu
- School of Chemical Engineering and EnergyZhengzhou University Zhengzhou 450001 China
| | - Bao‐Zeng Ren
- School of Chemical Engineering and EnergyZhengzhou University Zhengzhou 450001 China
| | - Jing‐Hui Liu
- School of Chemical Engineering and EnergyZhengzhou University Zhengzhou 450001 China
| | - Guo‐Qin Hu
- School of Chemical Engineering and EnergyZhengzhou University Zhengzhou 450001 China
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18
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Ruan Z, Huang Z, Xu Z, Mo G, Tian X, Yu XY, Ackermann L. Catalyst-Free, Direct Electrochemical Tri- and Difluoroalkylation/Cyclization: Access to Functionalized Oxindoles and Quinolinones. Org Lett 2019; 21:1237-1240. [PMID: 30730146 DOI: 10.1021/acs.orglett.9b00361] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The catalyst-free electrochemical di- and trifluoromethylation/cyclization of N-substituted acrylamides was realized under external oxidant-free conditions. The strategy provides expedient access to fluoroalkylated oxindoles and 3,4-dihydroquinolin-2(1 H)-ones with ample scope and broad functional group tolerance by mild, direct electrolysis of sodium sulfinates in an undivided cell. Detailed mechanistic studies provided strong support for a SET-based reaction manifold.
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Affiliation(s)
- Zhixiong Ruan
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou 511436 , P.R. China
| | - Zhixing Huang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou 511436 , P.R. China
| | - Zhongnan Xu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou 511436 , P.R. China
| | - Guangquan Mo
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou 511436 , P.R. China
| | - Xu Tian
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou 511436 , P.R. China
| | - Xi-Yong Yu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital , Guangzhou Medical University , Guangzhou 511436 , P.R. China
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität , Tammannstraße 2 , 37077 Göttingen , Germany
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19
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Zhang Y, Wen C, Li J. C5-Regioselective C-H fluorination of 8-aminoquinoline amides and sulfonamides with Selectfluor under metal-free conditions. Org Biomol Chem 2019; 16:1912-1920. [PMID: 29487929 DOI: 10.1039/c7ob03059b] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A novel and efficient regioselective C-H fluorination of 8-aminoquinoline amides and sulfonamides at the C5 position was achieved. Using Selectfluor as a "F" reagent and HOAc as an additive, the reaction proceeds smoothly via a radical pathway. This method features metal-free conditions, a broad substrate scope and operational simplicity.
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Affiliation(s)
- Yingchao Zhang
- Department of Organic Chemistry, College of Chemistry, Jilin University, Jiefang Road 2519, Changchun, 130023, China.
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20
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A para
-C-H Functionalization of Aniline Derivatives via In situ Generated Bulky Hypervalent Iodinium Reagents. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801058] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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21
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Sambiagio C, Schönbauer D, Blieck R, Dao-Huy T, Pototschnig G, Schaaf P, Wiesinger T, Zia MF, Wencel-Delord J, Besset T, Maes BUW, Schnürch M. A comprehensive overview of directing groups applied in metal-catalysed C-H functionalisation chemistry. Chem Soc Rev 2018; 47:6603-6743. [PMID: 30033454 PMCID: PMC6113863 DOI: 10.1039/c8cs00201k] [Citation(s) in RCA: 1097] [Impact Index Per Article: 182.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 12/20/2022]
Abstract
The present review is devoted to summarizing the recent advances (2015-2017) in the field of metal-catalysed group-directed C-H functionalisation. In order to clearly showcase the molecular diversity that can now be accessed by means of directed C-H functionalisation, the whole is organized following the directing groups installed on a substrate. Its aim is to be a comprehensive reference work, where a specific directing group can be easily found, together with the transformations which have been carried out with it. Hence, the primary format of this review is schemes accompanied with a concise explanatory text, in which the directing groups are ordered in sections according to their chemical structure. The schemes feature typical substrates used, the products obtained as well as the required reaction conditions. Importantly, each example is commented on with respect to the most important positive features and drawbacks, on aspects such as selectivity, substrate scope, reaction conditions, directing group removal, and greenness. The targeted readership are both experts in the field of C-H functionalisation chemistry (to provide a comprehensive overview of the progress made in the last years) and, even more so, all organic chemists who want to introduce the C-H functionalisation way of thinking for a design of straightforward, efficient and step-economic synthetic routes towards molecules of interest to them. Accordingly, this review should be of particular interest also for scientists from industrial R&D sector. Hence, the overall goal of this review is to promote the application of C-H functionalisation reactions outside the research groups dedicated to method development and establishing it as a valuable reaction archetype in contemporary R&D, comparable to the role cross-coupling reactions play to date.
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Affiliation(s)
- Carlo Sambiagio
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - David Schönbauer
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Remi Blieck
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Toan Dao-Huy
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Gerit Pototschnig
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Patricia Schaaf
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Thomas Wiesinger
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Muhammad Farooq Zia
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Joanna Wencel-Delord
- Laboratoire de Chimie Moléculaire (UMR CNRS 7509)
, Université de Strasbourg
,
ECPM 25 Rue Becquerel
, 67087 Strasbourg
, France
| | - Tatiana Besset
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Bert U. W. Maes
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
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22
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23
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Affiliation(s)
- Bhuttu Khan
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Himangsu Sekhar Dutta
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Dipankar Koley
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
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24
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Das R, Kapur M. Transition-Metal-Catalyzed C−H Functionalization Reactions of π-Deficient Heterocycles. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800204] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Riki Das
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhauri Bhopal 462066, MP India
| | - Manmohan Kapur
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhauri Bhopal 462066, MP India
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25
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Yue Q, Xiao Z, Ran Z, Yuan S, Zhang Q, Li D. Copper-catalyzed α-C–H amidation of simple ethers through C(sp3)–H/N–H cross dehydrogenative coupling. Org Chem Front 2018. [DOI: 10.1039/c7qo01003f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient copper-catalyzed α-C–H amidation of simple ethers with N-(8-quinolyl)amides through C(sp3)–H/N–H cross dehydrogenative coupling was developed.
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Affiliation(s)
- Qiang Yue
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
| | - Zhen Xiao
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
| | - Ziyao Ran
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
| | - Songdong Yuan
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
- The Synergistic Innovation Center of Catalysis Materials of Hubei Province
| | - Qian Zhang
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
| | - Dong Li
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
- The Synergistic Innovation Center of Catalysis Materials of Hubei Province
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26
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Zhao L, Li P, Xie X, Wang L. Selective remote C–H trifluoromethylation of aminoquinolines with CF3SO2Na under visible light irradiation in the absence of an external photocatalyst. Org Chem Front 2018. [DOI: 10.1039/c8qo00229k] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A selective remote C–H trifluoromethylation of aminoquinolines with sodium trifluoromethanesulfinate (CF3SO2Na) under visible-light irradiation without an external photocatalyst was developed.
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Affiliation(s)
- Lulu Zhao
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Pinhua Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Xiaoyu Xie
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Lei Wang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
- State Key Laboratory of Organometallic Chemistry
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27
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Xia H, An Y, Zeng X, Wu J. A copper-catalyzed sulfonylative C–H bond functionalization from sulfur dioxide and aryldiazonium tetrafluoroborates. Org Chem Front 2018. [DOI: 10.1039/c7qo00866j] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Sulfonylative C–H bond functionalization through a copper-catalyzed three-component reaction of 8-aminoquinoline amides, DABCO·(SO2)2 and aryldiazonium tetrafluoroborates is developed. Excellent selectivity in the para-position is observed.
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Affiliation(s)
- Hongguang Xia
- Department of Biochemistry and Molecular Biology
- Zhejiang University School of Medicine
- Hangzhou 310058
- China
| | - Yuanyuan An
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Xincheng Zeng
- Department of Biochemistry and Molecular Biology
- Zhejiang University School of Medicine
- Hangzhou 310058
- China
| | - Jie Wu
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
- State Key Laboratory of Organometallic Chemistry
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28
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Guyon H, Chachignon H, Cahard D. CF 3SO 2X (X = Na, Cl) as reagents for trifluoromethylation, trifluoromethylsulfenyl-, -sulfinyl- and -sulfonylation. Part 1: Use of CF 3SO 2Na. Beilstein J Org Chem 2017; 13:2764-2799. [PMID: 30018665 PMCID: PMC5753172 DOI: 10.3762/bjoc.13.272] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 11/15/2017] [Indexed: 11/23/2022] Open
Abstract
Sodium trifluoromethanesulfinate, CF3SO2Na, and trifluoromethanesulfonyl chloride, CF3SO2Cl, are two popular reagents that are widely used for the direct trifluoromethylation of a large range of substrates. Further, these two reagents are employed for the direct trifluoromethylsulfenylation and trifluoromethylsulfinylation, the introduction of the SCF3 and the S(O)CF3 group, respectively. In addition to the aforementioned reactions, the versatility of these two reagents is presented in other reactions such as sulfonylation and chlorination. This first part is dedicated to sodium trifluoromethanesulfinate.
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Affiliation(s)
- Hélène Guyon
- UMR 6014 CNRS COBRA, Normandie Université, 1 rue Tesnière, 76821 Mont Saint Aignan, France
| | - Hélène Chachignon
- UMR 6014 CNRS COBRA, Normandie Université, 1 rue Tesnière, 76821 Mont Saint Aignan, France
| | - Dominique Cahard
- UMR 6014 CNRS COBRA, Normandie Université, 1 rue Tesnière, 76821 Mont Saint Aignan, France
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29
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Dutta HS, Khan B, Khan AA, Raziullah, Ahmad A, Kant R, Koley D. Metal-Free, Oxidant-Free, Site-Selective C−H Halogenations to Aminoquinolines at Room Temperature using N
-Halosaccharins. ChemistrySelect 2017. [DOI: 10.1002/slct.201701649] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Himangsu Sekhar Dutta
- Medicinal and process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow INDIA 226031
| | - Bhuttu Khan
- Medicinal and process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow INDIA 226031
| | - Afsar Ali Khan
- Medicinal and process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow INDIA 226031
| | - Raziullah
- Medicinal and process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow INDIA 226031
| | - Ashfaq Ahmad
- Medicinal and process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow INDIA 226031
| | - Ruchir Kant
- Molecular and structural Biology Division; CSIR-Central Drug Research Institute; Lucknow INDIA 226031
| | - Dipankar Koley
- Medicinal and process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow INDIA 226031
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30
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Arockiam PB, Guillemard L, Wencel-Delord J. Regiodivergent Visible Light-Induced C-H Functionalization of Quinolines at C-5 and C-8 under Metal-, Photosensitizer- and Oxidant-Free Conditions. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700471] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Percia Beatrice Arockiam
- Laboratoire de Chimie Moléculaire (UMR CNRS 7509); Université de Strasbourg, ECPM; 25 rue Becquerel 67087 Strasbourg France
| | - Lucas Guillemard
- Laboratoire de Chimie Moléculaire (UMR CNRS 7509); Université de Strasbourg, ECPM; 25 rue Becquerel 67087 Strasbourg France
| | - Joanna Wencel-Delord
- Laboratoire de Chimie Moléculaire (UMR CNRS 7509); Université de Strasbourg, ECPM; 25 rue Becquerel 67087 Strasbourg France
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31
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Li Y, Zhu L, Cao X, Au CT, Qiu R, Yin SF. Metal-free C5-H Bromination of Quinolines for One-pot C−X (X=C, O, S) Bond Formations. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700391] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- You Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Longzhi Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Xin Cao
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Chak-Tong Au
- College of Chemistry and Chemical Engineering; Hunan Institute of Engineering; Xiangtan 411104 People's Republic of China
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
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32
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Khan B, Khan AA, Bora D, Verma D, Koley D. Copper-Catalyzed Remote C−H Nitration of 8-Amidoquinolines. ChemistrySelect 2017. [DOI: 10.1002/slct.201601917] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Bhuttu Khan
- Medicinal and process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow INDIA 226031
| | - Afsar A. Khan
- Medicinal and process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow INDIA 226031
| | - Darshana Bora
- National Institute of Pharmaceutical Education and Research; Rae Bareli INDIA 229010
| | - Deepti Verma
- Medicinal and process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow INDIA 226031
| | - Dipankar Koley
- Medicinal and process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow INDIA 226031
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33
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Bu MJ, Lu GP, Cai C. Transition-metal-free electrophilic trifluoromethylthiolation with sodium trifluoromethanesulfinate at room temperature. Org Chem Front 2017. [DOI: 10.1039/c6qo00622a] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A transition-metal-free direct trifluoromethylthiolation of C(sp2)–H bonds could be achieved with commercially available CF3SO2Na under room temperature.
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Affiliation(s)
- Mei-jie Bu
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing
- P. R. China
| | - Guo-ping Lu
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing
- P. R. China
| | - Chun Cai
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing
- P. R. China
- Key Laboratory of Organofluorine Chemistry
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34
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Shen C, Yang M, Xu J, Chen C, Zheng K, Shen J, Zhang P. Iodobenzene-catalyzed synthesis of aryl sulfonate esters from aminoquinolines via remote radical C–O cross-coupling. RSC Adv 2017. [DOI: 10.1039/c7ra09053f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple and efficient approach is established for the iodobenzene-catalyzed synthesis of aryl sulfonate esters from aminoquinolines via remote radical C–O cross-coupling in the absence of any transition metal catalysts.
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Affiliation(s)
- Chao Shen
- College of Biology and Environmental Engineering
- Zhejiang Shuren University
- Hangzhou 310015
- China
| | - Ming Yang
- College of Material Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Jun Xu
- College of Material Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Chao Chen
- College of Life Sciences
- Huzhou Teachers College
- Huzhou
- China
| | - Kai Zheng
- College of Biology and Environmental Engineering
- Zhejiang Shuren University
- Hangzhou 310015
- China
| | - Jiabing Shen
- College of Material Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Pengfei Zhang
- College of Material Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
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35
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Vinayak B, NavyaSree P, Chandrasekharam M. Iron(iii)-catalyzed chelation assisted remote C–H bond oxygenation of 8-amidoquinolines. Org Biomol Chem 2017; 15:9200-9208. [DOI: 10.1039/c7ob02159c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a simple, efficient oxygenation of C–H bonds that are geometrically inaccessible in 8-amidoquinolines with inexpensive and nontoxic iron(iii) catalyst. The chelation assisted remote benzoxylation protocol tolerates a wide substrate scope and is operationally simple.
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Affiliation(s)
- Botla Vinayak
- I&PC Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Pilli NavyaSree
- I&PC Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
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36
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Xu J, Qiao L, Ying B, Zhu X, Shen C, Zhang P. Transition-metal-free direct perfluoroalkylation of quinoline amides at C5 position through radical cross-coupling under mild conditions. Org Chem Front 2017. [DOI: 10.1039/c6qo00655h] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple low-energy and efficient method is established for the synthesis of C5-selective perfluoroalkylation quinolines in the absence of any transition metal catalysts.
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Affiliation(s)
- Jun Xu
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Li Qiao
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Beibei Ying
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Xiaolei Zhu
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Chao Shen
- College of Biology and Environmental Engineering
- Zhejiang Shuren University
- Hangzhou 310015
- China
| | - Pengfei Zhang
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
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37
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Wang K, Wang G, Duan G, Xia C. Cobalt(ii)-catalyzed remote C5-selective C–H sulfonylation of quinolines via insertion of sulfur dioxide. RSC Adv 2017. [DOI: 10.1039/c7ra11363c] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A cobalt(ii)-catalyzed reaction for highly selective C5-sulfonylation of quinolines via insertion of sulfur dioxide is developed, leading to diverse sulfonated quinolines in moderate to good yields.
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Affiliation(s)
- Kai Wang
- Pharmacy College
- Taishan Medical University
- Taian 271016
- China
| | - Guodong Wang
- Pharmacy College
- Taishan Medical University
- Taian 271016
- China
| | - Guiyun Duan
- Pharmacy College
- Taishan Medical University
- Taian 271016
- China
| | - Chengcai Xia
- Pharmacy College
- Taishan Medical University
- Taian 271016
- China
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