1
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Lv J, Liang Y, Ouyang Y, Zhang H. Metal-Free ortho C-H Borylation of Thiobenzamides. Org Lett 2024; 26:3709-3714. [PMID: 38691629 DOI: 10.1021/acs.orglett.4c00691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
A BBr3-mediated S-directed ortho C-H borylation of thiobenzamides was developed. A variety of ortho-borylated thiobenzamides were obtained in moderate to good yields with a wide functional group tolerance under simple and metal-free conditions. This transformation provided a convenient and practical route to important functionalized thiobenzamides.
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Affiliation(s)
- Jianxing Lv
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, P. R. China
| | - Yixuan Liang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, P. R. China
| | - Yepeng Ouyang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, P. R. China
| | - Hua Zhang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, P. R. China
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2
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Aher YN, Bhaduri N, Pawar AB. Advances in transition metal-catalyzed C-H amination strategies using anthranils. Org Biomol Chem 2023; 21:8794-8812. [PMID: 37901918 DOI: 10.1039/d3ob01421e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Modern times have witnessed an uprise in the synthesis and derivatization of nitrogen-containing fused heterocycles. Amination reactions involving nitrene chemistry have always been the most convenient choice for the incorporation of a nitrogen atom in a molecule. The utilization of an open nitrene species harnesses harsh conditions. Hence, transition metal-catalyzed C-H amination reactions using aminating agents have been an attractive choice. Electrophilic aminating agents for C-H amination reactions are well exploited due to their desirable reaction conditions. Out of all, anthranils have paved the way forward due to their utility in simultaneously forming two new functional groups (amine and carbonyl). Amination using anthranils follows a metal-nitrenoid pathway. Often, the amination has been followed by a Lewis acid or transition metal-mediated intramolecular cyclization to directly produce fused heterocycles. This review broadly demonstrates the utilization of anthranils as an aminating agent for transition metal-catalyzed C-H amination reactions. The focus has been given to the scope, limitations, and mechanistic understanding of using such an electrophilic aminating agent, anthranil, with transition metals.
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Affiliation(s)
- Yogesh N Aher
- School of Chemical Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, 175075, India.
| | - Nilanjan Bhaduri
- School of Chemical Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, 175075, India.
| | - Amit B Pawar
- School of Chemical Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, 175075, India.
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3
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Feng D, Xu C, Wang W, Zhan H, Ge C, Huang P. Triphosgene and Triphenylphosphine Oxide-Mediated Cascade Heterocyclization of N-Acylated Anilines: One-Pot Synthesis of 2,4-Dichloroquinolines. J Org Chem 2023; 88:14610-14618. [PMID: 37818975 DOI: 10.1021/acs.joc.3c01617] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
A one-pot cascade chlorination/heterocyclization strategy has been developed for the synthesis of 2,4-dichloro-substituted quinolines from acylated anilines using triphosgene and triphenylphosphine oxide. Obviating the conventional harsh conditions of chlorination, synthetic useful quinolines with moderate to good yields were obtained through this reaction. The mechanism study exhibited that the formation of a β-enamine intermediate plays a vital role in the generation of the final product.
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Affiliation(s)
- Daming Feng
- College of Chemistry, Liaoning University, Shenyang, Liaoning 110036, P. R. China
| | - Changlin Xu
- College of Chemistry, Liaoning University, Shenyang, Liaoning 110036, P. R. China
| | - Wenhao Wang
- College of Chemistry, Liaoning University, Shenyang, Liaoning 110036, P. R. China
| | - Haoming Zhan
- College of Chemistry, Liaoning University, Shenyang, Liaoning 110036, P. R. China
| | - Chunhua Ge
- College of Chemistry, Liaoning University, Shenyang, Liaoning 110036, P. R. China
| | - Peng Huang
- College of Chemistry, Liaoning University, Shenyang, Liaoning 110036, P. R. China
- Judicial Authentication & Forensic Sciences Institute, Liaoning University, Shenyang, Liaoning 110036, P. R. China
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4
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Desai B, Uppuluru A, Dey A, Deshpande N, Dholakiya BZ, Sivaramakrishna A, Naveen T, Padala K. The recent advances in cobalt-catalyzed C(sp 3)-H functionalization reactions. Org Biomol Chem 2023; 21:673-699. [PMID: 36602117 DOI: 10.1039/d2ob01936a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Over the past decades, reactions involving C-H functionalization have become a hot theme in organic transformations because they have a lot of potential for the streamlined synthesis of complex molecules. C(sp3)-H bonds are present in most organic species. Since organic molecules have massive significance in various aspects of life, the exploitation and functionalization of C(sp3)-H bonds hold enormous importance. In recent years, the first-row transition metal-catalyzed direct and selective functionalization of C-H bonds has emerged as a simple and environmentally friendly synthetic method due to its low cost, unique reactivity profiles and easy availability. Therefore, research advancements are being made to conceive catalytic systems that foster direct C(sp3)-H functionalization under benign reaction conditions. Cobalt-based catalysts offer mild and convenient reaction conditions at a reasonable expense compared to conventional 2nd and 3rd-row transition metal catalysts. Consequently, the probing of Co-based catalysts for C(sp3)-H functionalization is one of the hot topics from the outlook of an organic chemist. This review primarily focuses on the literature from 2018 to 2022 and sheds light on the substrate scope, selectivity, benefits and limitations of cobalt catalysts for organic transformations.
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Affiliation(s)
- Bhargav Desai
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat-395 007, India.
| | - Ajay Uppuluru
- Department of Chemistry, School of Advanced Science, Vellore Institute of Technology, Katpadi, Vellore, Tamil Nadu, 632014, India.
| | - Ashutosh Dey
- Department of Chemistry, School of Advanced Science, Vellore Institute of Technology, Katpadi, Vellore, Tamil Nadu, 632014, India.
| | - Neha Deshpande
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat-395 007, India.
| | - Bharatkumar Z Dholakiya
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat-395 007, India.
| | - Akella Sivaramakrishna
- Department of Chemistry, School of Advanced Science, Vellore Institute of Technology, Katpadi, Vellore, Tamil Nadu, 632014, India.
| | - Togati Naveen
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat-395 007, India.
| | - Kishor Padala
- Department of Chemistry, School of Advanced Science, Vellore Institute of Technology, Katpadi, Vellore, Tamil Nadu, 632014, India. .,Central Tribal University of Andhra Pradesh, Kondakarakam Village, Cantonment, Vizianagaram, Andhra Pradesh, 535003, India
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5
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Wakikawa T, Sekine D, Murata Y, Bunno Y, Kojima M, Nagashima Y, Tanaka K, Yoshino T, Matsunaga S. Native Amide-Directed C(sp 3 )-H Amidation Enabled by Electron-Deficient Rh III Catalyst and Electron-Deficient 2-Pyridone Ligand. Angew Chem Int Ed Engl 2022; 61:e202213659. [PMID: 36305194 DOI: 10.1002/anie.202213659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Indexed: 11/07/2022]
Abstract
Trivalent group-9 metal catalysts with a cyclopentadienyl-type ligand (CpMIII ; M=Co, Rh, Ir, Cp=cyclopentadienyl) have been widely used for directed C-H functionalizations, albeit that their application to challenging C(sp3 )-H functionalizations suffers from the limitations of the available directing groups. In this report, we describe directed C(sp3 )-H amidation reactions of simple amide substrates with a variety of substituents. The combination of an electron-deficient CpE Rh catalyst (CpE =1,3-bis(ethoxycarbonyl)-substituted Cp) and an electron-deficient 2-pyridone ligand is essential for high reactivity.
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Affiliation(s)
- Takumi Wakikawa
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Daichi Sekine
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Yuta Murata
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Youka Bunno
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Masahiro Kojima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Yuki Nagashima
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan.,Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan.,Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
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6
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Wu D, Liu Z, Chang Y, Chen J, Qi H, Dong Y, Xu H. Cp*Co III-catalyzed formal [4 + 2] cycloaddition of 2-phenyl-1 H-imidazoles to afford imidazo[1,2- c]quinazoline derivatives. Org Biomol Chem 2022; 20:4993-4998. [PMID: 35694953 DOI: 10.1039/d2ob00697a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A synthetic protocol based on Cp*CoIII-catalyzed C-H amidation/annulation of 2-aryl-1H-imidazoles with 1,4,2-dioxazol-5-ones was developed to give imidazo[1,2-c]quinazoline derivatives with broad substrate scope in moderate to good yields. The method has good prospects of application in the synthesis of imidazo[1,2-c]quinazoline drugs.
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Affiliation(s)
- Deyu Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China. .,Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zhengqiang Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China. .,Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yiting Chang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China. .,Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Jiajing Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China. .,Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Haixiang Qi
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China. .,Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yi Dong
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China. .,Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.,State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medcial University, Guiyang 550014, China
| | - Heng Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China. .,Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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7
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Ma L, Zhang X, Tuo Y, Zheng QZ. Cp*Rh(III)-Catalyzed Regioselective C(sp 2)-H Mono- and Dialkynylation of Thioamides by Sulfur Coordination. J Org Chem 2022; 87:3691-3700. [PMID: 35138097 DOI: 10.1021/acs.joc.1c02622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient Cp*Rh(III)-catalyzed regioselective C(sp2)-H mono- and dialkynylation of thioamides was described. This reaction was performed under mild conditions in high yields (up to 98%) with a broad substrate scope. Significantly, the versatility of this method was further demonstrated by controlled mono- and dialkynylation. Application of this protocol in the late stage functionalization of two drug molecules (Adapalene and Amoxapine) was also demonstrated.
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Affiliation(s)
- Lin Ma
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Xiaohui Zhang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Yanyan Tuo
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Qing-Zhong Zheng
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China.,State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing 100191, China
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8
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Xie H, Song JL, Jiang CY, Huang YX, Zeng JY, Liu XG, Zhang SS, Yang F. Thioether-directed Rh(III)-catalyzed peri-selective acyloxylation of arenes. Org Biomol Chem 2022; 20:565-569. [PMID: 34985096 DOI: 10.1039/d1ob02236a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A thioether directed acyloxylation of arenes has been realized via Cp*Rh(III)-catalyzed C-H activation and subsequent coupling with carboxylic acids. This new method showed high functional group compatibility and broad substrate scope. Primary mechanistic studies have been conducted and a tentative reaction mechanism was proposed. It represents the first example of a thioether-directed Cp*Rh(III)-catalyzed C(sp2)-H acyloxylation reaction.
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Affiliation(s)
- Hui Xie
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Jia-Lin Song
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Chun-Yong Jiang
- School of Ethnic Medicine, Guizhou Minzu University, Guiyang, 550025, P. R. China
| | - Yan-Xia Huang
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Jun-Yi Zeng
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Xu-Ge Liu
- Key Laboratory of Brain Targeted Nanodrugs of Henan Province, School of Pharmacy, Henan University, Kaifeng, Henan 475004, P. R. China.
| | - Shang-Shi Zhang
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Fan Yang
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
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9
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Gao Y, Yang S, She M, Nie J, Huo Y, Chen Q, Li X, Hu XQ. Practical Synthesis of 3-Aryl Anthranils via an Electrophilic Aromatic Substitution Strategy. Chem Sci 2022; 13:2105-2114. [PMID: 35308846 PMCID: PMC8849043 DOI: 10.1039/d1sc06565c] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/27/2022] [Indexed: 11/25/2022] Open
Abstract
We report a practical route for the synthesis of valuable 3-aryl anthranils from readily available anthranils and simple arenes by using the classical electrophilic aromatic substitution (EAS) strategy. This transformation goes through an electrophilic substitution and rearomatisation sequence by employing Tf2O as an effective activator. A wide range of arenes were compatible in this transformation, delivering various structurally diversified 3-aryl anthranils in good yields and high regioselectivity. In addition, a variety of readily available feedstocks such as olefins, alkenyl triflates, silyl enolethers, carbonyl compounds, thiophenols and thiols could also participate in the reaction to achieve the C3 alkenylation, alkylation and thioetherification of anthranils. Of note, the synthesized 3-aryl anthranils proved to be a highly robust platform to access a series of biologically active compounds, drug derivatives and organic optoelectronic materials. A practical route for the synthesis of valuable 3-aryl anthranils from readily available anthranils and simple arenes has been achieved through an electrophilic substitution and rearomatization sequence by employing Tf2O as an effective activator.![]()
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Affiliation(s)
- Yang Gao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Simin Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Minwei She
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Jianhong Nie
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Xiao-Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities Wuhan 430074 China
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10
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Zhang J, Zhang C, Zheng Z, Zhou P, Liu W. Research Progress of Sulfoxonium Ylides in the Construction of Five/Six-Membered Nitrogen-Containing Heterocycles. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202204002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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11
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Saranya PV, Neetha M, Philip RM, Anilkumar G. Recent advances and prospects in the cobalt-catalyzed amination reactions. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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12
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Begam HM, Nandi S, Jana R. Directing group switch in copper-catalyzed electrophilic C–H amination/migratory annulation cascade: divergent access to benzimidazolone/benzimidazole. Chem Sci 2022; 13:5726-5733. [PMID: 35694354 PMCID: PMC9116329 DOI: 10.1039/d2sc01420c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/13/2022] [Indexed: 12/02/2022] Open
Abstract
We present here a copper-catalyzed electrophilic ortho C–H amination of protected naphthylamines with N-(benzoyloxy)amines, cyclization with the pendant amide, and carbon to nitrogen 1,2-directing group migration cascade to access N,N-disubstituted 2-benzimidazolinones. Remarkably, this highly atom-economic tandem reaction proceeds through a C–H and C–C bond cleavage and three new C–N bond formations in a single operation. Intriguingly, the reaction cascade was altered by the subtle tuning of the directing group from picolinamide to thiopicolinamide furnishing 2-heteroaryl-imidazoles via the extrusion of hydrogen sulfide. This strategy provided a series of benzimidazolones and benzimidazoles in moderate to high yields with low catalyst loading (66 substrates with yields up to 99%). From the control experiments, it was observed that after the C–H amination an incipient tetrahedral oxyanion or thiolate intermediate is formed via an intramolecular attack of the primary amine to the amide/thioamide carbonyl. It undergoes either a 1,2-pyridyl shift with the retention of the carbonyl moiety or H2S elimination for scaffold diversification. Remarkably, inspite of a positive influence of copper in the reaction outcome, from our preliminary investigations, the benzimidazolone product was obtained in good to moderate yields in two steps under metal-free conditions. The N-pyridyl moiety of the benzimidazolone was removed for further manipulation of the free NH group. A novel directing group switch strategy is explored in a copper-catalyzed divergent synthesis of benzimidazolone via electrophilic C–H amination/cyclization/1,2-C → N directing group migration cascade and benzimidazole through the extrusion of H2S.![]()
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Affiliation(s)
- Hasina Mamataj Begam
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology 4 Raja S. C. Mullick Road, Jadavpur Kolkata-700032 West Bengal India
| | - Shantanu Nandi
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology 4 Raja S. C. Mullick Road, Jadavpur Kolkata-700032 West Bengal India
| | - Ranjan Jana
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology 4 Raja S. C. Mullick Road, Jadavpur Kolkata-700032 West Bengal India
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13
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Liu B, Romine AM, Rubel CZ, Engle KM, Shi BF. Transition-Metal-Catalyzed, Coordination-Assisted Functionalization of Nonactivated C(sp 3)-H Bonds. Chem Rev 2021; 121:14957-15074. [PMID: 34714620 PMCID: PMC8968411 DOI: 10.1021/acs.chemrev.1c00519] [Citation(s) in RCA: 186] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Transition-metal-catalyzed, coordination-assisted C(sp3)-H functionalization has revolutionized synthetic planning over the past few decades as the use of these directing groups has allowed for increased access to many strategic positions in organic molecules. Nonetheless, several challenges remain preeminent, such as the requirement for high temperatures, the difficulty in removing or converting directing groups, and, although many metals provide some reactivity, the difficulty in employing metals outside of palladium. This review aims to give a comprehensive overview of coordination-assisted, transition-metal-catalyzed, direct functionalization of nonactivated C(sp3)-H bonds by covering the literature since 2004 in order to demonstrate the current state-of-the-art methods as well as the current limitations. For clarity, this review has been divided into nine sections by the transition metal catalyst with subdivisions by the type of bond formation. Synthetic applications and reaction mechanism are discussed where appropriate.
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Affiliation(s)
- Bin Liu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Rd., Hangzhou 310027, China.,College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Andrew M. Romine
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States
| | - Camille Z. Rubel
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States
| | - Keary M. Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States.,Corresponding Author- (K. M. E.); (B.-F. S.)
| | - Bing-Feng Shi
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Rd., Hangzhou 310027, China.,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China,Corresponding Author- (K. M. E.); (B.-F. S.)
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14
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Gao P, Zhang X, Zheng QZ. Cobalt(III)-catalyzed C-H amidation of N, N-dialkyl thiobenzamides by sulfur coordination. Org Biomol Chem 2021; 19:10332-10336. [PMID: 34817486 DOI: 10.1039/d1ob02034j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient inexpensive cobalt(III)-catalyzed intermolecular amidation of N,N-dialkyl thiobenzamides with 1,4,2-dioxazol-5-ones via C-H bond activation is described. The reaction proceeds with high functional group tolerance under external oxidant free conditions, providing a straightforward approach for the direct modification of thioamide derivatives, which are prevalent organic motifs found in vital biological and pharmaceutical molecules.
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Affiliation(s)
- Pengpeng Gao
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China.
| | - Xiaohui Zhang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China.
| | - Qing-Zhong Zheng
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China. .,State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing 100191, China
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15
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Wan X, Wang S, Wu C, Gan J, Wang C. Yb(OTf) 3-Mediated Annulation of Cyclopropane-1,1-dicarbonitriles with 2-Aminobenzaldehydes for Synthesis of Polysubstituted Quinolines. Org Lett 2021; 23:8799-8803. [PMID: 34743522 DOI: 10.1021/acs.orglett.1c03301] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A Yb(OTf)3-mediated annulation of cyclopropane-1,1-dicarbonitriles and 2-aminobenzaldehydes for the synthesis of polysubstituted quinolines in generally good yields was investigated. In the cascade reaction, the protocol includes ring opening, intermolecular nuclophilic addition, intramolecular nuclophilic addition, and demalononitrile aromatization, in which the malononitrile group serves as a deciduous directing group mediated by Yb(OTf)3.
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Affiliation(s)
- Xinyi Wan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Shan Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Chengjun Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Jianbo Gan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
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16
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Madhavan S, Keshri SK, Kapur M. Transition Metal‐Mediated Functionalization of Isoxazoles: A Review. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100560] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Suchithra Madhavan
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066, MP India
| | - Santosh Kumar Keshri
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066, MP India
| | - Manmohan Kapur
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066, MP India
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17
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18
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Lukasevics L, Cizikovs A, Grigorjeva L. C-H bond functionalization by high-valent cobalt catalysis: current progress, challenges and future perspectives. Chem Commun (Camb) 2021; 57:10827-10841. [PMID: 34570134 DOI: 10.1039/d1cc04382j] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Over the last decade, high-valent cobalt catalysis has earned a place in the spotlight as a valuable tool for C-H activation and functionalization. Since the discovery of its unique reactivity, more and more attention has been directed towards the utilization of cobalt as an alternative to noble metal catalysts. In particular, Cp*Co(III) complexes, as well as simple Co(II) and Co(III) salts in combination with bidentate chelation assistance, have been extensively used for the development of novel transformations. In this review, we have demonstrated the existing trends in the C-H functionalization methodology using high-valent cobalt catalysis and highlighted the main challenges to overcome, as well as perspective directions, which need to be further developed in the future.
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Affiliation(s)
- Lukass Lukasevics
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia.
| | - Aleksandrs Cizikovs
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia.
| | - Liene Grigorjeva
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia.
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19
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Du B, Ouyang Y, Chen Q, Yu WY. Thioether-Directed NiH-Catalyzed Remote γ-C(sp 3)-H Hydroamidation of Alkenes by 1,4,2-Dioxazol-5-ones. J Am Chem Soc 2021; 143:14962-14968. [PMID: 34496211 DOI: 10.1021/jacs.1c05834] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A NiH-catalyzed thioether-directed cyclometalation strategy is developed to enable remote methylene C-H bond amidation of unactivated alkenes. Due to the preference for five-membered nickelacycle formation, the chain-walking isomerization initiated by the NiH insertion to an alkene can be terminated at the γ-methylene site remote from the alkene moiety. By employing 2,9-dibutyl-1,10-phenanthroline (L4) as the ligand and dioxazolones as the reagent, the amidation occurs at the γ-C(sp3)-H bonds to afford the amide products in up to 90% yield (>40 examples) with remarkable regioselectivity (up to 24:1 rr).
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Affiliation(s)
- Bingnan Du
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Yuxin Ouyang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Qishu Chen
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Wing-Yiu Yu
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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20
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Sunny S, Karvembu R. Recent Advances in Cobalt‐Catalyzed, Directing‐Group‐Assisted C−H Bond Amidation Reactions. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100558] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Sereena Sunny
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015 India
| | - Ramasamy Karvembu
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015 India
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21
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Aher YN, Pawar AB. Cp*Co(III)-catalyzed C-H amination/annulation cascade of sulfoxonium ylides with anthranils for the synthesis of indoloindolones. Chem Commun (Camb) 2021; 57:7164-7167. [PMID: 34184017 DOI: 10.1039/d1cc02817k] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Cp*Co(iii)-catalyzed [4+1] annulation of sulfoxonium ylides with anthranils has been developed for the synthesis of indole-indolone scaffolds. The dual functionality of anthranils was exploited, wherein the nitrogen has been used for C-H amination and the aldehyde group was utilized in the subsequent intramolecular aldol condensation to furnish the corresponding annulated products.
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Affiliation(s)
- Yogesh N Aher
- School of Basic Sciences, Indian Institute of Technology Mandi, Kamand, Himachal Pradesh 175075, India.
| | - Amit B Pawar
- School of Basic Sciences, Indian Institute of Technology Mandi, Kamand, Himachal Pradesh 175075, India.
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22
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Zhang ZZ, Liao G, Chen HM, Shi BF. Thioamide-Directed Cp*Co(III)-Catalyzed C-H Allylation of Ferrocenes. Org Lett 2021; 23:2626-2631. [PMID: 33711894 DOI: 10.1021/acs.orglett.1c00533] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Herein, the first Cp*Co(III)-catalyzed C-H allylation of ferrocene thioamides with allyl carbonates has been developed. This reaction is compatible with a wide range of functional groups, providing various allylated ferrocene derivatives in up to 90% yields. In addition, the C-H allylation protocol is also compatible with the use of vinylcyclopropanes as allylating reagents by merging C-H and C-C activation into one catalytic system. Mechanistic studies revealed that the thiocarbonyl-directing group plays a vital role in C-H activation.
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Affiliation(s)
- Zhuo-Zhuo Zhang
- School of Food and Biological Engineering, Chengdu University, Chengdu, Sichuan 610106, China
| | - Gang Liao
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Hao-Ming Chen
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China.,Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
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23
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Gao C, Xu J, Zhu S, Jian K, Xuan Q, Song Q. Preparation of anthranils via chemoselective oxidative radical cyclization of 3-(2-azidoaryl) substituted propargyl alcohols. Chem Commun (Camb) 2021; 57:2037-2040. [PMID: 33507184 DOI: 10.1039/d0cc07919g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
In the presence of K2S2O8 and HOAc, 3-(2-azidoaryl) substituted propargyl alcohols can go through chemoselective oxidative radical cyclizations to give a pool of anthranils based on Meyer-Schuster rearrangement. It's proposed that the cyclizations were triggered exclusively by the direct attack of oxygen radicals on the azides. The weak N-O bonds in anthranils could be easily cleaved in the presence of transition metal catalysts and went through aminations with 2-oxo-2-phenylacetic acid and iodobenzene.
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Affiliation(s)
- Chao Gao
- Institute of Next Generation Matter Transformation, College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, 361021, Fujian, China.
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24
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Zhuang S, Tang Y, He C, Chen X, Xue W, Wu Y, Wu A. Copper‐catalyzed Reaction of Anthranils with Methyl Ketones: Site‐Selective C5‐Dicarbonylation of Anthranils. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001334] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Shi‐Yi Zhuang
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
| | - Yong‐Xing Tang
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
| | - Cai He
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
| | - Xiang‐Long Chen
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
| | - Wei‐Jian Xue
- College of Chemistry and Chemical Engineering Qiqihar University Qiqihar 161006 People's Republic of China
| | - Yan‐Dong Wu
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
| | - An‐Xin Wu
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
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25
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Liang Y, Si X, Zhang H, Yang D, Niu J, Song M. Thiocarbamate‐directed Cp*Co(III)‐Catalyzed Olefinic C−H Amidation: Facile Access to Enamines with High (
Z
)‐Selectivity. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001505] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ya‐Ru Liang
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou Henan 450001 China
| | - Xiao‐Ju Si
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou Henan 450001 China
| | - He Zhang
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou Henan 450001 China
| | - Dandan Yang
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou Henan 450001 China
| | - Jun‐Long Niu
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou Henan 450001 China
| | - Mao‐Ping Song
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou Henan 450001 China
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26
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Feng YL, Shi BF. Recent Advances in Base Metal (Copper, Cobalt and Nickel)-Catalyzed Directed C—H Amination. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Xie H, Zhong M, Wang XT, Wu JQ, Cai YQ, Liu J, Shu B, Che T, Zhang SS. Cp*Ir(iii)- and Cp*Rh(iii)-catalyzed C(sp2)–H amination of arenes using thioethers as directing groups. Org Chem Front 2021. [DOI: 10.1039/d0qo01353f] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A mild and selective Cp*Ir(iii)- and Cp*Rh(iii)-catalyzed direct C(sp2)–H amination of arenes and three types of nitrene precursor reagents is reported, with the assistance of a thioether directing group.
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Affiliation(s)
- Hui Xie
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Mei Zhong
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- PR China
| | - Xiao-Tong Wang
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- PR China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
| | - Yan-Qu Cai
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Jidan Liu
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- People's Republic of China
| | - Bing Shu
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- PR China
| | - Tong Che
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
- Jiangxi Chinese Medicine Science Center of DICP
| | - Shang-Shi Zhang
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
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28
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Hu Y, Ma X, Hou H, Sun W, Tu S, Wu M, Lin R, Xu X, Ke F. Electrochemical oxidative synthesis of 2-benzoylquinazolin-4(3 H)-one via C(sp 3)–H amination under metal-free conditions. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01230d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An electrochemically induced C(sp3)–H amination of 2-aminobenzamides with ketones using TBAI as a catalyst was developed, and provided 2-benzoylquinazolin-4(3H)-ones under metal-free conditions.
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Affiliation(s)
- Yongzhi Hu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Xinhua Ma
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Huiqing Hou
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Weiming Sun
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Shuqing Tu
- Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350000, China
| | - Mei Wu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Rongkun Lin
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Xiuzhi Xu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Fang Ke
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
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29
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Zhang J, Liu Y, Jia Q, Wang Y, Ma Y, Szostak M. Ruthenium(II)-Catalyzed C–H Arylation of N,N-Dialkyl Thiobenzamides with Boronic Acids by Sulfur Coordination in 2-MeTHF. Org Lett 2020; 22:6884-6890. [DOI: 10.1021/acs.orglett.0c02410] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Ying Liu
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Qiangqiang Jia
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
| | - Yue Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Michal Szostak
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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30
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Gao Y, Yang S, Li Y, Huo Y, Huang Z, Chen Z, Hu XQ. Copper-Catalyzed Electrophilic Amination of Arylboronic Acids with Anthranils: An Access to N-Aryl-2-aminophenones. J Org Chem 2020; 85:10222-10231. [PMID: 32633122 DOI: 10.1021/acs.joc.0c01109] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient copper-catalyzed electrophilic amination strategy has been established for the rapid synthesis of N-aryl-2-aminophenones from readily available arylboronic acids/esters and anthranils. This protocol features good functional group tolerance, broad substrate scope, and operational simplicity. Moreover, a tandem C-H borylation and C-N coupling protocol has also been developed to transform simple arenes to the valuable N-aryl-2-aminophenones in one pot. Additionally, the synthetic potential of this methodology is further demonstrated by the synthesis of various useful N-heterocycles and derivatives.
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Affiliation(s)
- Yang Gao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Simin Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Yibiao Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529090, China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Zongyi Huang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Zumin Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Xiao-Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, Hubei 430074, China
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31
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Gao Y, Nie J, Li Y, Liao G, Huo Y, Hu X. Rh(III)‐Catalyzed Selective
ortho
‐C−H Amination of Benzoic Acids with Anthranils: A Facile Access to Anthranilic Acid Derivatives (AAs). ChemCatChem 2020. [DOI: 10.1002/cctc.202000052] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yang Gao
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Jianhong Nie
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Yibiao Li
- School of Biotechnology and Health Sciences Wuyi University Jiangmen Guangdong 529090 P. R. China
| | - Guilan Liao
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Xiao‐Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science School of Chemistry and Materials Science South-Central University for Nationalities Wuhan 430074 P. R. China
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32
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Gao Y, Nie J, Li Y, Li X, Chen Q, Huo Y, Hu XQ. Rh-Catalyzed C-H Amination/Annulation of Acrylic Acids and Anthranils by Using -COOH as a Deciduous Directing Group: An Access to Diverse Quinolines. Org Lett 2020; 22:2600-2605. [PMID: 32208620 DOI: 10.1021/acs.orglett.0c00539] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A method for the synthesis of diverse polysubstituted quinolines from readily available acrylic acids and anthranils has been developed. The weakly coordinating -COOH directing group, which can be tracelessly removed in the cascade cyclization, is essential for this reaction. Diverse polysubstituted quinolines were obtained under mild reaction conditions with simple H2O and CO2 as byproducts. More importantly, 1,2,3,4-tetrahydroacridine, which is the core skeleton of tacrine (an Alzheimer's disease drug), was conveniently synthesized.
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Affiliation(s)
- Yang Gao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Jianhong Nie
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Yibiao Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529090, China
| | - Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiao-Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
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33
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Li J, Liu L, Zhang Z, Wang Y, Zhang Y. Electrophilic Amination with Anthranils through Thioamide-Assisted Cobalt(III)-Catalyzed C(sp3)–H Activation. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0039-1690087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Cobalt(III)-catalyzed electrophilic amination of inert C(sp3)–H bonds of weakly coordinating thioamides with readily accessible anthranil derivatives was accomplished under mild conditions, with good functional group tolerance, thus providing various amino aldehydes and amino ketones. Moreover, our protocol with the versatile [Cp*Co(MeCN)3][SbF6]2 features excellent atom-economy and oxidant-free conditions, and allows facile late-stage functionalization.
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Affiliation(s)
- Jie Li
- School of Pharmaceutical Sciences, Jiangnan University
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University
| | - Lei Liu
- School of Pharmaceutical Sciences, Jiangnan University
| | - Zhao Zhang
- School of Pharmaceutical Sciences, Jiangnan University
| | - Yucheng Wang
- School of Pharmaceutical Sciences, Jiangnan University
| | - Yan Zhang
- School of Pharmaceutical Sciences, Jiangnan University
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34
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Biswas A, Bera S, Poddar P, Dhara D, Samanta R. Rh(iii)-Catalyzed tandem indole C4-arylamination/annulation with anthranils: access to indoloquinolines and their application in photophysical studies. Chem Commun (Camb) 2020; 56:1440-1443. [DOI: 10.1039/c9cc08372c] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An efficient Rh(iii)-catalyzed straightforward strategy was developed for the site-selective tandem C4 arylamination/annulation of indole derivatives with anthranil to provide indoloquinoline moieties.
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Affiliation(s)
- Aniruddha Biswas
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Satabdi Bera
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Puja Poddar
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Dibakar Dhara
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Rajarshi Samanta
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
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Gao Y, Nie J, Huo Y, Hu XQ. Anthranils: versatile building blocks in the construction of C–N bonds and N-heterocycles. Org Chem Front 2020. [DOI: 10.1039/d0qo00163e] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review article provides an overview of the recent progress in the transformations of anthranils, which have emerged as versatile building blocks in the assembly of various C–N bonds and medicinally active heterocyclic systems.
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Affiliation(s)
- Yang Gao
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Jianhong Nie
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Xiao-Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science
- School of Chemistry and Materials Science
- South-Central University for Nationalities
- Wuhan 430074
- China
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37
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Baccalini A, Vergura S, Dolui P, Zanoni G, Maiti D. Recent advances in cobalt-catalysed C–H functionalizations. Org Biomol Chem 2019; 17:10119-10141. [DOI: 10.1039/c9ob01994d] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Ready availability, low cost and low toxicity of cobalt salts have redirected the attention of researchers away from noble metals, such as Pd, Rh, and Ir, towards Co in the field of C–H functionalisation.
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Affiliation(s)
| | | | - Pravas Dolui
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | | | - Debabrata Maiti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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