1
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Gao T, Yang Y, Hu L, Luo D, Zhang X, Xiong Y. Metal -free PhI(OAc) 2-oxidized decarboxylation of propiolic acids towards synthesis of α-acetoxy ketones and insights into general decarboxylation with DFT calculations. Org Biomol Chem 2023; 21:1457-1462. [PMID: 36651659 DOI: 10.1039/d2ob02281h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A metal-free oxidative decarboxylation reaction of propiolic acids mediated by hypervalent iodine(III) reagents is described. This decarboxylative C-O bond-forming reaction used a combination of (diacetoxyiodo)benzene and aromatic, heteroaromatic or aliphatic propiolic acids to give the corresponding α-acetoxy ketones. Preliminary mechanistic studies based on both DFT calculations and high-resolution mass spectroscopy (HRMS) suggested that the reaction proceeded through decarboxylation to form a propargyl iodide intermediate. This reaction provides an attractive alternative to existing methods for the exclusive synthesis of α-acyloxy ketones.
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Affiliation(s)
- Tianyong Gao
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China.
| | - Yawen Yang
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China.
| | - Liangzhen Hu
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China.
| | - Dan Luo
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China.
| | - Xiaohui Zhang
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China.
| | - Yan Xiong
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China. .,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China.,School of Chemical and Environmental Engineering, and Collaborative Innovation Center for High Value Transformation of Coal Chemical Process By-products, Xinjiang Institute of Engineering, Xinjiang 830091, China
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2
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Boron Trifluoride Etherate Promoted Regioselective 3-Acylation of Indoles with Anhydrides. Molecules 2022; 27:molecules27238281. [PMID: 36500373 PMCID: PMC9741063 DOI: 10.3390/molecules27238281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
An efficient, high-yielding and scalable procedure for the regioselective 3-acylation of indoles with anhydrides promoted by boron trifluoride etherate under mild conditions was reported. This novel protocol provided a simple way to prepare 3-(benzofuran-2-yl) indole in three steps.
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3
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Liu H, Ren S, Ma C, Shi G, Li Y, Duan G, Ge Y. Copper‐Promoted Direct Decarboxylative C3‐Acylation of Electron‐Rich Indolizines Using α‐Keto Acids. ChemistrySelect 2022. [DOI: 10.1002/slct.202104426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hao Liu
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Shaohong Ren
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Chuanjun Ma
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Guowei Shi
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Yongchao Li
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Guiyun Duan
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Yanqing Ge
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
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4
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Hong J, Zhang M, Shi L, Liu P, Guo Y, Zhao T, Li QX, Yang L. Copper( i)-catalyzed synthesis of natural alkaloid tryptanthrin and its derivatives. NEW J CHEM 2022. [DOI: 10.1039/d2nj01307j] [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
A facile one-pot synthesis of natural alkaloid tryptanthrin and its derivatives from isatins catalyzed by CuI in the presence of KHCO3 has been developed.
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Affiliation(s)
- Jiankai Hong
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Min Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Liang Shi
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Peng Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Yuchao Guo
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Ting Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Qing X. Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East-West Road, Honolulu, Hawaii 96822, USA
| | - Liuqing Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
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5
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Rajput S, Kaur R, Jain N. Pd and photoredox dual catalysis assisted decarboxylative ortho-benzoylation of N-phenyl-7-azaindoles. Org Biomol Chem 2022; 20:1453-1461. [DOI: 10.1039/d1ob02338a] [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
Directing group assisted decarboxylative ortho-benzoylation of N-aryl-7-azaindoles with α-keto acids has been achieved by synergistic visible light promoted photoredox and palladium catalysis. The approach tenders rapid entry to aryl ketone...
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6
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Wang Q, Wang X, Yu M, Song H, Liu YX. Palladium Metallaphotoredox-Catalyzed 3-Acylation of Indole Derivatives. Chem Commun (Camb) 2022; 58:9492-9495. [DOI: 10.1039/d2cc03658d] [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
Aldehydes and indoles generally undergo nucleophilic addition reactions to generate alcohols rather than ketones. Here, we report a method for synthesis of 3-acyl indoles from aldehydes by a combination of...
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7
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Cheng YY, Yu JX, Lei T, Hou HY, Chen B, Tung CH, Wu LZ. Direct 1,2-Dicarbonylation of Alkenes towards 1,4-Diketones via Photocatalysis. Angew Chem Int Ed Engl 2021; 60:26822-26828. [PMID: 34586701 DOI: 10.1002/anie.202112370] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Indexed: 12/17/2022]
Abstract
1,4-Dicarbonyl compounds are intriguing motifs and versatile precursors in numerous pharmaceutical molecules and bioactive natural compounds. Direct incorporation of two carbonyl groups into a double bond at both ends is straightforward, but also challenging. Represented herein is the first example of 1,2-dicarbonylation of alkenes by photocatalysis. Key to success is that N(n-Bu)4 + not only associates with the alkyl anion to avoid protonation, but also activates the α-keto acid to undergo electrophilic addition. The α-keto acid is employed both for acyl generation and electrophilic addition. By tuning the reductive and electrophilic ability of the acyl precursor, unsymmetric 1,4-dicarbonylation is achieved for the first time. This metal-free, redox-neutral and regioselective 1,2-dicarbonylation of alkenes is executed by a photocatalyst for versatile substrates under extremely mild conditions and shows great potential in biomolecular and drug molecular derivatization.
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Affiliation(s)
- Yuan-Yuan Cheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ji-Xin Yu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Tao Lei
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hong-Yu Hou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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8
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Cheng Y, Yu J, Lei T, Hou H, Chen B, Tung C, Wu L. Direct 1,2‐Dicarbonylation of Alkenes towards 1,4‐Diketones via Photocatalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202112370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yuan‐Yuan Cheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 P. R. China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Ji‐Xin Yu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 P. R. China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Tao Lei
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 P. R. China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Hong‐Yu Hou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 P. R. China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 P. R. China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Chen‐Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 P. R. China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Li‐Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 P. R. China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 P. R. China
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9
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Zhou L, Sun M, Zhou F, Deng G, Yang Y, Liang Y. Atmosphere-Controlled Palladium-Catalyzed Divergent Decarboxylative Cyclization of 2-Iodobiphenyls and α-Oxocarboxylic Acids. Org Lett 2021; 23:7150-7155. [PMID: 34463519 DOI: 10.1021/acs.orglett.1c02559] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel palladium-catalyzed divergent decarboxylative cyclization of 2-iodobiphenyls and α-oxocarboxylic acids utilizing the atmosphere as a controlled switch is reported. Under the protection of a nitrogen atmosphere, tribenzotropones are synthesized by a [4 + 3] decarboxylative cyclization. Employing a palladium/O2 system enables a [4 + 2] decarboxylative cyclization to assemble triphenylenes. Notably, preliminary mechanistic studies indicate that the formation of triphenylenes involves a double decarboxylation.
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Affiliation(s)
- Liwei Zhou
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, People's Republic of China
| | - Mingjie Sun
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, People's Republic of China
| | - Fengru Zhou
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, People's Republic of China
| | - Guobo Deng
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, People's Republic of China
| | - Yuan Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, People's Republic of China
| | - Yun Liang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, People's Republic of China
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10
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Rahaman A, Kumar Singh A, Gupta A, Bhadra S. Catalytic N‐Acylation of Cyclic Amines by Arylglyoxylic Acids via Radical‐Radical Cross‐Coupling. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ajijur Rahaman
- Inorganic Materials and Catalysis Division CSIR-Central Salt and Marine Chemicals Research Institute G.B. Marg Bhavnagar 364002, Gujarat India
| | - Anupam Kumar Singh
- Inorganic Materials and Catalysis Division CSIR-Central Salt and Marine Chemicals Research Institute G.B. Marg Bhavnagar 364002, Gujarat India
| | - Aniket Gupta
- Inorganic Materials and Catalysis Division CSIR-Central Salt and Marine Chemicals Research Institute G.B. Marg Bhavnagar 364002, Gujarat India
| | - Sukalyan Bhadra
- Inorganic Materials and Catalysis Division CSIR-Central Salt and Marine Chemicals Research Institute G.B. Marg Bhavnagar 364002, Gujarat India
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11
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Zhou L, Qiao S, Zhou F, Xuchen X, Deng G, Yang Y, Liang Y. α-Oxocarboxylic Acids as Three-Carbon Insertion Units for Palladium-Catalyzed Decarboxylative Cascade Synthesis of Diverse Fused Heteropolycycles. Org Lett 2021; 23:2878-2883. [DOI: 10.1021/acs.orglett.1c00493] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Liwei Zhou
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Shujia Qiao
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Fengru Zhou
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Xinyu Xuchen
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Guobo Deng
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yuan Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yun Liang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
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12
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Lu WQ, Zhou DB, Yin ZC, Liu QS, Wang GW. A copper-promoted synthesis of epoxy-bridged [60]fullerene-fused lactones and further derivatization. Chem Commun (Camb) 2021; 57:7043-7046. [PMID: 34170275 DOI: 10.1039/d1cc02669k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A facile copper-promoted decarboxylative annulation of [60]fullerene (C60) with two identical α-oxocarboxylic acids via an unprecedented cascade addition pathway has been exploited to synthesize the unique epoxy-bridged C60-fused lactones for the first time. Further transformations into the rare epoxy-bridged C60-fused hemiacetals and bicyclic-fused 1,2,3,4-adducts as well as application in a perovskite solar cell device of the obtained products have also been demonstrated. The structures of the epoxy-bridged C60-fused lactones and derived reductive products have been unequivocally established by single-crystal X-ray crystallography. Plausible reaction mechanisms leading to the observed products are proposed.
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Affiliation(s)
- Wen-Qiang Lu
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Dian-Bing Zhou
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Zheng-Chun Yin
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Qing-Song Liu
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Guan-Wu Wang
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China. and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, P. R. China
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13
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Zhou K, Mao Y, Wu F, Lou S, Xu D. Recent Advances in C—H Bond Functionalization under Mechanochemical Conditions. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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14
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Kumar P, Nagtilak PJ, Kapur M. Transition metal-catalyzed C–H functionalizations of indoles. NEW J CHEM 2021. [DOI: 10.1039/d1nj01696b] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review summarises a wide range of transformations on the indole skeleton, including arylation, alkenylation, alkynylation, acylation, nitration, borylation, and amidation, using transition-metal catalyzed C–H functionalization as the key step.
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Affiliation(s)
- Pravin Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Prajyot Jayadev Nagtilak
- 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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15
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Talukdar R. Rapid access to 3-acyl indoles using ethyl acetate/triflic acid couple as the acylium donor and Cu(OAc) 2 catalysed aerial oxidation of indole benzoins. Org Biomol Chem 2020; 18:8876-8880. [PMID: 33103169 DOI: 10.1039/d0ob01977a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Esters are potential acyl donors but are relatively unexplored for that purpose. A facile installation of acyl groups at the C-3 position of indoles under triflic acid catalysed conditions with easily available and cheap esters as new acylating agents is described herein. Furthermore, heterocycles like N-protected pyrrole, furan and thiophene were also suitable substrates for similar C-2 acylation. Analogous C-3 benzoylated products of indole were obtained, albeit in lower yields, by using methyl benzoate as a benzoyl donor. The benzoylated products were synthesised in much better yields via a copper(ii) catalysed aerial oxidation of indole containing benzoins.
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Affiliation(s)
- Ranadeep Talukdar
- Molecular Synthesis and Drug Discovery Laboratory, Centre of Biomedical Research, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow-226014, India.
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16
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Jaiswal A, Sharma AK, Singh KN. Synthesis of 3-acylindoles via copper-mediated oxidative decarbethoxylation of ethyl arylacetates. Org Biomol Chem 2020; 18:1623-1628. [PMID: 32037416 DOI: 10.1039/c9ob02550b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient regioselective C-3 acylation of free indoles (N-H) has been accomplished via oxidative decarbethoxylation of easily available ethyl arylacetates using Cu(OAc)2 and KOtBu in DMSO.
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Affiliation(s)
- Anjali Jaiswal
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Anup Kumar Sharma
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Krishna Nand Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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17
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Zhang A, Meng T, Wang W, Liu X, Zhu Y, Liu L. Palladium‐catalyzed cyclization reaction of N‐(2‐Haloaryl)alkynylimines: Synthesis of 3‐acylindoles using water as the sole solvent and oxygen source. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- An‐An Zhang
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
| | - Tuanjie Meng
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
| | - Wenli Wang
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
| | - Xueli Liu
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
| | - Yupei Zhu
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
| | - Lantao Liu
- College of Chemistry and Chemical EngineeringShangqiu Normal University Shangqiu 47600, P. R. China
- College of ChemistryZhengzhou University Zhengzhou 450001 P. R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of ChemistryPeking University Beijing 100871 P. R. China
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18
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Tran PH, Nguyen TDT, Tu TAT, Le TN. Magnetically recoverable γ-Fe2O3 nanoparticles as a highly active catalyst for Friedel–Crafts benzoylation reaction under ultrasound irradiation. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.04.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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19
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Yang L, Liu Z, Li Y, Lei N, Shen Y, Zheng K. Electrochemically Enabled C3-Formylation and -Acylation of Indoles with Aldehydes. Org Lett 2019; 21:7702-7707. [PMID: 31553193 DOI: 10.1021/acs.orglett.9b02433] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Reported herein is an effective strategy for oxidative cross-coupling of indoles with various aldehydes. The strategy is based on a two-step transformation via a well-known Mannich-type reaction and a C-N bond cleavage for carbonyl introduction. The key step-the C-N bond cleavage of the Mannich product-was enabled by electrochemistry. This strategy (with over 40 examples) ensures excellent functional-group tolerance as well as late-stage functionalization of pharmaceutical molecules.
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Affiliation(s)
- Liquan Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Zhaoran Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Yujun Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Ning Lei
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Yanling Shen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Ke Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
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20
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Liu Y, Chen Z, Wang QL, Zhou CS, Xiong BQ, Yang CA, Tang KW. Synthesis of 2-Acyl-3,4-dihydronaphthalenes by Silver-Promoted Oxidative C–C σ-Bond Acylation/Arylation of Alkylidenecyclopropanes with α-Ketoacids. J Org Chem 2019; 84:9984-9994. [DOI: 10.1021/acs.joc.9b01125] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Zan Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Qiao-Lin Wang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Cong-Shan Zhou
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Chang-An Yang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
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21
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Penteado F, Lopes EF, Alves D, Perin G, Jacob RG, Lenardão EJ. α-Keto Acids: Acylating Agents in Organic Synthesis. Chem Rev 2019; 119:7113-7278. [DOI: 10.1021/acs.chemrev.8b00782] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Filipe Penteado
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eric F. Lopes
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Raquel G. Jacob
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
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22
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Kilic H, Dalkilic O. The Reaction of Donor‐Acceptor Cyclopropanes with 4,7‐Dihydroindole: A New Protocol for the Synthesis of Divergent C2‐Alkylated Indoles. ChemistrySelect 2019. [DOI: 10.1002/slct.201900268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Haydar Kilic
- Department of ChemistryFaculty of SciencesAtatürk University Erzurum 25240 Turkey
- Oltu Vocational Training SchoolAtatürk University Erzurum 25400 Turkey
| | - Oguzhan Dalkilic
- Department of ChemistryFaculty of SciencesAtatürk University Erzurum 25240 Turkey
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23
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Ieronimo G, Palmisano G, Maspero A, Marzorati A, Scapinello L, Masciocchi N, Cravotto G, Barge A, Simonetti M, Ameta KL, Nicholas KM, Penoni A. A novel synthesis of N-hydroxy-3-aroylindoles and 3-aroylindoles. Org Biomol Chem 2019; 16:6853-6859. [PMID: 30065979 DOI: 10.1039/c8ob01471j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A straightforward indole synthesis via annulation of C-nitrosoaromatics with conjugated terminal alkynones was realised achieving a simple, highly regioselective, atom- and step economical access to 3-aroylindoles in moderate to good yields. Further functionalizations of indole scaffolds were investigated and an easy way to JWH-018, a synthetic cannabinoid, was achieved.
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Affiliation(s)
- Gabriella Ieronimo
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, via Valleggio 9, 22100, Como, Italy.
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24
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Yu J, Zhang C, Yang X, Su W. Decarboxylative acylation of N-free indoles enabled by a catalytic amount of copper catalyst and liquid-assisted grinding. Org Biomol Chem 2019; 17:4446-4451. [DOI: 10.1039/c9ob00622b] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A mechanochemically Cu(ii)-catalyzed decarboxylative acylation of N-free indoles with O2 as a terminal oxidant was developed for the mild synthesis of 3-acylindoles.
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Affiliation(s)
- Jingbo Yu
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou 310014
- PR China
| | - Chao Zhang
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou 310014
- PR China
| | - Xinjie Yang
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou 310014
- PR China
| | - Weike Su
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou 310014
- PR China
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25
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Zhang J, Wu M, Fan J, Xu Q, Xie M. Selective C–H acylation of indoles with α-oxocarboxylic acids at the C4 position by palladium catalysis. Chem Commun (Camb) 2019; 55:8102-8105. [DOI: 10.1039/c9cc03893k] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The first catalytic C–H acylation of indoles at the C4 position with α-oxocarboxylic acids by palladium catalysis is described.
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Affiliation(s)
- Jitan Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Manyi Wu
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Jian Fan
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Qiaoqiao Xu
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Meihua Xie
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
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26
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Abenante L, Penteado F, Vieira MM, Perin G, Alves D, Lenardão EJ. Ultrasound-enhanced Ag-catalyzed decarboxylative coupling between α-keto acids and disulfides for the synthesis of thioesters. ULTRASONICS SONOCHEMISTRY 2018; 49:41-46. [PMID: 30060985 DOI: 10.1016/j.ultsonch.2018.07.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/09/2018] [Accepted: 07/11/2018] [Indexed: 05/14/2023]
Abstract
Herein, we described the ultrasound-assisted synthesis of thioesters via the Ag-catalyzed radical oxidative decarboxylation of α-keto acids, in the presence of disulfides. This protocol takes advantage of the sonication to prepare the title compounds in moderate to very good yields, in only 20 min of reaction. The positive effect of ultrasonic irradiation is attributed to both, the high mass transfer efficiency and to the induced radical formation in the reaction medium.
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Affiliation(s)
- Laura Abenante
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Filipe Penteado
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Marcelo M Vieira
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eder J Lenardão
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil.
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27
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Gandeepan P, Müller T, Zell D, Cera G, Warratz S, Ackermann L. 3d Transition Metals for C-H Activation. Chem Rev 2018; 119:2192-2452. [PMID: 30480438 DOI: 10.1021/acs.chemrev.8b00507] [Citation(s) in RCA: 1415] [Impact Index Per Article: 235.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
C-H activation has surfaced as an increasingly powerful tool for molecular sciences, with notable applications to material sciences, crop protection, drug discovery, and pharmaceutical industries, among others. Despite major advances, the vast majority of these C-H functionalizations required precious 4d or 5d transition metal catalysts. Given the cost-effective and sustainable nature of earth-abundant first row transition metals, the development of less toxic, inexpensive 3d metal catalysts for C-H activation has gained considerable recent momentum as a significantly more environmentally-benign and economically-attractive alternative. Herein, we provide a comprehensive overview on first row transition metal catalysts for C-H activation until summer 2018.
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Affiliation(s)
- Parthasarathy Gandeepan
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Thomas Müller
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Daniel Zell
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Gianpiero Cera
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Svenja Warratz
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
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28
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Lajarín-Cuesta R, Arribas RL, Nanclares C, García-Frutos EM, Gandía L, de los Ríos C. Design and synthesis of multipotent 3-aminomethylindoles and 7-azaindoles with enhanced protein phosphatase 2A-activating profile and neuroprotection. Eur J Med Chem 2018; 157:294-309. [DOI: 10.1016/j.ejmech.2018.07.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/09/2018] [Accepted: 07/11/2018] [Indexed: 02/02/2023]
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29
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Sun L, Yao A, Wang H, Zhang L, Zeng L, Huang Z, Gao M, Lei A. Oxidation-Induced para
-Selective Formylation of N,N-Substituted Aniline. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Li Sun
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal, University; Nanchang 330022, Jiangxi P. R. China
| | - Anjin Yao
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal, University; Nanchang 330022, Jiangxi P. R. China
| | - Haiyan Wang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal, University; Nanchang 330022, Jiangxi P. R. China
| | - Limei Zhang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal, University; Nanchang 330022, Jiangxi P. R. China
| | - Lizhen Zeng
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal, University; Nanchang 330022, Jiangxi P. R. China
| | - Zhiliang Huang
- College of Chemistry and Molecular Sciences, the Institute for Advanced, Studies (IAS); Wuhan University; Wuhan, Hubei 430072 P. R. China
| | - Meng Gao
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal, University; Nanchang 330022, Jiangxi P. R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal, University; Nanchang 330022, Jiangxi P. R. China
- College of Chemistry and Molecular Sciences, the Institute for Advanced, Studies (IAS); Wuhan University; Wuhan, Hubei 430072 P. R. China
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30
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Zhang T, Wang NX, Xing Y. Advances in Decarboxylative Oxidative Coupling Reaction. J Org Chem 2018; 83:7559-7565. [DOI: 10.1021/acs.joc.8b01080] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tong Zhang
- Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, Beijing 100190, China
| | - Nai-Xing Wang
- Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, Beijing 100190, China
| | - Yalan Xing
- Department of Chemistry, William Paterson University of New Jersey, New Jersey 07470, United States
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31
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Kittikool T, Thupyai A, Phomphrai K, Yotphan S. Copper/Persulfate-Promoted Oxidative Decarboxylative C−H Acylation of Pyrazolones with α-Oxocarboxylic Acids: Direct Access to 4-Acylpyrazolones under Mild Conditions. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800464] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tanakorn Kittikool
- Center of Excellence for Innovation in Chemistry (PERCH-CIC); Department of Chemistry; Faculty of Science; Mahidol University; Bangkok 10400 Thailand
| | - Akkharaphong Thupyai
- Center of Excellence for Innovation in Chemistry (PERCH-CIC); Department of Chemistry; Faculty of Science; Mahidol University; Bangkok 10400 Thailand
| | - Khamphee Phomphrai
- Department of Materials Science and Engineering; School of Molecular Science and Engineering; Vidyasirimedhi Institute of Science and Technology (VISTEC); Wangchan Rayong 21210 Thailand
| | - Sirilata Yotphan
- Center of Excellence for Innovation in Chemistry (PERCH-CIC); Department of Chemistry; Faculty of Science; Mahidol University; Bangkok 10400 Thailand
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32
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Shi X, Chen X, Wang M, Zhang X, Fan X. Regioselective Synthesis of Acylated N-Heterocycles via the Cascade Reactions of Saturated Cyclic Amines with 2-Oxo-2-arylacetic Acids. J Org Chem 2018; 83:6524-6533. [DOI: 10.1021/acs.joc.8b00805] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xiaonan Shi
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xi Chen
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Muhua Wang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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33
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Wang Q, Zhang X, Fan X. Synthesis of 2-aminobenzophenones through acylation of anilines with α-oxocarboxylic acids assisted by tert-butyl nitrite. Org Biomol Chem 2018; 16:7737-7747. [DOI: 10.1039/c8ob01846d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly facile all-in-one-pot synthesis of 2-aminobenzophenones directly from anilines, tert-butyl nitrite and α-oxocarboxylic acids under the catalysis of Pd(OAc)2 is presented.
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Affiliation(s)
- Qianqian Wang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
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34
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Li LH, Niu ZJ, Liang YM. New Friedel–Crafts strategy for preparing 3-acylindoles. Org Biomol Chem 2018; 16:7792-7796. [PMID: 30325392 DOI: 10.1039/c8ob02094a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new Friedel–Crafts acylation generates diverse high-biological value 3-acylindoles, and forms a new C–C bond under transition-metal-free conditions.
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Affiliation(s)
- Lian-Hua Li
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Zhi-Jie Niu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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35
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Mirfarjood SA, Mamaghani M, Sheykhan M. Copper-Exchanged Magnetic-FAp: Surface Catalysis in Decarboxylative Coupling of α
-Oxocarboxylic Acids with Formamides. ChemistrySelect 2017. [DOI: 10.1002/slct.201701438] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
| | | | - Mehdi Sheykhan
- Department of Chemistry; University of Guilan, P.O. Box 41335-1914; Rasht Iran
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36
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Tran PH, Nguyen HT, Hansen PE, Le TN. Greener Friedel-Crafts Acylation Using Microwave-Enhanced Reactivity of Bismuth Triflate in the Friedel-Crafts Benzoylation of Aromatic Compounds with Benzoic Anhydride. ChemistrySelect 2017. [DOI: 10.1002/slct.201601681] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Phuong Hoang Tran
- Department of Organic Chemistry, Faculty of Chemistry; University of Science, Vietnam National University; Hochiminh city 70000 Vietnam
| | - Hai Truong Nguyen
- Department of Organic Chemistry, Faculty of Chemistry; University of Science, Vietnam National University; Hochiminh city 70000 Vietnam
| | - Poul Erik Hansen
- Department of Science and Environment; Roskilde University, POB 260; Roskilde DK- 4000 Denmark
| | - Thach Ngoc Le
- Department of Organic Chemistry, Faculty of Chemistry; University of Science, Vietnam National University; Hochiminh city 70000 Vietnam
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37
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Singh S, Butani HH, Vachhani DD, Shah A, Van der Eycken EV. Ruthenium-catalysed one-pot regio- and diastereoselective synthesis of pyrrolo[1,2-a]indoles via cascade C–H functionalization/annulation. Chem Commun (Camb) 2017; 53:10812-10815. [DOI: 10.1039/c7cc06276a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic, regioselective and diastereoselective synthesis of pyrrolo[1,2-a]indoles through a cascade C–H activation and cyclization process.
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Affiliation(s)
- Sukhdev Singh
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- Celestijnenlaan 200F
- Leuven
| | - Himanshu H. Butani
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- Celestijnenlaan 200F
- Leuven
| | | | - Anamik Shah
- Department of Chemistry
- Saurashtra University
- Rajkot
- India
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- Celestijnenlaan 200F
- Leuven
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38
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Zeng X, Liu C, Wang X, Zhang J, Wang X, Hu Y. Silver-catalyzed decarboxylative acylation of quinoxalin-2(1H)-ones with α-oxo-carboxylic acids. Org Biomol Chem 2017; 15:8929-8935. [DOI: 10.1039/c7ob02187a] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel silver-catalyzed decarboxylative acylation of α-oxo-carboxylic acids was developed, by which various 3-acyl quinoxalin-2(1H)-ones were synthesized by direct C–H bond acylation of quinoxalin-2(1H)-ones.
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Affiliation(s)
- Xiaobao Zeng
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Chulong Liu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Xingyong Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Jianlan Zhang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Xinyan Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Yuefei Hu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
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39
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Nakamura A, Tanaka S, Imamiya A, Takane R, Ohta C, Fujimura K, Maegawa T, Miki Y. Synthesis of 3-acylindoles by oxidative rearrangement of 2-aminochalcones using a hypervalent iodine reagent and cyclization sequence. Org Biomol Chem 2017; 15:6702-6705. [PMID: 28749517 DOI: 10.1039/c7ob01536d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An efficient one-pot 3-acylindole synthesis by oxidative rearrangement of 2-aminochalcones and sequential cyclization has been developed.
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Affiliation(s)
- Akira Nakamura
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Satoshi Tanaka
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Akira Imamiya
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Reo Takane
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Chiaki Ohta
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Kazuma Fujimura
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Tomohiro Maegawa
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Yasuyoshi Miki
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
- Research Organization of Science and Technology
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40
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Feng H, Zhao P, Huang L, Sun Z, Tong M. Highly Selective Synergistic Copper(I/II)-Catalyzed A3Cross Coupling/Decarboxylative A3Domino Reactions in Water. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600524] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Huangdi Feng
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road Shanghai 201620 China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Panfeng Zhao
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road Shanghai 201620 China
| | - Liliang Huang
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road Shanghai 201620 China
| | - Zhihua Sun
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road Shanghai 201620 China
| | - Minchao Tong
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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41
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Li X, Liang D, Huang W, Zhou H, Li Z, Wang B, Ma Y, Wang H. Visible light-induced carbonylation of indoles with arylsulfonyl chlorides and CO. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.11.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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42
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Zha D, Li H, Wang L. Silver-Promoted Cascade Reaction of 4-Hydroxycoumarins with α-Keto Acids under Microwave Irradiation: One-Step Construction of Quaternary Stereocenters. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dandan Zha
- Department of Chemistry; Huaibei Normal University; 235000 Huaibei Anhui P. R. China
| | - Hongji Li
- Department of Chemistry; Huaibei Normal University; 235000 Huaibei Anhui P. R. China
| | - Lei Wang
- Department of Chemistry; Huaibei Normal University; 235000 Huaibei Anhui P. R. China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; 200032 Shanghai P. R. China
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43
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Prakash R, Gogoi S. Copper-Catalyzed C-N, C-O Coupling Reaction of Arylglyoxylic Acids with Isatins. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600516] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Rashmi Prakash
- Chemical Sciences & Technology Division; CSIR-North East Institute of Science and Technology; Jorhat - 785006, AcSIR India
| | - Sanjib Gogoi
- Chemical Sciences & Technology Division; CSIR-North East Institute of Science and Technology; Jorhat - 785006, AcSIR India
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44
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45
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Zhang ZW, Xue H, Li H, Kang H, Feng J, Lin A, Liu S. Collective Synthesis of 3-Acylindoles, Indole-3-carboxylic Esters, Indole-3-sulfinic Acids, and 3-(Methylsulfonyl)indoles from Free (N-H) Indoles via Common N-Indolyl Triethylborate. Org Lett 2016; 18:3918-21. [PMID: 27457258 DOI: 10.1021/acs.orglett.6b01970] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A general and direct C3 functionalization of free (N-H) indoles with readily available electrophiles such as acid chlorides, chloroformates, thionyl chloride, and methylsulfonyl chloride via a common N-indolyl triethylborate intermediate is reported. The reaction proceeds smoothly under mild conditions in up to 93% yield. Indoles with substituents at the C2, C4, C5, C6, and C7 positions are well tolerated. The easy accessibility of a variety of important 3-acylindoles, indole-3-carboxylic esters, indole-3-sulfinic acids, and 3-(methylsulfonyl)indoles demonstrates the high degree of compatibility and practicability of this method.
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Affiliation(s)
- Zhi-Wei Zhang
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology , Shijiazhuang 050018, P. R. China
| | - Hong Xue
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology , Shijiazhuang 050018, P. R. China
| | - Hailing Li
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology , Shijiazhuang 050018, P. R. China
| | - Huaiping Kang
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology , Shijiazhuang 050018, P. R. China
| | - Juan Feng
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology , Shijiazhuang 050018, P. R. China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, P. R. China
| | - Shouxin Liu
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology , Shijiazhuang 050018, P. R. China
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46
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Hao XQ, Du C, Zhu X, Li PX, Zhang JH, Niu JL, Song MP. Cobalt(II)-Catalyzed Decarboxylative C–H Activation/Annulation Cascades: Regioselective Access to Isoquinolones and Isoindolinones. Org Lett 2016; 18:3610-3. [DOI: 10.1021/acs.orglett.6b01632] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xin-Qi Hao
- College of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Cong Du
- College of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Peng-Xiang Li
- College of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jia-Heng Zhang
- College of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jun-Long Niu
- College of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
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47
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Gu LJ, Wang YS, Zhang HT, Tang HJ, Li GP, Yuan ML. Palladium-Catalyzed Carbonylation of Indoles using Aryl Formates as Bifunctional Reagents: A Route to Indol-3-yl Aryl Ketones. ChemCatChem 2016. [DOI: 10.1002/cctc.201600433] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Li-Jun Gu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; State Ethnic Affairs Commission & Ministry of Education; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
- Engineering Research Center of Biopolymer Functional Materials of Yunnan; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
| | - Yu-Shen Wang
- Shandong Changyi Company Limited; Changyi Shandong 261300 P.R. China
| | - Hong-Tao Zhang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; State Ethnic Affairs Commission & Ministry of Education; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
| | - Huai-Jun Tang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; State Ethnic Affairs Commission & Ministry of Education; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
| | - Gan-Peng Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; State Ethnic Affairs Commission & Ministry of Education; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
| | - Ming-Long Yuan
- Engineering Research Center of Biopolymer Functional Materials of Yunnan; Yunnan Minzu University; Kunming Yunnan 650500 P.R. China
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48
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Zhang L, Wang Z, Guo P, Sun W, Li YM, Sun M, Hua C. Palladium-catalyzed ortho-acylation of N-Nitrosoanilines with α-oxocarboxylic acids: a convenient method to synthesize N-Nitroso ketones and indazoles. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.04.096] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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49
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Yao SJ, Ren ZH, Wang YY, Guan ZH. Friedel–Crafts Fluoroacetylation of Indoles with Fluorinated Acetic Acids for the Synthesis of Fluoromethyl Indol-3-yl Ketones under Catalyst- and Additive-Free Conditions. J Org Chem 2016; 81:4226-34. [DOI: 10.1021/acs.joc.6b00580] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Shun-Jiang Yao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, People’s Republic of China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, People’s Republic of China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, People’s Republic of China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, People’s Republic of China
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50
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