1
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Huang J, Li X, Wei Y, Lei Z, Xu L. Organoboron/iodide-catalyzed photoredox N-functionalization of NH-sulfoximines/sulfonimidamides. Chem Commun (Camb) 2023; 59:13643-13646. [PMID: 37905454 DOI: 10.1039/d3cc04351g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
An aminoquinolate diarylboron (AQDAB) and tetrabutylammonium iodide (TBAI) co-catalyzed photoredox process for N-functionalization of NH-sulfoximines/sulfonimidamides has been successfully developed. This protocol can afford the corresponding N-sulfenylated and N-phosphonylated products in good to excellent yields under conditions without metallic (photo)catalysts, external oxidants, or acidic/basic additives. A wide range of functional groups are tolerated, and the N-phosphonylated products of NH-sulfonimidamides have been reported for the first time.
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Affiliation(s)
- Jiawei Huang
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, China.
| | - Xiaoman Li
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, China.
| | - Yu Wei
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, China.
| | - Zhigang Lei
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, China.
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Box 266, Beijing 100029, China.
| | - Liang Xu
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, China.
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2
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Li J, Liu C, Zhao Z, Wang X, Chen D, Yue K, Chen S, Jin M, Shan Y. Halogen cation-promoted and solvent-regulated electrophilic cyclization for the regioselective synthesis of 3-haloquinolines and 3-halospirocyclohexadienones. Org Biomol Chem 2023; 21:2440-2446. [PMID: 36876461 DOI: 10.1039/d3ob00168g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
A novel approach for the production of halogen cations through the reaction of halogens with silver ions is described in this paper. On this basis, the regioselective synthesis of 3-haloquinolines and 3-halospirocyclohexadienones is realized through solvent regulation. The gram-scale reaction and the compatibility of complex substrates demonstrate the synthetic potential of this protocol, which will be an appealing strategy in organic synthesis.
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Affiliation(s)
- Jianming Li
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Chengxiao Liu
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Zihan Zhao
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Xin Wang
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Dianpeng Chen
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Kaiyuan Yue
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Sihan Chen
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Ming Jin
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Yingying Shan
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
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3
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Lv Y, Lai J, Pu W, Wang J, Han W, Wang A, Zhang M, Wang X. Metal-Free Highly Regioselective 1,4-Sulfonyliodination of 1,3-Enynes. J Org Chem 2023; 88:2034-2045. [PMID: 36749192 DOI: 10.1021/acs.joc.2c02257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Herein, a novel, practical, and green synthetic method using readily available 1,3-enynes with sulfonyl hydrazides and I2 through tert-butyl hydroperoxide (TBHP)-mediated 1,4-sulfonyliodination has been developed for synthesizing various tetrasubstituted allenyl iodides under metal-free conditions. Notably, the proposed method exhibits a broad substrate scope, operational simplicity, tolerance to air, high functional-group tolerance, satisfactory yields, and excellent regioselectivity as well as involves the use of cost-effective reagents such as green oxidants.
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Affiliation(s)
- Yunhe Lv
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Junrong Lai
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Weiya Pu
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Jin Wang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Wanru Han
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Axue Wang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Mengyue Zhang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Xue Wang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
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4
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Sun K, Zhang Y, Tian M, Wang Z, Zhao D, Wang S, Tang S, Zhang Z. Radical annulation of a designed diene system: access to nitro-benzo[ b]azepines. Chem Commun (Camb) 2022; 58:9658-9661. [PMID: 35943410 DOI: 10.1039/d2cc02688k] [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
Herein, we describe a novel O2N˙-triggered ordered addition 7-endo cyclization reaction with excellent chemo- and regioselectivity. With such a strategy, structurally diverse nitro-benzo[b]azepines were prepared with 28 examples. Large-scale operation and handy N-Ts and N-Cbz deprotection reveal the promising utility of this methodology. Mechanistic studies suggest that the reaction proceeds through a radical pathway.
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Affiliation(s)
- Kai Sun
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Yan Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Miao Tian
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Zhichuan Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Dongyang Zhao
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Shilong Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Shi Tang
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, 416000, China
| | - Zhen Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
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5
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Slathia N, Gupta A, Kapoor K. I2/ TBHP Reagent System: A Modern Paradigm for Organic Transformations. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200460] [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)
| | | | - Kamal Kapoor
- University of Jammu Department of Chemistry Department of Chemistry 180006 Jammu INDIA
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6
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Jia C, Wu N, Li G, Cui X. meta-Allylation of Arenes via Ruthenium-Catalyzed Cross-Dehydrogenative Coupling. J Org Chem 2022; 87:6934-6941. [PMID: 35486707 DOI: 10.1021/acs.joc.2c00332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A successful example of oxidative meta-dehydrogenative allylation of arenes with alkenes has been developed using Ru(PPh3)3Cl2 as a catalyst and DTBP as an oxidant. In the allylation process, pyrimidines, pyrazoles, and purines, found widely in nucleosides, were effective auxiliary groups. Gram-scale experiments took place smoothly under optimized conditions. Mechanistic studies indicated that ruthenium-catalyzed meta-dehydrogenative allylation was a free-radical process. The allylation process developed herein provides an efficient and practical strategy to prepare versatile meta-allylated arenes.
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Affiliation(s)
- Chunqi Jia
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Nini Wu
- College of Chemistry and Chemical Engineering, Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, Anyang Normal University, Anyang 455002, P. R. China
| | - Gang Li
- College of Chemistry and Chemical Engineering, Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, Anyang Normal University, Anyang 455002, P. R. China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
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7
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Recent advances in transition-metal-free C–H functionalization of imidazo[1,2-a]pyridines. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.03.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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8
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Wang D, Zhang L, Xiao F, Mao GJ, Deng GJ. Electrochemical Selective C3-Thiolation of Quinolines. Org Chem Front 2022. [DOI: 10.1039/d2qo00148a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An electrochemical method has been developed to achieve C3-thiolation of quinoline compounds. This new strategy highlights the maximum atom economy, direct conversion and also the use of simple and readily...
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9
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Yang H, Huang N, Wang N, Shen H, Teng F, Liu X, Jiang H, Tan MC, Gui QW. Ultrasound-Assisted Iodination of Imidazo[1,2-α]pyridines Via C-H Functionalization Mediated by tert-Butyl Hydroperoxide. ACS OMEGA 2021; 6:25940-25949. [PMID: 34660956 PMCID: PMC8515396 DOI: 10.1021/acsomega.1c02645] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/05/2021] [Indexed: 05/15/2023]
Abstract
A novel metal catalyst-free and environmentally friendly method for the regioselective iodination of imidazo[1,2-α]pyridines at their C3 position is disclosed, which has a wide substrate scope and could be sustainable. This reaction proceeds through ultrasound acceleration in the presence of a green alcohol solvent. Compared with a conventional heating system, the reaction efficiency and the rate are significantly improved and the iodine atom economy is maximized using ultrasound techniques.
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Affiliation(s)
- Hua Yang
- College
of Bioscience and Biotechnology, Hunan Agricultural
University, Changsha 410128, People’s Republic
of China
| | - Ning Huang
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Nengqing Wang
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Haicheng Shen
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Fan Teng
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Xiaoying Liu
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Hongmei Jiang
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Mei-Chen Tan
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Qing-Wen Gui
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
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10
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11
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He X, Jiang Y, Zhou H, Zhu Q. Direct Phase‐Transition Catalysed Monohalogenation of 8‐Amidoquinolines at C5 Position in Water. ChemistrySelect 2021. [DOI: 10.1002/slct.202100616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xin He
- School of Chemical and Pharmaceutical Engineering Changzhou Institute of Engineering Technology No. 33, Middle Gehu Road Changzhou 213164 P. R. China
| | - Yujia Jiang
- School of Chemical and Pharmaceutical Engineering Changzhou Institute of Engineering Technology No. 33, Middle Gehu Road Changzhou 213164 P. R. China
| | - Haiping Zhou
- School of Chemical and Pharmaceutical Engineering Changzhou Institute of Engineering Technology No. 33, Middle Gehu Road Changzhou 213164 P. R. China
| | - Qihua Zhu
- Jiangsu Key Laboratory of Drug Design and Optimization Department of Medicinal Chemistry China Pharmaceutical University 639 Longmian Avenue Nanjing 211198 China
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12
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Wang K, Hou J, Lv Y, Wei T, Bai R, Xie Y. Electrolyte‐Triggered C5‐Selective Trifluoromethylation and Halogenation of 8‐Aminoquinoline Derivatives. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000650] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Kai Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology 310014 Hangzhou P. R. China
| | - Jiahao Hou
- College of Pharmaceutical Science Zhejiang University of Technology 310014 Hangzhou P. R. China
| | - Yangjing Lv
- College of Pharmaceutical Science Zhejiang University of Technology 310014 Hangzhou P. R. China
| | - Tingting Wei
- College of Pharmaceutical Science Zhejiang University of Technology 310014 Hangzhou P. R. China
| | - Renren Bai
- College of Pharmaceutical Science Zhejiang University of Technology 310014 Hangzhou P. R. China
| | - Yuanyuan Xie
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology 310014 Hangzhou P. R. China
- College of Pharmaceutical Science Zhejiang University of Technology 310014 Hangzhou P. R. China
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13
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Jadhav PM, Rode AB, Kótai L, Pawar RP, Tekale SU. Revisiting applications of molecular iodine in organic synthesis. NEW J CHEM 2021. [DOI: 10.1039/d1nj02560k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Molecular iodine contributes significantly to organic transformations in synthetic organic chemistry. It works effectively due to its mild Lewis acidic character, ability as an oxidizing agent, good moisture stability, and easy availability.
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Affiliation(s)
- Popat M. Jadhav
- Department of Chemistry, Deogiri College, Aurangabad 431 005, Maharashtra, India
| | - Ambadas B. Rode
- Regional Centre for Biotechnology, Faridabad-121 001, Haryana (NCR Delhi), India
| | - László Kótai
- Research Centre for Natural Sciences, ELKH, H-1117, Budapest, Hungary
| | - Rajendra P. Pawar
- Department of Chemistry, Shiv Chhatrapati College, Aurangabad 431005, Maharashtra, India
| | - Sunil U. Tekale
- Department of Chemistry, Deogiri College, Aurangabad 431 005, Maharashtra, India
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14
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Zhuge J, Jiang Z, Jiang W, Histand G, Lin D. Iodine-catalyzed oxidative functionalization of purines with (thio)ethers or methylarenes for the synthesis of purin-8-one analogues. Org Biomol Chem 2021; 19:5121-5126. [PMID: 34018534 DOI: 10.1039/d1ob00118c] [Citation(s) in RCA: 3] [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 oxidative functionalization of purine-like substrates with (thio)ethers or methylarenes under mild conditions is described. Using I2 as the catalyst, and TBHP as the oxidant, this protocol provides a valuable synthetic tool for the assembly of a wide range of 9-alkyl(benzyl)purin-8-one derivatives with high atom- and step-economy and exceptional functional group tolerance.
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Affiliation(s)
- Juanping Zhuge
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Ziyang Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Wei Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Gary Histand
- International School of Advanced Materials, South China University of Technology, Guangzhou 510640, China
| | - Dongen Lin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
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15
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Singh D, Tali JA, Kumar G, Shankar R. Metal-free oxidative decarbonylative halogenation of fused imidazoles. NEW J CHEM 2021. [DOI: 10.1039/d1nj04440k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient strategy has been developed for the deformylative halogenation of carbaldehyde imidazo-fused heterocycles in the presence of TBHP controlled by temperature.
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Affiliation(s)
- Davinder Singh
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Javeed Ahmad Tali
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Gulshan Kumar
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ravi Shankar
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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16
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Liu Y, Yang Z, Li Y, Liu Y, Liu P. Solvent Mediated Selective C—H Bond Iodination of Pyrrolo[1,2-a]quinoxaline. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202107033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Li G, Gao Y, Jia C, Wang S, Yan B, Fang Y, Yang S. Meta-Dehydrogenative Alkylation of Arenes with Ethers, Ketones, and Esters Catalyzed by Ruthenium. Org Lett 2020; 22:8758-8763. [PMID: 33151082 DOI: 10.1021/acs.orglett.0c02698] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A meta-dehydrogenative alkylation of arenes with cyclic ethers, ketones, and esters catalyzed by ruthenium is achieved in the presence of a di-tert-butyl peroxide (DTBP) oxidant. Interestingly, when quinoline and isoquinoline are employed as the directing group, or a chain ether as alkylation reagent, the system produces Minisci reaction products. Mechanistic study indicates that meta-dehydrogenative alkylation is a radical process initiated by DTBP with the assistance of a CAr-Ru bond ortho/para-directing effect.
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Affiliation(s)
- Gang Li
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P.R. China
| | - Yuan Gao
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P.R. China
| | - Chunqi Jia
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P.R. China
| | - Shichong Wang
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P.R. China
| | - Bingxu Yan
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P.R. China
| | - Yu Fang
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P.R. China
| | - Suling Yang
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P.R. China
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18
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Dai E, Dong Y, Kong R, Liu G, Dong Y, Wu Q, Liang D, Ma Y. Transition-metal-free mono- or dinitration of protected anilines. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1752730] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Enrui Dai
- School of Chemistry and Chemical Engineering, Kunming University, Kunming, China
| | - Yongrui Dong
- School of Chemistry and Chemical Engineering, Kunming University, Kunming, China
| | - Rui Kong
- School of Chemistry and Chemical Engineering, Kunming University, Kunming, China
| | - Guangzhang Liu
- School of Chemistry and Chemical Engineering, Kunming University, Kunming, China
| | - Ying Dong
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Qiong Wu
- Yunnan Engineering Technology Research Center for Plastic Films, Kunming, China
| | - Deqiang Liang
- School of Chemistry and Chemical Engineering, Kunming University, Kunming, China
- Yunnan Engineering Technology Research Center for Plastic Films, Kunming, China
| | - Yinhai Ma
- School of Chemistry and Chemical Engineering, Kunming University, Kunming, China
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19
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Liu J, Gao Y, Zhu Y, Zhu J, Wang C, Rui X, Yang K, Si D, Lin J, Yuan D, Wen H, Li W. Rhodium(III)-Catalyzed Oxidative Annulation of 4-Aminoquinolines and Acrylate through Two Consecutive C(sp 2)-H Activations. Org Lett 2020; 22:2657-2662. [PMID: 32186885 DOI: 10.1021/acs.orglett.0c00630] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The C-H annulation of the five-position of quinolines and acrylates to afford heterocycles is an active field of research in organic synthesis. Herein the annulation of 4-aminoquinolines with acrylates through two consecutive C-H activations catalyzed by Rh(III) is described. The reaction proceeds with high atom efficiency under mild reaction conditions, and this protocol will provide appealing strategies for the synthesis of fused quinoline heterocycles.
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Affiliation(s)
- Jian Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yi Gao
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yehua Zhu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Junru Zhu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Chao Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiyan Rui
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Kundi Yang
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Dongjuan Si
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jiamin Lin
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Dandan Yuan
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hongmei Wen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wei Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
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20
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Chen D, Li J, Cui P, Shan Y, Zhao Y, Qiu G. Tandem Oxidative Radical Halogenated Addition of Alkynyl Imines: Regioselective Synthesis of 3-Haloquinolines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901395] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Dianpeng Chen
- Chemistry and Chemical Engineering; Qufu Normal University; 273165 Qufu Shandong China
| | - Jianming Li
- Chemistry and Chemical Engineering; Qufu Normal University; 273165 Qufu Shandong China
| | - Peiying Cui
- Chemistry and Chemical Engineering; Qufu Normal University; 273165 Qufu Shandong China
| | - Yingying Shan
- Chemistry and Chemical Engineering; Qufu Normal University; 273165 Qufu Shandong China
| | - Yutong Zhao
- Chemistry and Chemical Engineering; Qufu Normal University; 273165 Qufu Shandong China
| | - Guanyinsheng Qiu
- College of Biological, Chemical Science and Engineering; Jiaxing University; 314001 Jiaxing Zhejiang China
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21
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Luo WK, Xu CL, Yang L. I2/TBHP mediated multiple C H bonds functionalization of azaarenes with methylarenes to synthesize iodoisoquinolinones via iodination/N-benzylation/amidation sequence. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151328] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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22
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Park H, Bae J, Son S, Jang H. Multifunctionalization of Indoles: Synthesis of 3‐Iodo‐2‐sulfonyl Indoles. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11882] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Hyowon Park
- Department of Energy Systems ResearchAjou University Suwon 16499 South Korea
| | - Junryeol Bae
- Department of Energy Systems ResearchAjou University Suwon 16499 South Korea
| | - Soobin Son
- Department of Energy Systems ResearchAjou University Suwon 16499 South Korea
| | - Hye‐Young Jang
- Department of Energy Systems ResearchAjou University Suwon 16499 South Korea
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23
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Shantharjun B, Rajeswari R, Vani D, Unnava R, Sridhar B, Reddy KR. Metal‐Free, One‐Pot Oxidative Triple Functionalization of Azaarenes with Methyl Arenes Mediated by Molecular Iodine/TBHP: Synthesis of N‐Benzylated Iodo(iso)quinolinones. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900588] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Bangarigalla Shantharjun
- Catalysis and Fine Chemicals DivisionCSIR- Indian Institute of Chemical Technology Tarnaka Hyderabad- 500007 India
- Academy of Scientific and Innovative Research New Delhi- 110025 India
| | - Radhakrishnan Rajeswari
- Catalysis and Fine Chemicals DivisionCSIR- Indian Institute of Chemical Technology Tarnaka Hyderabad- 500007 India
| | - Damera Vani
- Catalysis and Fine Chemicals DivisionCSIR- Indian Institute of Chemical Technology Tarnaka Hyderabad- 500007 India
- Academy of Scientific and Innovative Research New Delhi- 110025 India
| | - Ramanjaneyulu Unnava
- Catalysis and Fine Chemicals DivisionCSIR- Indian Institute of Chemical Technology Tarnaka Hyderabad- 500007 India
| | - Balasubramanian Sridhar
- X-ray Crystallography DivisionCSIR-Indian Institute of Chemical Technology Tarnaka, Hyderabad- 500007 India
| | - Kallu Rajender Reddy
- Catalysis and Fine Chemicals DivisionCSIR- Indian Institute of Chemical Technology Tarnaka Hyderabad- 500007 India
- Academy of Scientific and Innovative Research New Delhi- 110025 India
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24
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Zhu L, Sheng X, Li Y, Lu D, Qiu R, Kambe N. Nickel-Catalyzed Remote C4–H Arylation of 8-Aminoquinolines. Org Lett 2019; 21:6785-6789. [DOI: 10.1021/acs.orglett.9b02403] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Longzhi Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Xinghao Sheng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - You Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Dong Lu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Nobuaki Kambe
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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25
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Liu T, Zhu J, Sun X, Cheng L, Wu L. I
2
/TBHP Mediated Divergent C(sp
2
)‐P Cleavage of Allenylphosphine Oxides: Substituent‐Controlled Regioselectivity. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900334] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Teng Liu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of SciencesNanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Jie Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of SciencesNanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Xue Sun
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of SciencesNanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Liang Cheng
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing 100190 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lei Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of SciencesNanjing Agricultural University Nanjing 210095 People's Republic of China
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing 100190 People's Republic of China
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26
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Ma B, Lu F, Yang H, Gu X, Li Z, Li R, Pei H, Luo D, Zhang H, Lei A. Visible Light Mediated External Oxidant Free Selective C5 Bromination of 8‐Aminoquinoline Amides under Ambient Conditions. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900293] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Bin Ma
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Fangling Lu
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Hongmei Yang
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Xin Gu
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Zhen Li
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Ru Li
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Hongqiao Pei
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Dan Luo
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
| | - Heng Zhang
- College of Chemistry and Molecular Sciences, the Institute forAdvanced Studies (IAS)Wuhan University Wuhan, Hubei 430072 P. R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate SynthesisJiangxiNormal University Nanchang 330022, Jiangxi P. R. China
- College of Chemistry and Molecular Sciences, the Institute forAdvanced Studies (IAS)Wuhan University Wuhan, Hubei 430072 P. R. China
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27
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Kazi I, Guha S, Sekar G. Halogen Bond-Assisted Electron-Catalyzed Atom Economic Iodination of Heteroarenes at Room Temperature. J Org Chem 2019; 84:6642-6654. [DOI: 10.1021/acs.joc.9b00174] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Imran Kazi
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Somraj Guha
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Govindasamy Sekar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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28
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Liang T, He X, Ji D, Wu H, Xu Y, Li Y, Wang Z, Xu Y, Zhu Q. Transition Metal-Free C5 Tosyloxylation of 8-Aminoquinolines with Phenyliodine Bistrifluoroacetate and Substituted 1,2-Disulfonyl Hydrazides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900092] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Tingting Liang
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 211198 China
- Jiangsu Key Laboratory of Drug Design and Optimization; Department of Medicinal Chemistry; China Pharmaceutical University; Nanjing 211198 China
| | - Xin He
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 211198 China
- Changzhou Vocational Institute of Engineering; Changzhou 213164, China
| | - Dezhong Ji
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 211198 China
- Jiangsu Key Laboratory of Drug Design and Optimization; Department of Medicinal Chemistry; China Pharmaceutical University; Nanjing 211198 China
| | - Huanhuan Wu
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 211198 China
| | - Yizhu Xu
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 211198 China
| | - Yuyan Li
- Jiangsu Key Laboratory of Drug Design and Optimization; Department of Medicinal Chemistry; China Pharmaceutical University; Nanjing 211198 China
| | - Zhibin Wang
- Jiangsu Key Laboratory of Drug Design and Optimization; Department of Medicinal Chemistry; China Pharmaceutical University; Nanjing 211198 China
| | - Yungen Xu
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 211198 China
- Jiangsu Key Laboratory of Drug Design and Optimization; Department of Medicinal Chemistry; China Pharmaceutical University; Nanjing 211198 China
| | - Qihua Zhu
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 211198 China
- Jiangsu Key Laboratory of Drug Design and Optimization; Department of Medicinal Chemistry; China Pharmaceutical University; Nanjing 211198 China
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29
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Satkar Y, Yera-Ledesma LF, Mali N, Patil D, Navarro-Santos P, Segura-Quezada LA, Ramírez-Morales PI, Solorio-Alvarado CR. Iodine(III)-Mediated, Controlled Di- or Monoiodination of Phenols. J Org Chem 2019; 84:4149-4164. [PMID: 30888169 DOI: 10.1021/acs.joc.9b00161] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
An oxidative procedure for the electrophilic iodination of phenols was developed by using iodosylbenzene as a nontoxic iodine(III)-based oxidant and ammonium iodide as a cheap iodine atom source. A totally controlled monoiodination was achieved by buffering the reaction medium with K3PO4. This protocol proceeds with short reaction times, at mild temperatures, in an open flask, and generally with high yields. Gram-scale reactions, as well as the scope of this protocol, were explored with electron-rich and electron-poor phenols as well as heterocycles. Quantum chemistry calculations revealed PhII(OH)·NH3 to be the most plausible iodinating active species as a reactive "I+" synthon. In light of the relevance of the iodoarene moiety, we present herein a practical, efficient, and simple procedure with a broad functional group scope that allows access to the iodoarene core unit.
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Affiliation(s)
- Yuvraj Satkar
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - Luisa F Yera-Ledesma
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - Narendra Mali
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - Dipak Patil
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - Pedro Navarro-Santos
- Universidad Michoacana de San Nicolás de Hidalgo , Instituto de Ciencias Químico Biológicas , Av. Universidad S/N , 58000 , Morelia , Michoacán , México
| | - Luis A Segura-Quezada
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - Perla I Ramírez-Morales
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
| | - César R Solorio-Alvarado
- Universidad de Guanajuato , Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química , Noria Alta S/N , 36050 , Guanajuato , Guanajuato , México
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30
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Du S, Pi C, Wan T, Wu Y, Cui X. I
2
‐Mediated Iodization/ [3+2] Cycloaddition/Nucleophilic Addition Tandem Reaction: Synthesis of Polyheterocycles Bearing Furoquinoline and Maleimide. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801433] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sidong Du
- Department of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan UniversitiesZhengzhou University Zhengzhou 450052 People's Republic of China
| | - Chao Pi
- Department of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan UniversitiesZhengzhou University Zhengzhou 450052 People's Republic of China
| | - Ting Wan
- Department of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan UniversitiesZhengzhou University Zhengzhou 450052 People's Republic of China
| | - Yangjie Wu
- Department of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan UniversitiesZhengzhou University Zhengzhou 450052 People's Republic of China
| | - Xiuling Cui
- Department of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan UniversitiesZhengzhou University Zhengzhou 450052 People's Republic of China
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31
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Iron(III)-Catalyzed Highly Regioselective Halogenation of 8-Amidoquinolines in Water. Molecules 2019; 24:molecules24030535. [PMID: 30717184 PMCID: PMC6384643 DOI: 10.3390/molecules24030535] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/28/2019] [Accepted: 01/31/2019] [Indexed: 01/17/2023] Open
Abstract
A simple protocol of iron(III)-catalyzed halogenation of 8-amidoquinolines in water under mild conditions was developed, affording the 5-halogenlated products in good to excellent yields up to 98%. The reaction mechanism most likely involves a single-electron transfer (SET) process.
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32
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Bao P, Wang L, Liu Q, Yang D, Wang H, Zhao X, Yue H, Wei W. Direct coupling of haloquinolines and sulfonyl chlorides leading to sulfonylated quinolines in water. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.12.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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33
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Méndez MV, Simonetti SO, Kaufman TS, Bracca ABJ. A concise Friedländer/Buchwald–Hartwig approach to the total synthesis of quindoline, a bioactive natural indoloquinoline alkaloid, and toward the unnatural 10-methylquindoline. NEW J CHEM 2019. [DOI: 10.1039/c9nj01961h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Friedländer and Buchwald–Hartwig reactions were used to achieve an efficient total synthesis of quindoline and a new synthesis of the unnatural 10-methylquindoline. DFT calculations were employed to explain the outcome of a failed key transformation.
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Affiliation(s)
- María V. Méndez
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario
- Argentina
| | - Sebastian O. Simonetti
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario
- Argentina
| | - Teodoro S. Kaufman
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario
- Argentina
| | - Andrea B. J. Bracca
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario
- Argentina
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34
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Wang X, Zhu MH, Schuman DP, Zhong D, Wang WY, Wu LY, Liu W, Stoltz BM, Liu WB. General and Practical Potassium Methoxide/Disilane-Mediated Dehalogenative Deuteration of (Hetero)Arylhalides. J Am Chem Soc 2018; 140:10970-10974. [PMID: 30075628 DOI: 10.1021/jacs.8b07597] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Herein we describe a general, mild and scalable method for deuterium incorporation by potassium methoxide/hexamethyldisilane-mediated dehalogenation of arylhalides. With CD3CN as a deuterium source, a wide array of heteroarenes prevalent in pharmaceuticals and bearing diverse functional groups are labeled with excellent deuterium incorporation (>60 examples). The ipso-selectivity of this method provides precise access to libraries of deuterated indoles and quinolines. The synthetic utility of our method has been demonstrated by the incorporation of deuterium into complex natural and drug-like compounds.
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Affiliation(s)
- Xin Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , 299 Bayi Road , Wuhan , Hubei 430072 , China
| | - Ming-Hui Zhu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , 299 Bayi Road , Wuhan , Hubei 430072 , China
| | - David P Schuman
- Division of Chemistry and Chemical Engineering , California Institute of Technology , 1200 E California Blvd , Pasadena , California 91125 , United States
| | - Dayou Zhong
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , 299 Bayi Road , Wuhan , Hubei 430072 , China
| | - Wen-Yan Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , 299 Bayi Road , Wuhan , Hubei 430072 , China
| | - Lin-Yang Wu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , 299 Bayi Road , Wuhan , Hubei 430072 , China
| | - Wei Liu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , 299 Bayi Road , Wuhan , Hubei 430072 , China
| | - Brian M Stoltz
- Division of Chemistry and Chemical Engineering , California Institute of Technology , 1200 E California Blvd , Pasadena , California 91125 , United States
| | - Wen-Bo Liu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , 299 Bayi Road , Wuhan , Hubei 430072 , China
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35
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Affiliation(s)
- Bhuttu Khan
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Himangsu Sekhar Dutta
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Dipankar Koley
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
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36
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Wang H, Chen C, Liu W, Zhu Z. Difunctionalization of alkenes with iodine and tert-butyl hydroperoxide (TBHP) at room temperature for the synthesis of 1-( tert-butylperoxy)-2-iodoethanes. Beilstein J Org Chem 2017; 13:2023-2027. [PMID: 29062424 PMCID: PMC5629392 DOI: 10.3762/bjoc.13.200] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 09/08/2017] [Indexed: 12/15/2022] Open
Abstract
We developed a direct vicinal difunctionalization of alkenes with iodine and TBHP at room temperature. This iodination and peroxidation in a one-pot synthesis produces 1-(tert-butylperoxy)-2-iodoethanes, which are inaccessible through conventional synthetic methods. This method generates multiple radical intermediates in situ and has excellent regioselectivity, a broad substrate scope and mild conditions. The iodine and peroxide groups of 1-(tert-butylperoxy)-2-iodoethanes have several potential applications and allow further chemical modifications, enabling the preparation of synthetically valuable molecules.
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Affiliation(s)
- Hao Wang
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, P. R. China. ; Tel: +86- 20 -62789464
| | - Cui Chen
- College of Chemical Engineering, Guangdong University of Petrochemical Technology, 2 Guandu Road, Maoming 525000, P. R. China. ; Tel: +86-668-2923956
| | - Weibing Liu
- College of Chemical Engineering, Guangdong University of Petrochemical Technology, 2 Guandu Road, Maoming 525000, P. R. China. ; Tel: +86-668-2923956
| | - Zhibo Zhu
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, P. R. China. ; Tel: +86- 20 -62789464
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37
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Li G, Zhu B, Ma X, Jia C, Lv X, Wang J, Zhao F, Lv Y, Yang S. Ruthenium-Catalyzed ortho/meta-Selective Dual C–H Bonds Functionalizations of Arenes. Org Lett 2017; 19:5166-5169. [DOI: 10.1021/acs.orglett.7b02439] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gang Li
- College of Chemistry
and Chemical Engineering Anyang Normal University, Anyang 455002, PR China
- Henan Province Key Laboratory of New Optoelectronic
Functional Materials, Anyang Normal University, Anyang 455002, PR China
| | - Biao Zhu
- College of Chemistry
and Chemical Engineering Anyang Normal University, Anyang 455002, PR China
| | - Xingxing Ma
- College of Chemistry
and Chemical Engineering Anyang Normal University, Anyang 455002, PR China
| | - Chunqi Jia
- College of Chemistry
and Chemical Engineering Anyang Normal University, Anyang 455002, PR China
| | - Xulu Lv
- College of Chemistry
and Chemical Engineering Anyang Normal University, Anyang 455002, PR China
| | - Junjie Wang
- College of Chemistry
and Chemical Engineering Anyang Normal University, Anyang 455002, PR China
- Henan Province Key Laboratory of New Optoelectronic
Functional Materials, Anyang Normal University, Anyang 455002, PR China
| | - Feng Zhao
- College of Chemistry
and Chemical Engineering Anyang Normal University, Anyang 455002, PR China
- Henan Province Key Laboratory of New Optoelectronic
Functional Materials, Anyang Normal University, Anyang 455002, PR China
| | - Yunhe Lv
- College of Chemistry
and Chemical Engineering Anyang Normal University, Anyang 455002, PR China
- Henan Province Key Laboratory of New Optoelectronic
Functional Materials, Anyang Normal University, Anyang 455002, PR China
| | - Suling Yang
- College of Chemistry
and Chemical Engineering Anyang Normal University, Anyang 455002, PR China
- Henan Province Key Laboratory of New Optoelectronic
Functional Materials, Anyang Normal University, Anyang 455002, PR China
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38
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Thrimurtulu N, Dey A, Pal K, Nair A, Kumar S, Volla CMR. Metal-Free Remote C-H Bond Acetoxylation of 8-Aminoquinolines on the C5-Position. ChemistrySelect 2017. [DOI: 10.1002/slct.201701388] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Neetipalli Thrimurtulu
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400076 India
| | - Arnab Dey
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400076 India
| | - Kuntal Pal
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400076 India
| | - Akshay Nair
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400076 India
| | - Shreemoyee Kumar
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400076 India
| | - Chandra M. R. Volla
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400076 India
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39
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Abstract
Azines, which are six-membered aromatic compounds containing one or more nitrogen atoms, serve as ubiquitous structural cores of aromatic species with important applications in biological and materials sciences. Among a variety of synthetic approaches toward azines, C-H functionalization represents the most rapid and atom-economical transformation, and it is advantageous for the late-stage functionalization of azine-containing functional molecules. Since azines have several C-H bonds with different reactivities, the development of new reactions that allow for the functionalization of azines in a regioselective fashion has comprised a central issue. This review describes recent advances in the C-H functionalization of azines categorized as follows: (1) SNAr reactions, (2) radical reactions, (3) deprotonation/functionalization, and (4) metal-catalyzed reactions.
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Affiliation(s)
- Kei Murakami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Shuya Yamada
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Takeshi Kaneda
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
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40
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Iodine-Catalyzed C–N Bond Formation: Synthesis of 3-Aminoquinoxalinones under Ambient Conditions. J Org Chem 2017; 82:4784-4792. [DOI: 10.1021/acs.joc.7b00464] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Sun K, Lv Y, Shi Z, Fu F, Zhang C, Zhang Z. Direct access to β-seleno sulfones at room temperature through selenosulfonylation of alkenes. Sci China Chem 2017. [DOI: 10.1007/s11426-016-0412-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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42
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Mani GS, Shaik SP, Tangella Y, Bale S, Godugu C, Kamal A. A facile I2-catalyzed synthesis of imidazo[1,2-a]pyridines via sp3 C–H functionalization of azaarenes and evaluation of anticancer activity. Org Biomol Chem 2017; 15:6780-6791. [DOI: 10.1039/c7ob01384a] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A three component synthetic protocol has been developed for the synthesis of medicinally important imidazo[1,2-a]pyridines via the iodine-catalyzed oxidative amination of benzylic C–H bonds of azaarenes. The synthesized compounds were evaluated for their anti-cancer activity.
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Affiliation(s)
- Geeta Sai Mani
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
- Medicinal Chemistry & Pharmacology
| | - Siddiq Pasha Shaik
- Medicinal Chemistry & Pharmacology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Yellaiah Tangella
- Medicinal Chemistry & Pharmacology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Swarna Bale
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
| | - Chandraiah Godugu
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
| | - Ahmed Kamal
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
- Medicinal Chemistry & Pharmacology
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43
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Wang K, Wang G, Duan G, Xia C. Cobalt(ii)-catalyzed remote C5-selective C–H sulfonylation of quinolines via insertion of sulfur dioxide. RSC Adv 2017. [DOI: 10.1039/c7ra11363c] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A cobalt(ii)-catalyzed reaction for highly selective C5-sulfonylation of quinolines via insertion of sulfur dioxide is developed, leading to diverse sulfonated quinolines in moderate to good yields.
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Affiliation(s)
- Kai Wang
- Pharmacy College
- Taishan Medical University
- Taian 271016
- China
| | - Guodong Wang
- Pharmacy College
- Taishan Medical University
- Taian 271016
- China
| | - Guiyun Duan
- Pharmacy College
- Taishan Medical University
- Taian 271016
- China
| | - Chengcai Xia
- Pharmacy College
- Taishan Medical University
- Taian 271016
- China
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44
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Sun K, Lv Y, Chen Y, Zhou T, Xing Y, Wang X. A novel metal-free method for the selenocyanation of aromatic ketones to afford α-carbonyl selenocyanates. Org Biomol Chem 2017; 15:4464-4467. [DOI: 10.1039/c7ob00958e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A rapid access to α-carbonyl selenocyanates has been developed through the direct selenocyanation of aromatic ketones.
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Affiliation(s)
- Kai Sun
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
- Henan Province Key Laboratory of New Opto-Electronic Functional Materials
| | - Yunhe Lv
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Yao Chen
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Tingting Zhou
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Yanyan Xing
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Xin Wang
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
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45
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Rao NS, Reddy GM, Sridhar B, Sarma MH. Copper-Mediated Remote Highly Site-Selective C-H Bond Bromination and Chlorination of Quinolines at the C5 Position that is Geometrically Difficult to Access. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601151] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Naidu Sambasiva Rao
- Inorganic & Physical Chemistry Division; CSIR - Indian Institute of Chemical Technology; Uppal Road Hyderabad India
| | - Ganapam Manohar Reddy
- Inorganic & Physical Chemistry Division; CSIR - Indian Institute of Chemical Technology; Uppal Road Hyderabad India
| | - B. Sridhar
- Inorganic & Physical Chemistry Division; CSIR - Indian Institute of Chemical Technology; Uppal Road Hyderabad India
| | - Maheswaran Harihara Sarma
- Inorganic & Physical Chemistry Division; CSIR - Indian Institute of Chemical Technology; Uppal Road Hyderabad India
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46
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Rasool F, Bhat AH, Hussain N, Mukherjee D. Reaction of Glycals with Organic Peroxides: Synthesis of 2-iodo, 2-Deoxy and 2,3-Unsaturated Glycosides. ChemistrySelect 2016. [DOI: 10.1002/slct.201601849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Faheem Rasool
- Natural Product Chemistry- Miocrobes; Indian Institute of Integrative Medicine (CSIR); Jammu- 180001
- Academy of Scientific and Innovative Research; New Delhi India
| | - Aabid H. Bhat
- Natural Product Chemistry- Miocrobes; Indian Institute of Integrative Medicine (CSIR); Jammu- 180001
| | - Nazar Hussain
- Natural Product Chemistry- Miocrobes; Indian Institute of Integrative Medicine (CSIR); Jammu- 180001
- Academy of Scientific and Innovative Research; New Delhi India
| | - Debaraj Mukherjee
- Natural Product Chemistry- Miocrobes; Indian Institute of Integrative Medicine (CSIR); Jammu- 180001
- Academy of Scientific and Innovative Research; New Delhi India
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47
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Metal-free tetra-n-butylammonium bromide-mediated aerobic oxidative synthesis of β-ketosulfones from styrenes. Sci China Chem 2016. [DOI: 10.1007/s11426-016-0284-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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48
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Sahoo H, Mandal A, Selvakumar J, Baidya M. Remote C-H Selenylation of 8-Amidoquinolines via Copper-Catalyzed Radical Cross-Coupling. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600772] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Harekrishna Sahoo
- Department of Chemistry; Indian Institute of Technology Madras; 600036 Chennai Tamil Nadu India
| | - Anup Mandal
- Department of Chemistry; Indian Institute of Technology Madras; 600036 Chennai Tamil Nadu India
| | - Jayaraman Selvakumar
- Department of Chemistry; Indian Institute of Technology Madras; 600036 Chennai Tamil Nadu India
| | - Mahiuddin Baidya
- Department of Chemistry; Indian Institute of Technology Madras; 600036 Chennai Tamil Nadu India
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49
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Ying B, Xu J, Zhu X, Shen C, Zhang P. Catalyst-Controlled Selectivity in the Synthesis of C2- and C3-Sulfonate Esters from QuinolineN-Oxides and Aryl Sulfonyl Chlorides. ChemCatChem 2016. [DOI: 10.1002/cctc.201600555] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Beibei Ying
- College of Materials, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 China
| | - Jun Xu
- College of Materials, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 China
| | - Xiaolei Zhu
- College of Materials, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 China
| | - Chao Shen
- College of Biology and Environmental Engineering; Zhejiang Shuren University; Hangzhou China
| | - Pengfei Zhang
- College of Materials, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 China
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50
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Kundu P, Mondal A, Chowdhury C. A Palladium-Catalyzed Method for the Synthesis of 2-(α-Styryl)-2,3-dihydroquinazolin-4-ones and 3-(α-Styryl)-3,4-dihydro-1,2,4-benzothiadiazine-1,1-dioxide: Access to 2-(α-Styryl)quinazolin-4(3H)-ones and 3-(α-Styryl)-1,2,4-benzothiadiazine-1,1-dioxides. J Org Chem 2016; 81:6596-608. [DOI: 10.1021/acs.joc.6b01242] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Priyanka Kundu
- Organic & Medicinal Chemisty Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata-700032, India
| | - Amrita Mondal
- Organic & Medicinal Chemisty Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata-700032, India
| | - Chinmay Chowdhury
- Organic & Medicinal Chemisty Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata-700032, India
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