1
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Bhanja R, Kanti Bera S, Mal P. Sustainable Synthesis through Catalyst-Free Photoinduced Cascaded Bond Formation. Chem Asian J 2024:e202400279. [PMID: 38717944 DOI: 10.1002/asia.202400279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/30/2024] [Indexed: 06/12/2024]
Abstract
The beginning of photochemical reactions revolutionized synthetic chemistry through sustainable practices. This review explores cutting-edge developments in leveraging light-induced processes for generating cascaded C-C and C-hetero bonds without catalysts. Significantly, catalyst-free photoinduced methodologies have garnered considerable attention, especially in the creation of varied heterocyclic frameworks for drug design and the synthesis of natural products. The article delves into underlying mechanisms, addresses limitations, and evaluates various methodologies, emphasizing the potential of photocatalyst and transition metal-free photochemical reactions to enhance sustainability. Divided into two sections, it covers recent strides in C-C and C-heteroatom and multiple C-heteroatom bond formation reactions.
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Affiliation(s)
- Rosalin Bhanja
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, 752050, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha, India
| | - Shyamal Kanti Bera
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, 752050, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha, India
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, 752050, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha, India
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2
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Zhang P, Li W, Yang S, Qu W, Wang L, Lin J, Gao X. Construction of Phosphorothiolated 2-Pyrrolidinones via Photoredox/Copper-Catalyzed Cascade Radical Cyclization/Phosphorothiolation. J Org Chem 2024; 89:4947-4957. [PMID: 38498700 DOI: 10.1021/acs.joc.4c00159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
A photoredox/copper-catalyzed cascade radical cyclization/phosphorothiolation reaction of N-allylbromoacetamides and P(O)SH compounds has been established. A broad range of novel nonfluorine- or difluoro-substituted 2-pyrrolidinones bearing the C(sp3)-SP(O)(OR)2 moiety can be conveniently constructed in moderate to good yields under mild conditions. Importantly, most of the tested phosphorothiolated 2-pyrrolidinones showed potent inhibitory effects toward both AChE and BChE.
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Affiliation(s)
- Pengbo Zhang
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, China
| | - Wenwu Li
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, China
| | - Shuai Yang
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, China
| | - Weilong Qu
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, China
| | - Longyu Wang
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, China
| | - Jinming Lin
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, China
| | - Xia Gao
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, China
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3
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Zhu F, Li Z, Wu XF. Nickel-Catalyzed Aminofluoroalkylative Cyclization of Styrenes with Ethyl Fluoroacetate and Anilines toward Fluoro-γ-Lactams. Org Lett 2023; 25:8535-8539. [PMID: 37985463 DOI: 10.1021/acs.orglett.3c03589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
A novel method for the nickel-catalyzed multicomponent aminofluoroalkylation/cyclization of styrenes with ethyl fluoroacetate and anilines has been developed. This protocol provides general and efficient access to a diverse range of fluoro-γ-lactams from simple and readily available starting materials. Control experiments prove the involvement of radical intermediates and excluded the presence of 2-fluoro-N-phenylacetamide.
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Affiliation(s)
- Fengxiang Zhu
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Ziyan Li
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Xiao-Feng Wu
- Institution Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- Leibniz-Institut für Katalyse e.V., Rostock 18059, Germany
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4
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Liang JY, Su YW, Zou YQ. Photochemical reductive deamination of alpha-amino aryl alkyl ketones. Chem Commun (Camb) 2023. [PMID: 37997158 DOI: 10.1039/d3cc04837c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
Photochemical reductive deamination of alpha-amino aryl alkyl ketones under photosensitizer-free conditions is presented. This protocol features high efficiency and selectivity. A plausible reaction pathway is proposed based on ultraviolet-visible absorption investigation, control experiments and deuterium-labelling studies. Mechanistic study reveals that the alpha-hydrogen atom of the ketone product originated from water.
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Affiliation(s)
- Ji-Yuan Liang
- Department of Otolaryngology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei 430071, China.
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University, Wuhan, Hubei 430071, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China
| | - Yi-Wen Su
- Department of Otolaryngology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei 430071, China.
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University, Wuhan, Hubei 430071, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China
| | - You-Quan Zou
- Department of Otolaryngology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei 430071, China.
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University, Wuhan, Hubei 430071, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China
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5
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Zhang Y, Jiang B, Liu P, Liu X. Et 2Zn-Mediated Radical (3 + 2) Cycloaddition of Vinyl Azides with Ethyl Iododifluoroacetate to Access 3,3-Difluoro-γ-lactams. J Org Chem 2023; 88:14634-14639. [PMID: 37788008 DOI: 10.1021/acs.joc.3c01620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
A diethylzinc-mediated radical (3 + 2) cycloaddition of vinyl azides with ethyl iododifluoroacetate is presented. The developed reaction features good functional group tolerance, broad substrate scope, and operational simplicity, enabling efficient assembly of a wide range of 3,3-difluoro-γ-lactam derivatives bearing an O-substituted quaternary carbon center in moderate to good yields. The utility of the method is showcased by a scaled-up reaction, conversion of the product, and late-stage structural modifications of a variety of pharmaceutical compounds.
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Affiliation(s)
- Yifei Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Bin Jiang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Peijun Liu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, P. R. China
| | - Xiaozu Liu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, P. R. China
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6
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Tan P, Lu L, Wang S, Wang J, Chen J, Zhang Y, Xie L, Yang S, Chen J, Zhang Z. Photo- or Electrochemical Cyclization of Dienes with Diselenides to Access Seleno-Benzo[ b]azepines. J Org Chem 2023. [PMID: 37220067 DOI: 10.1021/acs.joc.3c00475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A cascade selenylation/cyclization of dienes with diselenides has been realized under visible-light irradiation or electrolysis conditions. Employing O2 or electricity as a "green" oxidant, this protocol provides a green and efficient method for an array of biologically important seleno-benzo[b]azepine derivatives in moderate to good yields. The direct sunlight irradiation and gram-scale reaction render the approach practical and attractive.
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Affiliation(s)
- Pengpeng Tan
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Liwang Lu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Shilong Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Junxin Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Jiayang Chen
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Yijia Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Lei Xie
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252000, P. R. China
| | - Shubin Yang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Jinchun Chen
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Zhen Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
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7
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Synthesis and Application Dichalcogenides as Radical Reagents with Photochemical Technology. Molecules 2023; 28:molecules28041998. [PMID: 36838986 PMCID: PMC9963440 DOI: 10.3390/molecules28041998] [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: 02/01/2023] [Revised: 02/11/2023] [Accepted: 02/13/2023] [Indexed: 02/23/2023] Open
Abstract
Dichalcogenides (disulfides and diselenides), as reactants for organic transformations, are important and widely used because of their potential to react with nucleophiles, electrophilic reagents, and radical precursors. In recent years, in combination with photochemical technology, the application of dichalcogenides as stable radical reagents has opened up a new route to the synthesis of various sulfur- and selenium-containing compounds. In this paper, synthetic strategies for disulfides and diselenides and their applications with photochemical technology are reviewed: (i) Cyclization of dichalcogenides with alkenes and alkynes; (ii) direct selenylation/sulfuration of C-H/C-C/C-N bonds; (iii) visible-light-enabled seleno- and sulfur-bifunctionalization of alkenes/alkynes; and (iv) Direct construction of the C(sp)-S bond. In addition, the scopes, limitations, and mechanisms of some reactions are also described.
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8
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Ye H, Zhou L, Chen Y, Tong H. Visible light driven multicomponent synthesis of difluoroamidosulfonyl quinoline derivatives. Org Biomol Chem 2023; 21:846-850. [PMID: 36602158 DOI: 10.1039/d2ob02069f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A visible-light-induced photocatalyst-free three-component radical tandem cyclization of N-propargylamine and N-allylbromodifluoroacetamides with the insertion of sulfur dioxide has been developed. Diverse difluoroamidosulfonylated quinolines are obtained in moderate to good yields. This protocol features broad functional group tolerance and high regioselectivity. Moreover, mechanistic studies reveal the involvement of the radical pathway and the formation of an electron donor-acceptor (EDA) complex in this reaction.
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Affiliation(s)
- Haiwei Ye
- Chemical Pharmaceutical Research Institute, Taizhou Vocational & Technical College, Taizhou, 318000, P.R. China.
| | - Liping Zhou
- Chemical Pharmaceutical Research Institute, Taizhou Vocational & Technical College, Taizhou, 318000, P.R. China.
| | - Yunhua Chen
- Chemical Pharmaceutical Research Institute, Taizhou Vocational & Technical College, Taizhou, 318000, P.R. China.
| | - Huaguang Tong
- Taizhou Daozhi Tech Co., Ltd, Taizhou, 318000, P.R. China
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9
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Sun B, Zhuang X, Yin J, Zhang K, Zhao H, Jin C. Photoredox-Catalyzed Tandem Radical Cyclization/Hydroxylation for the Synthesis of 4-Hydroxyalkyl-3,3-difluoro-γ-lactams. J Org Chem 2022; 87:14177-14185. [PMID: 36173277 DOI: 10.1021/acs.joc.2c01710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The photoredox-catalyzed radical difluoroalkylation/cyclization/hydroxylation cascade reaction of various 2-bromo-2,2-difluoro-N-arylacetamides containing unactivated alkene moieties has been developed, providing green and efficient access to various 4-hydroxyalkyl-3,3-difluoro-γ-lactams. Control experiments confirmed a radical process, and inexpensive air acted as the sole hydroxy resource. In addition, the highlights of this protocol include good tolerance for a variety functional groups, lower photocatalyst loading, and ease of operation.
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Affiliation(s)
- Bin Sun
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Xiaohui Zhuang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Jieli Yin
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Kesheng Zhang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Haiyun Zhao
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Can Jin
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China.,College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
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10
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Zhang YW, Jia YL, Wang D, Chen J, Liu FL, Cheng LQ, Yu X. NaIO4-Mediated Oxidative Cleavage of C–N Bond of Aza-Bridged Pyridoazepines to γLactams. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2022. [DOI: 10.1134/s107042802210013x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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11
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Ma T, Bian M, Lin X, Yang Z, Yang X, Duan J, Zhu N, Liu C, Fang Z, Guo K. Visible light‐promoted intramolecular annulation of 2‐alkynylbiphenyls to synthesize 9‐sulfenylphenanthrenes under metal‐free and additives‐free conditions. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tao Ma
- Nanjing Tech University College of Biotechnology and Pharmaceutical Engineering CHINA
| | - Mixue Bian
- Nanjing Tech University College of Biotechnology and Pharmaceutical Engineering CHINA
| | - Xinxin Lin
- Nanjing Tech University College of Biotechnology and Pharmaceutical Engineering CHINA
| | - Zhao Yang
- China Pharmaceutical University College of Engineering CHINA
| | - Xiaobing Yang
- Industrial Technology Research Institute Biology and Medicine Department CHINA
| | - Jindian Duan
- Nanjing Tech University College of Biotechnology and Pharmaceutical Engineering CHINA
| | - Ning Zhu
- Nanjing Tech University College of Biotechnology and Pharmaceutical Engineering CHINA
| | - Chengkou Liu
- Nanjing Tech University College of Biotechnology and Pharmaceutical Engineering CHINA
| | - Zheng Fang
- Nanjing Tech University College of Biotechnology and Pharmaceutical Engineering CHINA
| | - Kai Guo
- Nanjing Tech University State Key Laboratory of Materials-Oriented Chemical Engineering 30 Puzhu Road South 211800 Nanjing CHINA
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12
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Gao J, Ye ZP, Liu YF, He XC, Guan JP, Liu F, Chen K, Xiang HY, Chen XQ, Yang H. Visible-Light-Promoted Cross-Coupling of O-Aryl Oximes and Nitrostyrenes to Access Cyanoalkylated Alkenes. Org Lett 2022; 24:4640-4644. [PMID: 35729079 DOI: 10.1021/acs.orglett.2c01750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A photoinduced, photocatalyst-free cyanoalkylation of nitrostyenes was explored, affording a series of cyanoalkylated alkenes in moderate to good yields. Mechanistic studies reveal that an electron donor-acceptor complex formed between O-aryl oximes and DIPEA is presumably involved in this process. The excellent functional group compatibility of this newly designed synthetic protocol allows for cyanoalkylation of structurally varied substrates, which offers an eco-friendly pathway for the assembly of cyanoalkylated alkenes.
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Affiliation(s)
- Jie Gao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Zhi-Peng Ye
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Yu-Fei Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Xian-Chen He
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Jian-Ping Guan
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Fang Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan P.R. China
| | - Xiao-Qing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
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13
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Zheng X, Shen Q, Yin C, Li L, Zhong T, Yu C. Photoinduced Three‐Component Difluoroamidosulfonylation/Bicyclization: Regioselectivity Synthesis of Seven‐Membered Dibenzosultams. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xiangyun Zheng
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Qitao Shen
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Chuanliu Yin
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Lianghao Li
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Tianshuo Zhong
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Chuanming Yu
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
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14
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Zhang L, He J, Zhang P, Zhu D, Zheng K, Shen C. Visible-light-induced C–H sulfenylation of quinoxalin-2(1H)-ones with disulfides by sustainable cerium catalysis. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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15
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"Green Is the Color": An Update on Ecofriendly Aspects of Organoselenium Chemistry. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27051597. [PMID: 35268698 PMCID: PMC8911681 DOI: 10.3390/molecules27051597] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 02/23/2022] [Accepted: 02/24/2022] [Indexed: 02/07/2023]
Abstract
Organoselenium compounds have been successfully applied in biological, medicinal and material sciences, as well as a powerful tool for modern organic synthesis, attracting the attention of the scientific community. This great success is mainly due to the breaking of paradigm demonstrated by innumerous works, that the selenium compounds were toxic and would have a potential impact on the environment. In this update review, we highlight the relevance of these compounds in several fields of research as well as the possibility to synthesize them through more environmentally sustainable methodologies, involving catalytic processes, flow chemistry, electrosynthesis, as well as by the use of alternative energy sources, including mechanochemical, photochemistry, sonochemical and microwave irradiation.
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16
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Zhang Y, Chen Y, Sun J, Wang J, Zhou M. Visible‐light‐promoted Radical Cyclization/Arylation Cascade for the Construction of
α,
α
‐Difluoro‐
γ
‐Lactam‐Fused
Quinoxalin‐2(
1
H
)‐Ones. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100787] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yun‐Chao Zhang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Yang Chen
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Jing Sun
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Jing‐Yun Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Ming‐Dong Zhou
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
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17
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Affiliation(s)
- Cai Zhang
- Department of Safety Supervision and Management Chongqing Vocational Institute of Safety Technology Chongqing People's Republic of China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang People's Republic of China
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18
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Ye ZP, Liu F, Duan XY, Gao J, Guan JP, Xiao JA, Xiang HY, Chen K, Yang H. Visible Light-Promoted Radical Relay Cyclization/C-C Bond Formation of N-Allylbromodifluoroacetamides with Quinoxalin-2(1 H)-ones. J Org Chem 2021; 86:17173-17183. [PMID: 34743511 DOI: 10.1021/acs.joc.1c02285] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A visible light-promoted radical relay of N-allylbromodifluoroacetamide with quinoxalin-2(1H)-ones was developed in which 5-exo-trig cyclization and C-C bond formation were involved. This protocol was performed under mild conditions to facilely offer a variety of hybrid molecules bearing both quinoxalin-2(1H)-one and 3,3-difluoro-γ-lactam motifs. These prepared novel skeletons would expand the accessible chemical space for structurally complex heterocycles with potential biological activities.
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Affiliation(s)
- Zhi-Peng Ye
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Fang Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Xin-Yu Duan
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jie Gao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jian-Ping Guan
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jun-An Xiao
- College of Chemistry and Materials Science, Nanning Normal University, Nanning 530001, P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
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19
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Hung VT, Tran CC, Yamamoto Y, Kodama S, Nomoto A, Ogawa A. Clarification on the Reactivity of Diaryl Diselenides toward Hexacyclohexyldilead under Light. Molecules 2021; 26:6265. [PMID: 34684846 PMCID: PMC8541589 DOI: 10.3390/molecules26206265] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/08/2021] [Accepted: 10/12/2021] [Indexed: 02/06/2023] Open
Abstract
In this study, the reactivity of organochalcogen compounds toward a representative alkyl-lead bond compound under light was investigated in detail. Under light irradiation, the Cy-Pb bond of Cy6Pb2 (Cy = cyclohexyl) undergoes homolytic cleavage to generate a cyclohexyl radical (Cy•). This radical can be successfully captured by diphenyl diselenide, which exhibits excellent carbon-radical-capturing ability. In the case of (PhS)2 and (PhTe)2, the yields of the corresponding cyclohexyl sulfides and tellurides were lower than that of (PhSe)2. This probably occurred due to the low carbon-radical-capturing ability of (PhS)2 and the high photosensitivity of the cyclohexyl-tellurium bond.
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Affiliation(s)
| | | | | | - Shintaro Kodama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka 599-8531, Japan; (V.T.H.); (C.C.T.); (Y.Y.); (A.N.)
| | | | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka 599-8531, Japan; (V.T.H.); (C.C.T.); (Y.Y.); (A.N.)
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20
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Goswami M, Dutta A, Paul P, Nongkhlaw R. Recent Developments on Catalyst‐Free, Visible‐Light‐Triggered Synthesis of Heterocyclic Scaffolds and Their Mechanistic Study. ChemistrySelect 2021. [DOI: 10.1002/slct.202102696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Munmee Goswami
- Centre for Advanced Studies in Chemistry Department of Chemistry North-Eastern Hill University Shillong 793022 INDIA
| | - Arup Dutta
- Centre for Advanced Studies in Chemistry Department of Chemistry North-Eastern Hill University Shillong 793022 INDIA
| | - Pooja Paul
- Centre for Advanced Studies in Chemistry Department of Chemistry North-Eastern Hill University Shillong 793022 INDIA
| | - Rishanlang Nongkhlaw
- Centre for Advanced Studies in Chemistry Department of Chemistry North-Eastern Hill University Shillong 793022 INDIA
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21
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Shi J, Gao XW, Tong QX, Zhong JJ. Light-Promoted and Tertiary-Amine-Assisted Hydroxysulfenylation of Alkenes: Selective and Direct One-Pot Synthesis of β-Hydroxysulfides. J Org Chem 2021; 86:12922-12931. [PMID: 34464115 DOI: 10.1021/acs.joc.1c01610] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A light-promoted and tertiary-amine-assisted strategy for efficient hydroxysulfenylation of both electron-rich and electron-deficient alkenes with thiophenols to selectively and directly access β-hydroxysulfides in one pot is described herein. In contrast to the previously reported thiol-oxygen co-oxidation reactions, this simple and sustainable approach features mild reaction conditions, high efficiency, and excellent functional group tolerance.
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Affiliation(s)
- Jing Shi
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, and Chemistry and Chemical Engineering Laboratory of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Xue-Wang Gao
- Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qing-Xiao Tong
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, and Chemistry and Chemical Engineering Laboratory of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Jian-Ji Zhong
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, and Chemistry and Chemical Engineering Laboratory of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
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22
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Tang K, Chen Y, Guan J, Wang Z, Chen K, Xiang H, Yang H. Visible-light-promoted olefinic trifluoromethylation of enamides with CF 3SO 2Na. Org Biomol Chem 2021; 19:7475-7479. [PMID: 34612366 DOI: 10.1039/d1ob01410b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A visible-light-promoted olefinic C-H trifluoromethylation of enamides was developed by employing cheap and stable Langlois' reagent as the CF3 source. A series of β-CF3 enamides were obtained in moderate to good yields with high E-isomer selectivity under mild conditions. Preliminary mechanistic studies suggest that molecular oxygen acts as the terminal oxidant for this net oxidative process, and the E isomer selectivity could be well explained by a base-assisted deprotonation of the cation intermediate.
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Affiliation(s)
- Kai Tang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
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23
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Lapcinska S, Dimitrijevs P, Lapcinskis L, Arsenyan P. Visible Light‐Mediated Functionalization of Selenocystine‐Containing Peptides. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100373] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sindija Lapcinska
- Latvian Institute of Organic Synthesis Aizkraukles 21 LV-1006 Riga Latvia
| | - Pavels Dimitrijevs
- Latvian Institute of Organic Synthesis Aizkraukles 21 LV-1006 Riga Latvia
| | - Linards Lapcinskis
- Research Laboratory of Functional Materials Technologies Faculty of Materials Science and Applied Chemistry Riga Technical University P. Valdena 3/7 LV-1048 Riga Latvia
| | - Pavel Arsenyan
- Latvian Institute of Organic Synthesis Aizkraukles 21 LV-1006 Riga Latvia
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24
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Mkrtchyan S, Jakubczyk M, Lanka S, Pittelkow M, Iaroshenko VO. Cu-Catalyzed Arylation of Bromo-Difluoro-Acetamides by Aryl Boronic Acids, Aryl Trialkoxysilanes and Dimethyl-Aryl-Sulfonium Salts: New Entries to Aromatic Amides. Molecules 2021; 26:2957. [PMID: 34065691 PMCID: PMC8156957 DOI: 10.3390/molecules26102957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 11/28/2022] Open
Abstract
We describe a mechanism-guided discovery of a synthetic methodology that enables the preparation of aromatic amides from 2-bromo-2,2-difluoroacetamides utilizing a copper-catalyzed direct arylation. Readily available and structurally simple aryl precursors such as aryl boronic acids, aryl trialkoxysilanes and dimethyl-aryl-sulfonium salts were used as the source for the aryl substituents. The scope of the reactions was tested, and the reactions were insensitive to the electronic nature of the aryl groups, as both electron-rich and electron-deficient aryls were successfully introduced. A wide range of 2-bromo-2,2-difluoroacetamides as either aliphatic or aromatic secondary or tertiary amides were also reactive under the developed conditions. The described synthetic protocols displayed excellent efficiency and were successfully utilized for the expeditious preparation of diverse aromatic amides in good-to-excellent yields. The reactions were scaled up to gram quantities.
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Affiliation(s)
- Satenik Mkrtchyan
- Laboratory of Homogeneous Catalysis and Molecular Design at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łodź, Poland; (M.J.); (S.L.)
| | - Michał Jakubczyk
- Laboratory of Homogeneous Catalysis and Molecular Design at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łodź, Poland; (M.J.); (S.L.)
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland
| | - Suneel Lanka
- Laboratory of Homogeneous Catalysis and Molecular Design at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łodź, Poland; (M.J.); (S.L.)
- Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Michael Pittelkow
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark;
| | - Viktor O. Iaroshenko
- Laboratory of Homogeneous Catalysis and Molecular Design at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łodź, Poland; (M.J.); (S.L.)
- Dipartimento di Chimica e Biologia “A. Zambelli” Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), Italy
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, 00014 Helsinki, Finland
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25
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Rafique J, Rampon DS, Azeredo JB, Coelho FL, Schneider PH, Braga AL. Light-mediated Seleno-Functionalization of Organic Molecules: Recent Advances. CHEM REC 2021; 21:2739-2761. [PMID: 33656248 DOI: 10.1002/tcr.202100006] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/12/2021] [Accepted: 02/18/2021] [Indexed: 01/21/2023]
Abstract
Organoselenium compounds constitute an important class of substances with applications in the biological, medicinal and material sciences as well as in modern organic synthesis, attracting considerable attention from the scientific community. Therefore, the construction of the C-Se bond via facile, efficient and sustainable strategies to access complex scaffolds from simple substrates are an appealing and hot topic. Visible light can be regarded as an alternative source of energy and is associated with environmentally-friendly processes. Recently, the use of visible-light mediated seleno-functionalization has emerged as an ideal and powerful route to obtain high-value selenylated products, with diminished cost and waste. This approach, involving photo-excited substrates/catalyst and single-electron transfer (SET) between substrates in the presence of visible light has been successfully used in the versatile and direct insertion of organoselenium moieties in activated and unactivated C(sp3 )-H, C(sp2 )-H, C(sp)-H bonds as well as C-heteroatom bonds. In most cases, ease of operation and accessibility of the light source (LEDs or commercial CFL bulbs) makes this approach more attractive and sustainable than the traditional strategies.
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Affiliation(s)
- Jamal Rafique
- Instituto de Química (INQUI), Universidade Federal de Mato Grosso do Sul -UFMS, Campo Grande, 79074-460, MS -, Brazil
| | - Daniel S Rampon
- Departamento de Química, Universidade Federal do Paraná (UFPR), Curitiba, 81531-990, PR Brazil
| | - Juliano B Azeredo
- Departamento de Farmácia, Universidade Federal do Pampa, Uruguaiana, 97500-970, RS -, Brazil
| | - Felipe L Coelho
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, 91501-970, RS, Brazil
| | - Paulo H Schneider
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, 91501-970, RS, Brazil
| | - Antonio L Braga
- Departamento de Química, Universidade Federal de Santa Catarina-UFSC, Florianópolis, 88040-900, SC, Brazil
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26
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Wang X, Zhang Y, Sun K, Meng J, Zhang B. Study on the Application of Photoelectric Technology in the Synthesis of Selenium-Containing Heterocycles. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202109046] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Construction of Boronated
γ
‐Lactams via Palladium‐Catalyzed Intramolecular Boryldifluoroalkylation of Alkenes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000786] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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28
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Wang X, Lei J, Li G, Meng J, Li C, Li J, Sun K. Synthetic methods for compounds containing fluoro-lactam units. Org Biomol Chem 2020; 18:9762-9774. [DOI: 10.1039/d0ob02168g] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This review highlights recent progress in the construction of fluorinated lactams, including fluoro-β-lactams, fluoro-γ-lactams, and fluoro-δ-lactams, with an emphasis on the scopes, limitations and mechanisms of these different reactions.
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Affiliation(s)
- Xin Wang
- School of Chemistry and Chemical Engineering
- YanTai University
- Yantai
- P. R. China
| | - Jia Lei
- School of Pharmacy
- Harbin University of Commerce
- Harbin
- P. R. China
| | - Guofeng Li
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
- P. R. China
| | - Jianping Meng
- School of Pharmacy
- Harbin University of Commerce
- Harbin
- P. R. China
| | - Chen Li
- School of Pharmacy
- Harbin University of Commerce
- Harbin
- P. R. China
| | - Jiazhu Li
- School of Chemistry and Chemical Engineering
- YanTai University
- Yantai
- P. R. China
| | - Kai Sun
- School of Chemistry and Chemical Engineering
- YanTai University
- Yantai
- P. R. China
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