1
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Tagami K, Nakayama M, Kanbara T, Cahard D, Yajima T. 10-Phenylphenothiazine-Organophotocatalyzed Bromo-Perfluoroalkylation of Unactivated Olefins. J Org Chem 2024; 89:7084-7094. [PMID: 38663869 DOI: 10.1021/acs.joc.4c00470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
In this study, we have developed a smooth metal-free visible-light-induced bromo-perfluoroalkylation of unactivated olefins with the aid of 10-phenylphenothiazine (PTH) as an organic photoredox catalyst. The reaction is 100% atom-economic redox-neutral and proceeds with stoichiometric amounts of olefin and perfluoroalkyl bromide. To show the potential of these unexplored motifs, we carried out various postfunctionalizations taking advantage of the bromine atom, including gram-scale experiments.
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Affiliation(s)
- Koto Tagami
- Department of Chemistry, Ochanomizu University, Tokyo 112-8610, Japan
- CNRS, UMR 6014 COBRA, Univ Rouen Normandie, INSA Rouen, Normandie Univ, INC3M FR 3038, F-76000 Rouen, France
| | - Moeko Nakayama
- Department of Chemistry, Ochanomizu University, Tokyo 112-8610, Japan
| | - Tadashi Kanbara
- Department of Chemistry, Ochanomizu University, Tokyo 112-8610, Japan
| | - Dominique Cahard
- CNRS, UMR 6014 COBRA, Univ Rouen Normandie, INSA Rouen, Normandie Univ, INC3M FR 3038, F-76000 Rouen, France
| | - Tomoko Yajima
- Department of Chemistry, Ochanomizu University, Tokyo 112-8610, Japan
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2
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Zhang FP, Wang RH, Li JF, Chen H, Hari Babu M, Ye M. Intermolecular Carbophosphination of Alkynes with Phosphole Oxides via Ni-Al Bimetal-Catalyzed C-P Bond Activation. Angew Chem Int Ed Engl 2023; 62:e202314701. [PMID: 37846814 DOI: 10.1002/anie.202314701] [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: 09/30/2023] [Revised: 10/15/2023] [Accepted: 10/17/2023] [Indexed: 10/18/2023]
Abstract
Intermolecular carbophosphination reaction of alkynes or alkenes with unreactive C-P bonds remains an elusive challenge. Herein, we used a Ni-Al bimetallic catalyst to realize an intermolecular carbophosphination reaction of alkynes with 5-membered phosphole oxides, providing a series of 7-membered phosphepines in up to 94 % yield.
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Affiliation(s)
- Feng-Ping Zhang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Rong-Hua Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Jiang-Fei Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Hao Chen
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Madala Hari Babu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Mengchun Ye
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
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3
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Wei HZ, Shi M, Wei Y. Visible-light-induced reactions of methylenecyclopropanes (MCPs). Chem Commun (Camb) 2023; 59:2726-2738. [PMID: 36752186 DOI: 10.1039/d2cc06957a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Diverse, visible-light-induced transformations of methylenecyclopropanes (MCPs) have been reported in recent years, attracting significant attention from synthetic chemists. As readily accessible strained molecules, MCPs have sufficient reactivity to selectively generate different target products, through reactions with various radical species upon visible-light irradiation under regulated reaction conditions. These transformations can be classified into three subcategories of reaction pathway, forming ring-opened products, cyclopropane derivatives, and alkynes. These products include pharmaceutical intermediates and polycyclic/heterocyclic compounds that are challenging to obtain using traditional methods. This review summarizes the recent advancements in this field.
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Affiliation(s)
- Hao-Zhao Wei
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China. .,Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China.
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4
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Dong DQ, Yang SH, Wu P, Wang JZ, Min LH, Yang H, Zhou MY, Wei ZH, Ding CZ, Wang YL, Gao JH, Wang SJ, Wang ZL. Copper-Catalyzed Difluoroalkylation Reaction. Molecules 2022; 27:molecules27238461. [PMID: 36500553 PMCID: PMC9740754 DOI: 10.3390/molecules27238461] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 12/07/2022] Open
Abstract
This review describes recent advances in copper-catalyzed difluoroalkylation reactions. The RCF2 radical is generally proposed in the mechanism of these reactions. At present, various types of copper-catalyzed difluoroalkylation reactions have been realized. According to their characteristics, we classify these difluoroalkylation reactions into three types.
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Affiliation(s)
- Dao-Qing Dong
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Shao-Hui Yang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Pei Wu
- Shandong Academy of Pesticide Sciences, Beiyuan Street, Jinan 250033, China
- Correspondence: (P.W.); (Z.-L.W.)
| | - Jin-Zhi Wang
- Tancheng County Agricultural Technology Popularization Center, Linyi 276100, China
| | - Ling-Hao Min
- Qingdao Zhongda Agritech Co., Ltd., Qingdao 266109, China
| | - Hao Yang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Meng-Yu Zhou
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Ze-Hui Wei
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Cai-Zhen Ding
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Yan-Li Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Jia-Hui Gao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Shu-Jie Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Zu-Li Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
- National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Correspondence: (P.W.); (Z.-L.W.)
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5
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Zou S, Luo X, Chen C, Xi C. Photoredox-catalyzed fluorodifluoroacetylation of alkenes with FSO 2CF 2CO 2Me and Et 3N·3HF. Org Biomol Chem 2022; 20:3726-3730. [PMID: 35466989 DOI: 10.1039/d2ob00488g] [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
Photoredox-catalyzed three-component fluorodifluoroacetylation of aromatic alkenes is reported, which features a wide substrate scope and functional group tolerance. An advantage of the reaction is the use of a nucleophilic fluoride source and a general difluoroacetylation reagent for the fluorodifluoroacetylation of alkenes.
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Affiliation(s)
- Song Zou
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China.
| | - Xuewei Luo
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China.
| | - Chao Chen
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China.
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China. .,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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6
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Riente P, Fianchini M, Pericàs MA, Noel T. Accelerating the Photocatalytic Atom Transfer Radical Addition Reaction Induced by Bi2O3 with Amines: Experiment and Computation. ChemCatChem 2022. [DOI: 10.1002/cctc.202200319] [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)
- Paola Riente
- University of Amsterdam Faculty of Science: Universiteit van Amsterdam Faculteit der Natuurwetenschappen Wiskunde en Informatica Chemistry NETHERLANDS
| | - Mauro Fianchini
- Institute of Chemical Research of Catalonia: Institut Catala d'Investigacio Quimica Chemistry SPAIN
| | - Miquel A. Pericàs
- Institute of Chemical Research of Catalonia: Institut Catala d'Investigacio Quimica Chemistry SPAIN
| | - Timothy Noel
- University of Amsterdam Van't Hoff Institute for Molecular Science PO Box 94157Science Park 904 1090 GD Amsterdam NETHERLANDS
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7
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Yamamoto Y, Suzuki H, Kuroyanagi E, Yamada K, Yasui T. Co-Catalyzed atom transfer radical addition of bromodifluoroacetamides, expanding the scope of radical difluoroalkylation. Org Biomol Chem 2022; 20:2867-2872. [PMID: 35302578 DOI: 10.1039/d2ob00437b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The atom transfer radical addition (ATRA) of bromodifluoroacetamides to arylalkynes and terminal alkenes was conducted using von Wangelin's Co catalyst system (CoBr2/1,2-bis(diphenylphosphino)benzene/Zn) in acetone/H2O at 30 °C to afford the corresponding functionalized difluoroacetamides in 33-89% yields. Moreover, the Co catalyst was successfully applied to the tandem addition/cyclization of 1,6-diene and -enyne substrates and intramolecular ATRA of N-allyl and N-propargyl bromodifluoroacetamides, significantly expanding the scope of radical difluoroalkylation.
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Affiliation(s)
- Yoshihiko Yamamoto
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan.
| | - Harufumi Suzuki
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan.
| | - Eisuke Kuroyanagi
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan.
| | - Keiji Yamada
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan.
| | - Takeshi Yasui
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan.
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8
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Lu D, Li Y, Wang P, Wang Z, Yang D, Gong Y. Cu-Catalyzed C (sp3)–N Coupling and Alkene Carboamination Enabled by Ligand-Promoted Selective Hydrazine Transfer to Alkyl Radicals. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00250] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Dengfu Lu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan, Hubei 430074, China
| | - Yadong Li
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan, Hubei 430074, China
| | - Peng Wang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan, Hubei 430074, China
| | - Zijie Wang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan, Hubei 430074, China
| | - Daoyi Yang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan, Hubei 430074, China
| | - Yuefa Gong
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan, Hubei 430074, China
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9
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Wu F, Li Z, Huang G, Wu J, Wu J, Yu Y. The Visible Light‐mediated Tandem Addition/Elimination Reaction of Iododifluoromethyl Ketones and Alkenes. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fanhong Wu
- Shanghai Institute of Technology Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology CHINA
| | - Zhi Li
- Shanghai Institute of Technology Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology CHINA
| | | | - Jihong Wu
- Shanghai Institute of Technology Shanghai CHINA
| | - Jingjing Wu
- Shanghai Institute of Technology School of Chemcial and Environmental Engineering 100 Haiquan RD 201418 Shanghai CHINA
| | - Yanyan Yu
- Shanghai Institute of Technology shanghai CHINA
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10
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Li D. Functionalized β,β-dichloroenones and β,β-dibromoenones as versatile building blocks: Synthesis and transformations. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Li Y, Sun N, Zhang C, Hao M. Base‐Promoted
Formylation and
N
‐Difluoromethylation
of Azaindoles with Ethyl Bromodifluoroacetate as a Carbon Source. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yang Li
- Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi'an Polytechnic University Xi'an Shaanxi 710048 China
| | - Ning Sun
- Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi'an Polytechnic University Xi'an Shaanxi 710048 China
| | - Cai‐Lin Zhang
- Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi'an Polytechnic University Xi'an Shaanxi 710048 China
| | - Meng Hao
- Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi'an Polytechnic University Xi'an Shaanxi 710048 China
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12
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Kostromitin VS, Zemtsov AA, Kokorekin VA, Levin VV, Dilman AD. Atom-transfer radical addition of fluoroalkyl bromides to alkenes via a photoredox/copper catalytic system. Chem Commun (Camb) 2021; 57:5219-5222. [PMID: 33908970 DOI: 10.1039/d1cc01609a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A method for the addition of fluorinated alkyl bromides to alkenes is described. The reaction proceeds under visible light irradiation in the presence of two catalysts: Ir(ppy)3 and N-heterocyclic carbene ligated copper bromide (IMesCuBr). The role of the iridium photocatalyst is to generate the fluoralkyl radical, while the copper promotes formation of the carbon-bromine bond.
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Affiliation(s)
- Vladislav S Kostromitin
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation and Lomonosov Moscow State University, Department of Chemistry, Moscow 119991, Leninskie Gory 1-3, Russian Federation
| | - Artem A Zemtsov
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation
| | - Vladimir A Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation
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13
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Li L, Huang S, Mao K, Lv L, Li Z. Synthesis of isoxazoles via cyclization of β-fluoro enones with sodium azide. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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14
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Abstract
A novel diethylzinc-mediated radical 1,2-addition of perfluoroalkyl iodides to unactivated alkenes and alkynes is presented, which demonstrates a novel way to generate an ethyl difluoroacetate radical. This method is highly efficient and gives full conversions of the substrates, high yields of the products, and negligible byproducts and requires no column chromatography purifications. The mild conditions enable this protocol to exhibit excellent functional group compatibility.
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Affiliation(s)
- Xin Li
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Boulevard, Xiamen 361021, Fujian, China
| | - Songtao He
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Boulevard, Xiamen 361021, Fujian, China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Boulevard, Xiamen 361021, Fujian, China.,State Key Laboratory of Organometallic Chemistry and Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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15
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Gao B, Ni Y, Liu X, Jiang T, Yan Q, Yang R, Zhang X. Copper‐Catalyzed Difluoroalkylation‐Thiolation of Alkenes Promoted by Na
2
S
2
O
5. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Bao Gao
- Department of Applied Chemistry Anhui Agricultural University Hefei 230036 People's Republic of China
| | - Yingjie Ni
- Department of Applied Chemistry Anhui Agricultural University Hefei 230036 People's Republic of China
| | - Xiaojun Liu
- Department of Applied Chemistry Anhui Agricultural University Hefei 230036 People's Republic of China
| | - Tao Jiang
- Department of Applied Chemistry Anhui Agricultural University Hefei 230036 People's Republic of China
| | - Qian Yan
- Department of Applied Chemistry Anhui Agricultural University Hefei 230036 People's Republic of China
| | - Ruiting Yang
- Department of Applied Chemistry Anhui Agricultural University Hefei 230036 People's Republic of China
| | - Xiuli Zhang
- Department of Applied Chemistry Anhui Agricultural University Hefei 230036 People's Republic of China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Shanghai 200032 PR China
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16
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Li D. Copper-Catalyzed Alkylation of Silyl Enol Ethers with Sterically Hindered α-Bromocarbonyls: Access to the Histamine H 3 Receptor Antagonist. J Org Chem 2021; 86:609-618. [PMID: 33295766 DOI: 10.1021/acs.joc.0c02277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A general and efficient copper-catalyzed alkylation of silyl enol ethers with functionalized alkyl bromides has been developed for the synthesis of the sterically hindered γ-ketoesters. The transformation was induced through C(sp3)-halogen activation of commercially available sterically hindered alkyl bromides under mild conditions in good results. The strategy could be used for the synthesis of biologically active histamine H3 receptor (H3R) antagonist for medicinal purposes.
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Affiliation(s)
- Dengke Li
- College of Chemistry and Environmental Science, Qujing Normal University, Qujing, Yunnan 655011, China
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17
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Zhu S, Yang H, Jiang A, Zhou B, Han Y, Yan C, Shi Y, Hou H. Copper-Catalyzed Bromodifluoroacetylative Cyclization of Enynes. J Org Chem 2020; 85:15667-15675. [PMID: 33176101 DOI: 10.1021/acs.joc.0c02114] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A copper-catalyzed bromodifluoroacetylative cyclization reaction is described. The treatment of bromodifluoroacete derivatives by CuI and B2Pin2 enables difluoroalkyl radical generation and triggers the radical addition/cyclization/bromination sequences. Bromodifluoroacetyl-derived ester, amide, and ketone were compatible and gave various vinyl C-Br bonds containing functionalized heterocycles in good yields.
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Affiliation(s)
- Shaoqun Zhu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Haibo Yang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Along Jiang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Bing Zhou
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Ying Han
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Chaoguo Yan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yaocheng Shi
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Hong Hou
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
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18
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Iron- or copper-catalyzed cascade chloromethylation of activated alkenes: Efficient access to chlorinated oxindoles. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152316] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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19
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Li K, Chen J, Yang C, Zhang K, Pan C, Fan B. Blue Light Promoted Difluoroalkylation of Aryl Ketones: Synthesis of Quaternary Alkyl Difluorides and Tetrasubstituted Monofluoroalkenes. Org Lett 2020; 22:4261-4265. [DOI: 10.1021/acs.orglett.0c01294] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kangkui Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
| | - Jingchao Chen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
| | - Chunhui Yang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
| | - Keyang Zhang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
| | - Chunxiang Pan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
| | - Baomin Fan
- School of Chemistry and Environment, Yunnan Minzu University, Kunming 650031, Yunnan China
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
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20
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Liu Z, Yang L, Zhang K, Chen W, Yu T, Wang L, Gao W, Tang B. Copper-Catalyzed Disulfonation of Terminal Alkynes with Sodium Arylsulfinates. Org Lett 2020; 22:2081-2086. [PMID: 32101442 DOI: 10.1021/acs.orglett.0c00575] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A novel and direct disulfonylation reaction of commercially available terminal alkynes under copper(I)/bromodifluoroacetate cocatalyst has been realized. This protocol provides a facile and practical pathway to selectively access (E)-1,2-disulfonylethenes, in which features good functional group compatibility, easily available starting materials, and excellent stereoselectivity with good yields.
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Affiliation(s)
- Zhenhua Liu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, P. R. China
| | - Lin Yang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, P. R. China
| | - Kaining Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, P. R. China
| | - Wanjiao Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, P. R. China
| | - Tian Yu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, P. R. China
| | - Lianxiao Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, P. R. China
| | - Wen Gao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, P. R. China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, P. R. China
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21
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Hu L, Deng Q, Zhou Y, Zhang X, Xiong Y. Cu2O-catalyzed phosphonyldifluoromethylation of allylic alcohols through a radical 1,2-aryl migration. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.130949] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Li D, Shen X. Iron-catalyzed regioselective alkylation of 1,4-quinones and coumarins with functionalized alkyl bromides. Org Biomol Chem 2020; 18:750-754. [DOI: 10.1039/c9ob02289a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A simple and efficient Fe-catalyzed regioselective alkylation of 1,4-quinones and coumarins, using functionalized alkyl bromides as alkylating reagents, has been developed.
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Affiliation(s)
- Dengke Li
- College of Chemistry and Environmental Science
- Qujing Normal University
- Qujing 655011
- China
| | - Xianfu Shen
- Center for Yunnan-Guizhou Plateau Chemical Functional Materials and Pollution Control
- Qujing Normal University
- Qujing 655011
- China
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23
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Dong DQ, Yang H, Shi JL, Si WJ, Wang ZL, Xu XM. Promising reagents for difluoroalkylation. Org Chem Front 2020. [DOI: 10.1039/d0qo00567c] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review describes recent advances in difluoroalkylation reactions using different substrates.
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Affiliation(s)
- Dao-Qing Dong
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Huan Yang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Jun-Lian Shi
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Wen-Jia Si
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Zu-Li Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Xin-Ming Xu
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
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24
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Li C, Zhao Y, Zhou J, Wang X, Hou J, Song Y, Liu W, Han G. Synthesis of difluoroalkylated 2-azaspiro[4.5]decane derivatives via copper-catalyzed difluoroalkylation/dearomatization of N-benzylacrylamides. Org Biomol Chem 2020; 18:8376-8380. [DOI: 10.1039/d0ob01833c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A copper-catalyzed synthesis of difluoroalkylated spiro-azacycles from N-benzylacrylamides is presented. The reaction involves the β-difluoroalkylation of acrylamide, 5-exo cyclization, and dearomatization.
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Affiliation(s)
- Chengwen Li
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- P. R. China
| | - Yilin Zhao
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- P. R. China
| | - Jiaxin Zhou
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- P. R. China
| | - Xue Wang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- P. R. China
| | - Jingli Hou
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- P. R. China
| | - Yuguang Song
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- P. R. China
| | - Wenjuan Liu
- Jiangsu Duxingzhiyuan New Material Technology Co. Ltd
- Nantong
- 226300
- P. R. China
| | - Guifang Han
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- P. R. China
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25
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Li K, Zhang X, Chen J, Gao Y, Yang C, Zhang K, Zhou Y, Fan B. Blue Light Induced Difluoroalkylation of Alkynes and Alkenes. Org Lett 2019; 21:9914-9918. [DOI: 10.1021/acs.orglett.9b03855] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kangkui Li
- Institution Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Kunming, 650500, China
| | - Xuexin Zhang
- Institution Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Kunming, 650500, China
| | - Jingchao Chen
- Institution Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Kunming, 650500, China
| | - Yang Gao
- Institution Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Kunming, 650500, China
| | - Chunhui Yang
- Institution Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Kunming, 650500, China
| | - Keyang Zhang
- Institution Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Kunming, 650500, China
| | - Yongyun Zhou
- School of Chemistry and Environment, Yunnan Minzu University, Yuehua Street, Kunming, 650500, China
- Institution Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Kunming, 650500, China
| | - Baomin Fan
- School of Chemistry and Environment, Yunnan Minzu University, Yuehua Street, Kunming, 650500, China
- Institution Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Kunming, 650500, China
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26
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Wang M, Zhang H, Liu J, Wu X, Zhu C. Radical Monofluoroalkylative Alkynylation of Olefins by a Docking–Migration Strategy. Angew Chem Int Ed Engl 2019; 58:17646-17650. [DOI: 10.1002/anie.201910514] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 09/18/2019] [Indexed: 01/09/2023]
Affiliation(s)
- Min Wang
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of Chemistry, Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Huihui Zhang
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of Chemistry, Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Jige Liu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of Chemistry, Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of Chemistry, Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of Chemistry, Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
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27
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Li D, Lei J. Thio radical-induced denitrogenative annulation of 1-azido-2-isocyanoarenes to construct 2-thiolated benzimidazoles. Org Biomol Chem 2019; 17:9666-9671. [PMID: 31691703 DOI: 10.1039/c9ob02165e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A method for the synthesis of 2-thiolated benzimidazoles is described starting from thiols and 1-azido-2-isocyanoarenes. The isocyano group works as an acceptor of various thio radicals, followed by denitrogenative annulation of the resulting imidoyl radical intermediates to the azido group, with nitrogen loss as the only process involving high bond-forming efficiency. The one-pot method for the synthesis of these products with high functional group tolerance in the benzimidazole-based ring is not available in previous literature.
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Affiliation(s)
- Dengke Li
- College of Chemistry and Environmental Science, Qujing Normal University, Qujing 655011, Yunnan, China.
| | - Jian Lei
- College of Chemical Engineering and Material, Quanzhou Normal University, Quanzhou 362000, Fujian, China.
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28
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Wang M, Zhang H, Liu J, Wu X, Zhu C. Radical Monofluoroalkylative Alkynylation of Olefins by a Docking–Migration Strategy. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910514] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Min Wang
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of Chemistry, Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Huihui Zhang
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of Chemistry, Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Jige Liu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of Chemistry, Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of Chemistry, Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of Chemistry, Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
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29
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Chen Y, Li L, He X, Li Z. Four-Component Reactions for the Synthesis of Perfluoroalkyl Isoxazoles. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03189] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yuanjin Chen
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Liangkui Li
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Xiao He
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Zhiping Li
- Department of Chemistry, Renmin University of China, Beijing 100872, China
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30
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Li D, Yang WC. Copper-catalyzed regioselective alkylation of heteroarenes with functionalized alkyl halides. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.06.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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31
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Xia ZH, Gao ZH, Dai L, Ye S. Visible-Light-Promoted Oxo-difluoroalkylation of Alkenes with DMSO as the Oxidant. J Org Chem 2019; 84:7388-7394. [PMID: 31083945 DOI: 10.1021/acs.joc.9b01077] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Visible-light-promoted oxo-difluoroalkylation (acetylation and acetamidation) of alkenes with dimethyl sulfoxide as both the solvent and the oxidant was developed, affording the corresponding α,α-difluoro-γ-ketoacetates and acetamides in modest yields. Both terminal and internal alkenes worked well for the reaction. This reaction features simple starting materials, a green oxidant, mild reaction conditions, and highly functional products.
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Affiliation(s)
- Zi-Hao Xia
- Beijing National Laboratory for Molecular Science, Key Laboratory of Molecular Recognition and Functional, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P. R. China.,University of Chinese Academy of Science , Beijing 100049 , P. R. China
| | - Zhong-Hua Gao
- Beijing National Laboratory for Molecular Science, Key Laboratory of Molecular Recognition and Functional, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Lei Dai
- Beijing National Laboratory for Molecular Science, Key Laboratory of Molecular Recognition and Functional, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P. R. China.,University of Chinese Academy of Science , Beijing 100049 , P. R. China
| | - Song Ye
- Beijing National Laboratory for Molecular Science, Key Laboratory of Molecular Recognition and Functional, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P. R. China.,University of Chinese Academy of Science , Beijing 100049 , P. R. China
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32
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Xu ZW, Xu WY, Pei XJ, Tang F, Feng YS. An efficient method for the N-formylation of amines under catalyst- and additive-free conditions. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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33
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Sun K, Wang S, Feng R, Zhang Y, Wang X, Zhang Z, Zhang B. Copper-Catalyzed Radical Selenodifluoromethylation of Alkenes: Access to CF 2-Containing γ-Lactams. Org Lett 2019; 21:2052-2055. [PMID: 30896184 DOI: 10.1021/acs.orglett.9b00240] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, a practical Cu-catalyzed selenodifluoromethylation protocol was developed, using readily available diselenides as the selenium source under external-oxidant-free conditions. Various structurally diverse 4-seleno-substituted α,α-difluoro-γ-lactams were obtained in moderate to excellent yields. Easy scaleup and the potential for product derivatization make this method attractive for the preparation of other valuable fIuorinated γ-lactams. Mechanistic studies suggest that the catalytic system may involve a radical pathway.
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Affiliation(s)
- Kai Sun
- College of Chemistry and Chemical Engineering , Anyang Normal University , Anyang 455000 , People's Republic of China
| | - Songnan Wang
- School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , 453007 , People's Republic of China
| | - Ranran Feng
- College of Chemistry and Chemical Engineering , Anyang Normal University , Anyang 455000 , People's Republic of China
| | - Yixiao Zhang
- College of Chemistry and Chemical Engineering , Anyang Normal University , Anyang 455000 , People's Republic of China
| | - Xin Wang
- College of Chemistry and Chemical Engineering , Anyang Normal University , Anyang 455000 , People's Republic of China
| | - Zhiguo Zhang
- School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , 453007 , People's Republic of China
| | - Bing Zhang
- College of Chemistry and Energy , Zhengzhou University , Zhengzhou 450001 , People's Republic of China
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34
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Fang HL, Sun Q, Ye R, Sun J, Han Y, Yan CG. Copper-catalyzed selective difunctionalization of N-heteroarenes through a halogen atom transfer radical process. NEW J CHEM 2019. [DOI: 10.1039/c9nj03471d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly regioselective Cu-catalyzed difunctionalization of quinolinium and benzothiazolim salts was developed with ether and halide (X = Br, Cl) as the halogen source under mild conditions.
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Affiliation(s)
- Hui-Lin Fang
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- People's Republic of China
| | - Qiu Sun
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- People's Republic of China
| | - Rong Ye
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- People's Republic of China
| | - Jing Sun
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- People's Republic of China
| | - Ying Han
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- People's Republic of China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- People's Republic of China
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35
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Dong YX, Li Y, Gu CC, Jiang SS, Song RJ, Li JH. Copper-Catalyzed Three-Components Intermolecular Alkylesterification of Styrenes with Toluenes and Peroxyesters or Acids. Org Lett 2018; 20:7594-7597. [DOI: 10.1021/acs.orglett.8b03330] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ying-Xia Dong
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Chang-Cheng Gu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Shuai-Shuai Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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