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1
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Fuchibe K, Ichikawa J. Generation of difluorocarbenes and introduction of fluorinated one carbon units into carbonyl and related compounds. Chem Commun (Camb) 2023; 59:2532-2540. [PMID: 36723345 DOI: 10.1039/d2cc03950h] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Difluorocarbene is a simple and versatile one-carbon unit for synthesizing acyclic and cyclic organofluorine compounds. However, the use of difluorocarbene in organic synthesis has been relatively limited because of the harsh conditions required for its generation, the toxicity of the precursors, and undesired dimerization. This feature article provides an account of (i) the generation of free and metal difluorocarbenes from trimethylsilyl 2,2-difluoro-2-(fluorosulfonyl)acetate (TFDA) or BrCF2CO2Li/Na and (ii) their application to the facile synthesis of valuable organofluorine compounds. The difluorocarbenes thus generated react with (thio)carbonyl compounds and silyl dienol ethers to provide a wide variety of products such as (a) difluoromethyl (thio)ethers, (b) fluorinated thiophenes, (c) fluorinated thia/oxazoles, (d) fluorinated cyclopentanones and (e) difluoroalkenes.
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Affiliation(s)
- Kohei Fuchibe
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
| | - Junji Ichikawa
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
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2
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Fuchibe K, Morota Y, Miura T, Ichikawa J. Difluorocarbene-Based [4 + 1] Cycloaddition Strategy for Synthesizing Derivatives of 5-Fluorinated Thiazoles and Oxazoles. CHEM LETT 2022. [DOI: 10.1246/cl.220212] [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)
- Kohei Fuchibe
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305–8571, Japan
| | - Yuki Morota
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305–8571, Japan
| | - Takaya Miura
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305–8571, Japan
| | - Junji Ichikawa
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305–8571, Japan
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3
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Dai P, Li C, Li Y, Zhu Y, Teng P, Gu Y, Zhang W. Direct Difluoromethylation of Heterocycles through Photosensitized Electron Transfer. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Peng Dai
- Jiangsu Key Laboratory of Pesticide Science College of Sciences Nanjing Agricultural University Nanjing 210095 China
| | - Chenxiao Li
- Jiangsu Key Laboratory of Pesticide Science College of Sciences Nanjing Agricultural University Nanjing 210095 China
| | - Yufei Li
- Jiangsu Key Laboratory of Pesticide Science College of Sciences Nanjing Agricultural University Nanjing 210095 China
| | - Yuchuan Zhu
- Jiangsu Key Laboratory of Pesticide Science College of Sciences Nanjing Agricultural University Nanjing 210095 China
| | - Peng Teng
- Jiangsu Key Laboratory of Pesticide Science College of Sciences Nanjing Agricultural University Nanjing 210095 China
| | - Yu‐Cheng Gu
- Syngenta Jealott's Hill International Research Centre Bracknell Berkshire RG42 6EY United Kingdom, UK
| | - Wei‐Hua Zhang
- Jiangsu Key Laboratory of Pesticide Science College of Sciences Nanjing Agricultural University Nanjing 210095 China
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5
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Fuchibe K, Yamada A, Hachinohe K, Matsumoto K, Takayama R, Ichikawa J. Synthesis of Difluoroalkenes from Thiocarbonyl Compounds via Difluorothiiranes: Electrophilic Counterpart to Wittig-Type Difluoromethylidenation. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Kohei Fuchibe
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Atsushi Yamada
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Kosei Hachinohe
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Kana Matsumoto
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Ryo Takayama
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Junji Ichikawa
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
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Loison A, Toulgoat F, Billard T, Hanquet G, Panossian A, Leroux FR. Recent synthetic methods towards the –OCHF2 moiety. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132458] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Karuo Y, Kametani A, Tarui A, Sato K, Kawai K, Omote M. Synthesis of aryl 2-bromo-2-chloro-1,1-difluoroethyl ethers through the base-mediated reaction between phenols and halothane. Beilstein J Org Chem 2021; 17:89-96. [PMID: 33519995 PMCID: PMC7814179 DOI: 10.3762/bjoc.17.9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/11/2020] [Indexed: 12/26/2022] Open
Abstract
An efficient and convenient method for the synthesis of structurally unique and highly functionalized aryl 2-bromo-2-chloro-1,1-difluoroethyl ethers has been developed. This approach exhibits a broad reaction scope, a simple operation and without the need of any expensive transition-metal catalyst, highly toxic or corrosive reagents. Notably, we demonstrate the potential utility of halothane for the synthesis of aryl gem-difluoroalkyl ethers containing the bromochloromethyl group.
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Affiliation(s)
- Yukiko Karuo
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Ayaka Kametani
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Atsushi Tarui
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Kazuyuki Sato
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Kentaro Kawai
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Masaaki Omote
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
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8
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Zhu J, Zheng H, Xue XS, Xiao Y, Liu Y, Shen Q. Carbon-Selective Difluoromethylation of Soft Carbon Nucleophiles with Difluoromethylated Sulfonium Ylide. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800383] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jiansheng Zhu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy Sciences, Chinese Academy of Sciences; 345 Lingling Road, Shanghai 200032 China
| | - Hanliang Zheng
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineer, Nankai University; Tianjin 300071 China
| | - Xiao-Song Xue
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineer, Nankai University; Tianjin 300071 China
| | - Yisa Xiao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy Sciences, Chinese Academy of Sciences; 345 Lingling Road, Shanghai 200032 China
| | - Yafei Liu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy Sciences, Chinese Academy of Sciences; 345 Lingling Road, Shanghai 200032 China
| | - Qilong Shen
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy Sciences, Chinese Academy of Sciences; 345 Lingling Road, Shanghai 200032 China
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9
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Takayama R, Yamada A, Fuchibe K, Ichikawa J. Synthesis of Sulfanylated Difluoroalkenes: Electrophilic Difluoromethylidenation of Dithioesters with Difluorocarbene. Org Lett 2017; 19:5050-5053. [DOI: 10.1021/acs.orglett.7b02222] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryo Takayama
- Division of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305−8571, Japan
| | - Atsushi Yamada
- Division of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305−8571, Japan
| | - Kohei Fuchibe
- Division of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305−8571, Japan
| | - Junji Ichikawa
- Division of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305−8571, Japan
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10
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Fuchibe K, Takayama R, Yokoyama T, Ichikawa J. Regioselective Synthesis of α-Fluorinated Cyclopentenones by Organocatalytic Difluorocyclopropanation and Fluorine-Directed and Fluorine-Activated Nazarov Cyclization. Chemistry 2017; 23:2831-2838. [DOI: 10.1002/chem.201604578] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Indexed: 01/15/2023]
Affiliation(s)
- Kohei Fuchibe
- Division of Chemistry; Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba Ibaraki 305-8571 Japan
| | - Ryo Takayama
- Division of Chemistry; Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba Ibaraki 305-8571 Japan
| | - Takaharu Yokoyama
- Department of Applied Chemistry; Faculty of Engineering; Kyushu Institute of Technology; Kitakyushu Fukuoka 804-8550 Japan
| | - Junji Ichikawa
- Division of Chemistry; Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba Ibaraki 305-8571 Japan
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11
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Aono T, Sasagawa H, Fuchibe K, Ichikawa J. Regioselective Synthesis of α,α-Difluorocyclopentanone Derivatives: Domino Nickel-Catalyzed Difluorocyclopropanation/Ring-Expansion Sequence of Silyl Dienol Ethers. Org Lett 2015; 17:5736-9. [DOI: 10.1021/acs.orglett.5b02726] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tatsuya Aono
- Division
of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Hisashi Sasagawa
- Division
of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Kohei Fuchibe
- Division
of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Junji Ichikawa
- Division
of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
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12
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13
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Leung JCT, Sammis GM. Radical Decarboxylative Fluorination of Aryloxyacetic Acids UsingN-Fluorobenzenesulfonimide and a Photosensitizer. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500038] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ni C, Hu M, Hu J. Good partnership between sulfur and fluorine: sulfur-based fluorination and fluoroalkylation reagents for organic synthesis. Chem Rev 2014; 115:765-825. [PMID: 25144886 DOI: 10.1021/cr5002386] [Citation(s) in RCA: 940] [Impact Index Per Article: 94.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Chuanfa Ni
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Ling-Ling Road, Shanghai City, Shanghai 200032, China
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Zhang CP, Chen QY, Guo Y, Xiao JC, Gu YC. Difluoromethylation and trifluoromethylation reagents derived from tetrafluoroethane β-sultone: Synthesis, reactivity and applications. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2013.11.010] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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16
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Li L, Wang F, Ni C, Hu J. Synthesis ofgem-Difluorocyclopropa(e)nes and O-, S-, N-, and P-Difluoromethylated Compounds with TMSCF2Br. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306703] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Li L, Wang F, Ni C, Hu J. Synthesis ofgem-Difluorocyclopropa(e)nes and O-, S-, N-, and P-Difluoromethylated Compounds with TMSCF2Br. Angew Chem Int Ed Engl 2013; 52:12390-4. [DOI: 10.1002/anie.201306703] [Citation(s) in RCA: 246] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Indexed: 11/11/2022]
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18
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Eusterwiemann S, Martinez H, Dolbier WR. Methyl 2,2-Difluoro-2-(fluorosulfonyl)acetate, a Difluorocarbene Reagent with Reactivity Comparable to That of Trimethylsilyl 2,2-Difluoro-2-(fluorosulfonyl)acetate (TFDA). J Org Chem 2012; 77:5461-4. [DOI: 10.1021/jo300876z] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Steffen Eusterwiemann
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Henry Martinez
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - William R. Dolbier
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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Fuchibe K, Koseki Y, Aono T, Sasagawa H, Ichikawa J. NHC-catalyzed generation of difluorocarbene and its application to difluoromethylation of oxygen nucleophiles. J Fluor Chem 2012. [DOI: 10.1016/j.jfluchem.2011.09.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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