1
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Vuagnat M, Tognetti V, Jubault P, Besset T. Ru(II)-Catalyzed Hydroarylation of in situ Generated 3,3,3-Trifluoro-1-propyne by C-H Bond Activation: A Facile and Practical Access to β-Trifluoromethylstyrenes. Chemistry 2022; 28:e202201928. [PMID: 35736795 PMCID: PMC9804422 DOI: 10.1002/chem.202201928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Indexed: 01/05/2023]
Abstract
In this study, a practical and straightforward synthesis of β-(E)-trifluoromethylstyrenes by ruthenium-catalyzed C-H bond activation was developed. The readily available and inexpensive 2-bromo-3,3,3-trifluoropropene (BTP), a non-ozone depleting reagent, was used as a reservoir of 3,3,3-trifluoropropyne. With this approach, the monofunctionalization of a panel of heteroarenes was possible in a safe and scalable manner (23 examples, up to 87 % yield). Mechanistic investigations and density functional theory (DFT) calculations were also conducted to get a better understanding of the mechanism of this transformation. These studies suggested that 1) a cyclometallated ruthenium complex enabled the transformation, 2) this complex exhibited high efficiency in this transformation compared to the commercially available [RuCl2 (p-cymene)]2 and 3) the mechanism proceeded through a bis-cyclometallated ruthenium intermediate for the carboruthenation step.
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Affiliation(s)
- Martin Vuagnat
- Normandie UnivINSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance
| | - Vincent Tognetti
- Normandie UnivINSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance
| | - Philippe Jubault
- Normandie UnivINSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance
| | - Tatiana Besset
- Normandie UnivINSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance
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2
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Hussain M, Liu J, Fu L, Hasan M. Synthesis of imidazo[1, 2‐a]pyridines via the silver acetate‐catalyzed Groebke‐Blackburn‐Bienayme reaction with ethylene glycol as a biodegradable and sustainable solvent. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3746] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Mustafa Hussain
- State key laboratory of fine chemicalDalian University of Technology Dalian People's Republic of China
| | - Jianhui Liu
- State key laboratory of fine chemicalDalian University of Technology Dalian People's Republic of China
- School of Petroleum and Chemical EngineeringDalian University of Technology, Panjin Campus Panjin Liaoning Province People's Republic of China
| | - Lu Fu
- School of Petroleum and Chemical EngineeringDalian University of Technology, Panjin Campus Panjin Liaoning Province People's Republic of China
| | - Mehdi Hasan
- Department of ChemistryUniversity of Baltistan Skardu Pakistan
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3
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Ogawa F, Karuo Y, Yamazawa R, Miyanaga K, Hori K, Tani K, Yamada K, Saito Y, Funabiki K, Tarui A, Sato K, Ito K, Kawai K, Omote M. Synthesis of Small Fluorescent Molecules and Evaluation of Photophysical Properties. J Org Chem 2020; 85:1253-1258. [PMID: 31851516 DOI: 10.1021/acs.joc.9b02857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of aniline-based fluorophores were newly synthesized. To increase their fluorescence quantum yields, it was particularly important to substitute 3,3,3-trifluoroprop-1-enyl (TFPE) groups next to the amino group to benefit from an extended π-electron delocalization. Among these, 5-CN-2-TFPE-aniline was found to behave as an excellent fluorophore with a reasonable fluorescence quantum yield of 0.89 even in aqueous solution. l-Alanine peptide, a nonfluorescent analogue of 5-CN-2-TFPE-aniline, was synthesized and successfully employed as an enzyme probe to detect aminopeptidase N activity.
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Affiliation(s)
- Futa Ogawa
- Faculty of Pharmaceutical Sciences , Setsunan University , Hirakata , Osaka 573-0101 , Japan
| | - Yukiko Karuo
- Faculty of Pharmaceutical Sciences , Setsunan University , Hirakata , Osaka 573-0101 , Japan
| | - Ryuji Yamazawa
- Faculty of Pharmaceutical Sciences , Setsunan University , Hirakata , Osaka 573-0101 , Japan
| | - Kanae Miyanaga
- Division of Natural Sciences , Osaka Kyoiku University , Kashiwara , Osaka 582-8582 , Japan
| | - Kazushige Hori
- Division of Natural Sciences , Osaka Kyoiku University , Kashiwara , Osaka 582-8582 , Japan
| | - Keita Tani
- Division of Natural Sciences , Osaka Kyoiku University , Kashiwara , Osaka 582-8582 , Japan
| | - Kengo Yamada
- Department of Chemistry and Biomolecular Science , Gifu University , Yanagido, Gifu 501-1193 , Japan
| | - Yuki Saito
- Department of Chemistry and Biomolecular Science , Gifu University , Yanagido, Gifu 501-1193 , Japan
| | - Kazumasa Funabiki
- Department of Chemistry and Biomolecular Science , Gifu University , Yanagido, Gifu 501-1193 , Japan
| | - Atsushi Tarui
- Faculty of Pharmaceutical Sciences , Setsunan University , Hirakata , Osaka 573-0101 , Japan
| | - Kazuyuki Sato
- Faculty of Pharmaceutical Sciences , Setsunan University , Hirakata , Osaka 573-0101 , Japan
| | - Kiyoshi Ito
- Faculty of Pharmaceutical Sciences , Setsunan University , Hirakata , Osaka 573-0101 , Japan
| | - Kentaro Kawai
- Faculty of Pharmaceutical Sciences , Setsunan University , Hirakata , Osaka 573-0101 , Japan
| | - Masaaki Omote
- Faculty of Pharmaceutical Sciences , Setsunan University , Hirakata , Osaka 573-0101 , Japan
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4
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Zhang H, Xiao C, Zhang S, Zhang X. Radical C−H Bond Trifluoromethylation of Alkenes by High‐Valent Copper(III) Trifluoromethyl Compounds. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901105] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Hao‐Ran Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 People's Republic of China
| | - Chang Xiao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 People's Republic of China
| | - Song‐Lin Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 People's Republic of China
| | - Xiaoming Zhang
- School of Food Science and TechnologyJiangnan University Wuxi 214122 People's Republic of China
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5
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Ikeda A. [Approach for Producing New 3,3,3-Trifluoropropenylation Reagents: Introduction of a 3,3,3-Trifluoroprop-1-enyl Group for Drug Development]. YAKUGAKU ZASSHI 2019; 139:673-681. [PMID: 31061334 DOI: 10.1248/yakushi.18-00139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The chemistry of the 3,3,3-trifluoroprop-1-enyl (TFPE) group has attractive characteristics in medicinal chemistry as a new fluorine motif. However, there are no reports on the properties of this group because it is difficult to construct molecules with it. For the convenient construction of the TFPE group, a new fluorination reagent, CF3CH=CHTMS (1), was developed from commercially available chemicals with easy purification processes and excellent yields. The utility of 1 as a trifluoropropenylation reagent was exhibited in several types of reaction such as the Sonogashira cross-coupling reaction. Furthermore an indometacin analogue bearing a TFPE group showed greater pharmaceutical activity than the original indometacin. This review describes the details of these research studies under three topics: 1) synthesis of 1; 2) Sonogashira cross-coupling reaction of 1 with acetylene, followed by cyclization into an indole ring; and 3) synthesis of an indometacin analogue with a TFPE group.
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Affiliation(s)
- Akari Ikeda
- Faculty of Pharmaceutical Sciences, Setsunan University
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6
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Hong H, Li Y, Chen L, Li B, Zhu Z, Chen X, Chen L, Huang Y. Electrochemical Synthesis Strategy for Cvinyl-CF3 Compounds through Decarboxylative Trifluoromethylation. J Org Chem 2019; 84:5980-5986. [DOI: 10.1021/acs.joc.9b00766] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Huanliang Hong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Yibiao Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Lu Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Bin Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Zhongzhi Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Xiuwen Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Ling Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Yubing Huang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
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7
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Chen Y, You Y, Weng Z. Syntheses of 2-(2,2,2-trifluoroethylidene)/(2,2-difluoroethyl)-1,3-dicarbonyl compounds and their fungicidal activities. Org Chem Front 2019. [DOI: 10.1039/c8qo01118d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A Knoevenagel-type reaction of 1,3-diketone substrates with trifluoroacetic/difluoroacetic anhydride for the synthesis of 2-(2,2,2-trifluoroethylidene)/(2,2-difluoroethyl)-1,3-dicarbonyl compounds has been developed.
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Affiliation(s)
- Yueji Chen
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- 350108
| | - Yi You
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- 350108
| | - Zhiqiang Weng
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- 350108
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8
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Zhang SL, Xiao C. Cu(III)–CF3 Complex Enabled Unusual (Z)-Selective Hydro-trifluoromethylation of Terminal Alkynes. J Org Chem 2018; 83:10908-10915. [DOI: 10.1021/acs.joc.8b01586] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Song-Lin Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Chang Xiao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
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9
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Lu Y, Huang C, Liu C, Guo Y, Chen QY. Iron(III) Porphyrin Catalyzed Olefination of Aldehydes with 2,2,2-Trifluorodiazoethane (CF3
CHN2
). European J Org Chem 2018. [DOI: 10.1002/ejoc.201800325] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yang Lu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Chuyu Huang
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Chao Liu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Yong Guo
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Qing-Yun Chen
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
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10
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Wang Z, Yuan Z, Han X, Weng Z. Aluminium Chloride-Mediated Synthesis of 1-Chloro-2,2,2-Trifluoroethylidene-Substituted Pyrrolidones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800275] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zeng Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry; Fuzhou University; Fujian 350108 People's Republic of China
| | - Zihang Yuan
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry; Fuzhou University; Fujian 350108 People's Republic of China
| | - Xiaoyan Han
- Testing and Analysis Center; Soochow University; Suzhou 215123 People's Republic of China
| | - Zhiqiang Weng
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry; Fuzhou University; Fujian 350108 People's Republic of China
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11
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Sakaguchi H, Ohashi M, Ogoshi S. Fluorinated Vinylsilanes from the Copper-Catalyzed Defluorosilylation of Fluoroalkene Feedstocks. Angew Chem Int Ed Engl 2017; 57:328-332. [DOI: 10.1002/anie.201710866] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 11/09/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Hironobu Sakaguchi
- Department of Applied Chemistry; Faculty of Engineering; Osaka University; Suita Osaka 565-0871 Japan
| | - Masato Ohashi
- Department of Applied Chemistry; Faculty of Engineering; Osaka University; Suita Osaka 565-0871 Japan
| | - Sensuke Ogoshi
- Department of Applied Chemistry; Faculty of Engineering; Osaka University; Suita Osaka 565-0871 Japan
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12
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Sakaguchi H, Ohashi M, Ogoshi S. Fluorinated Vinylsilanes from the Copper-Catalyzed Defluorosilylation of Fluoroalkene Feedstocks. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201710866] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hironobu Sakaguchi
- Department of Applied Chemistry; Faculty of Engineering; Osaka University; Suita Osaka 565-0871 Japan
| | - Masato Ohashi
- Department of Applied Chemistry; Faculty of Engineering; Osaka University; Suita Osaka 565-0871 Japan
| | - Sensuke Ogoshi
- Department of Applied Chemistry; Faculty of Engineering; Osaka University; Suita Osaka 565-0871 Japan
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13
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He L, Yang X, Tsui GC. Domino Hydroboration/Trifluoromethylation of Alkynes Using Fluoroform-Derived [CuCF3]. J Org Chem 2017; 82:6192-6201. [DOI: 10.1021/acs.joc.7b00755] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lisi He
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
| | - Xinkan Yang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
| | - Gavin Chit Tsui
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
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14
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Zhao Y, Zhou Y, Zhang C, Wang H, Zhao J, Jin K, Liu J, Liu J, Qu J. Palladium-catalyzed geometrically selective hydrogenation of (Z)-trifluoromethyl alkenyl triflate: an efficient approach to (Z) or (E)-3,3,3-trifluoropropenyl derivatives. Org Biomol Chem 2017; 15:5693-5700. [DOI: 10.1039/c7ob00970d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of (Z)- or (E)-3,3,3-trifluoropropenyl derivatives with excellent divergent geometric control via hydrogenation of (Z)-trifluoromethyl alkenyl triflates.
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Affiliation(s)
- Yilong Zhao
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P.R. China
| | - Yuhan Zhou
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P.R. China
| | - Chunxia Zhang
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P.R. China
| | - Huan Wang
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P.R. China
| | - Jinfeng Zhao
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- P.R. China
| | - Kun Jin
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P.R. China
| | - Jihong Liu
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- P.R. China
| | - Jianhui Liu
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin 124221
- P.R. China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P.R. China
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15
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Ma JJ, Yi WB. Copper-catalyzed fluoroalkylation of alkynes, and alkynyl & vinyl carboxylic acids with fluoroalkyl halides. Org Biomol Chem 2017; 15:4295-4299. [DOI: 10.1039/c7ob00641a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper-catalyzed fluoroalkylation of alkynes and alkynyl carboxylic acids has been achieved with high functional-group tolerance and excellent regio- and stereoselectivities.
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Affiliation(s)
- Jing-Jing Ma
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
| | - Wen-Bin Yi
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
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16
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Foubelo F, Nájera C, Yus M. The Hiyama Cross-Coupling Reaction: New Discoveries. CHEM REC 2016; 16:2521-2533. [DOI: 10.1002/tcr.201600063] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Indexed: 12/19/2022]
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17
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Ikeda A, Omote M, Kusumoto K, Komori M, Tarui A, Sato K, Ando A. A dramatic enhancing effect of InBr3 towards the oxidative Sonogashira cross-coupling reaction of 2-ethynylanilines. Org Biomol Chem 2016; 14:2127-33. [PMID: 26782816 DOI: 10.1039/c5ob02558c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The addition of InBr3 to the oxidative Sonogashira cross-coupling reaction of 2-ethynylaniline with (E)-trimethyl(3,3,3-trifluoroprop-1-enyl)silane led to a dramatic increase in the reactivity to afford the corresponding 1,3-enynes bearing a trifluoromethyl group on their terminal sp(2) carbon. The subsequent cyclization of these 1,3-enynes under palladium catalysis provides access to the corresponding indoles bearing a 3,3,3-trifluoroprop-1-enyl group at their 2-position.
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Affiliation(s)
- A Ikeda
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - M Omote
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - K Kusumoto
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - M Komori
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - A Tarui
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - K Sato
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - A Ando
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
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18
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Decarboxylative and Denitrative Trifluoromethylation for the Synthesis of CvinylCF3Compounds with Togni (II) Reagent. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500631] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Egami H, Usui Y, Kawamura S, Nagashima S, Sodeoka M. Product Control in Alkene Trifluoromethylation: Hydrotrifluoromethylation, Vinylic Trifluoromethylation, and Iodotrifluoromethylation using Togni Reagent. Chem Asian J 2015; 10:2190-9. [PMID: 25960034 PMCID: PMC4600224 DOI: 10.1002/asia.201500359] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 05/09/2015] [Indexed: 11/25/2022]
Abstract
Hydrotrifluoromethylation, vinylic trifluoromethylation, and iodotrifluoromethylation of simple alkenes have been achieved by using Togni reagent in the absence of any transition metal catalyst. These reactions were readily controllable by selection of appropriate salts and solvents. The addition of K2CO3 afforded the hydrotrifluoromethylation product, with DMF acting not only as a solvent, but also as the hydrogen source. In contrast, the use of tetra-n-butylammonium iodide (TBAI) in 1,4-dioxane resulted in vinylic trifluoromethylation, while the use of KI afforded the iodotrifluoromethylation product. The vinylic trifluoromethylation product was obtained by treatment of the iodotrifluoromethylation product with ammonium 2-iodobenzoate, indicating that it was formed through an elimination reaction of the in-situ-generated iodotrifluoromethylation product, and the solubility of the resulting 2-iodobenzoate salt plays a key role in the product switching. A radical-clock experiment showed that these reactions proceed via radical intermediates.
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Affiliation(s)
- Hiromichi Egami
- Synthetic Organic Chemistry Laboratory, RIKEN2-1 Hirosawa, Wako, Saitama, 351-0198, Japan E-mail:
- Sodeoka Live Cell Chemistry Project, ERATO, Japan Science and Technology Agency2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- RIKEN Center for Sustainable Resource Science2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Yoshihiko Usui
- Synthetic Organic Chemistry Laboratory, RIKEN2-1 Hirosawa, Wako, Saitama, 351-0198, Japan E-mail:
- School of Pharmaceutical Sciences, University of Shizuoka5-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Shintaro Kawamura
- Synthetic Organic Chemistry Laboratory, RIKEN2-1 Hirosawa, Wako, Saitama, 351-0198, Japan E-mail:
- Sodeoka Live Cell Chemistry Project, ERATO, Japan Science and Technology Agency2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Graduate School of Science and Engineering, Saitama University255 Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | - Sayoko Nagashima
- School of Pharmaceutical Sciences, University of Shizuoka5-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Mikiko Sodeoka
- Synthetic Organic Chemistry Laboratory, RIKEN2-1 Hirosawa, Wako, Saitama, 351-0198, Japan E-mail:
- Sodeoka Live Cell Chemistry Project, ERATO, Japan Science and Technology Agency2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Graduate School of Science and Engineering, Saitama University255 Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
- School of Pharmaceutical Sciences, University of Shizuoka5-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
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20
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Kathiravan S, Nicholls IA. Palladium Catalyzed Vinyltrifluoromethylation of Aryl Halides through Decarboxylative Cross-Coupling with 2-(Trifluoromethyl)acrylic Acid. Org Lett 2015; 17:1874-7. [DOI: 10.1021/acs.orglett.5b00551] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Subban Kathiravan
- Bioorganic & Biophysical Chemistry Laboratory, Linnaeus University Centre for Biomaterials Chemistry, Linnaeus University, SE-391 82 Kalmar, Sweden
| | - Ian A. Nicholls
- Bioorganic & Biophysical Chemistry Laboratory, Linnaeus University Centre for Biomaterials Chemistry, Linnaeus University, SE-391 82 Kalmar, Sweden
- Department
of Chemistry, BMC, Uppsala University, SE-751 23 Uppsala, Sweden
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21
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Ramachandran PV, Mitsuhashi W. (Z)- or (E)-Selective Hydrogenation of Potassium (3,3,3-Trifluoroprop-1-yn-1-yl)trifluoroborate: Route to Either Isomer of β-Trifluoromethylstyrenes. Org Lett 2015; 17:1252-5. [DOI: 10.1021/acs.orglett.5b00235] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- P. Veeraraghavan Ramachandran
- Herbert C. Brown Center for
Borane Research, Department of Chemistry, Purdue University, 560
Oval Drive, West Lafayette, Indiana 47907, United States
| | - Wataru Mitsuhashi
- Herbert C. Brown Center for
Borane Research, Department of Chemistry, Purdue University, 560
Oval Drive, West Lafayette, Indiana 47907, United States
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22
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Veeraraghavan Ramachandran P, Otoo B. Facile synthesis of 1-trifluoromethylalkenes via the decarboxylation of α-trifluoromethyl-β-lactones. Chem Commun (Camb) 2015; 51:12388-90. [PMID: 26140312 DOI: 10.1039/c5cc03230j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DCC-mediated cyclodehydration of α-trifluoromethyl-β-hydroxy acids provides α-trifluoromethylated β-lactone intermediates, without loss of stereoselectivity. These lactones undergo facile decarboxylation providing a simple route to obtain both alkyl and aryl 1-trifluoromethyl alkenes in excellent yields and stereoselectivity.
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Affiliation(s)
| | - Barnabas Otoo
- Herbert C. Brown Center for Borane Research
- Purdue University
- West Lafayette
- USA
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23
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Ikeda A, Omote M, Kusumoto K, Tarui A, Sato K, Ando A. One-pot synthesis of 1,3-enynes with a CF3 group on the terminal sp2 carbon by an oxidative Sonogashira cross-coupling reaction. Org Biomol Chem 2015. [DOI: 10.1039/c5ob01290b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One-pot synthesis of 1,3-enynes with a CF3 group on the terminal sp2 carbon was achieved by an oxidative Sonogashira cross-coupling reaction with (E)-trimethyl(3,3,3-trifluoroprop-1-enyl)silane.
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Affiliation(s)
- Akari Ikeda
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
| | - Masaaki Omote
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
| | - Kana Kusumoto
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
| | - Atsushi Tarui
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
| | - Kazuyuki Sato
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
| | - Akira Ando
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
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24
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Oxy-trifluoromethylation of alkenes and its application to the synthesis of β-trifluoromethylstyrene derivatives. J Fluor Chem 2014. [DOI: 10.1016/j.jfluchem.2014.05.009] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Lin QY, Xu XH, Qing FL. Chemo-, Regio-, and Stereoselective Trifluoromethylation of Styrenes via Visible Light-Driven Single-Electron Transfer (SET) and Triplet–Triplet Energy Transfer (TTET) Processes. J Org Chem 2014; 79:10434-46. [DOI: 10.1021/jo502040t] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Qing-Yu Lin
- Key
Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Xiu-Hua Xu
- Key
Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Feng-Ling Qing
- Key
Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- College
of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
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26
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Egami H, Sodeoka M. Trifluormethylierung von Alkenen unter gleichzeitiger Einführung weiterer funktioneller Gruppen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309260] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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27
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Egami H, Sodeoka M. Trifluoromethylation of alkenes with concomitant introduction of additional functional groups. Angew Chem Int Ed Engl 2014; 53:8294-308. [PMID: 24961669 DOI: 10.1002/anie.201309260] [Citation(s) in RCA: 555] [Impact Index Per Article: 55.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Indexed: 11/08/2022]
Abstract
The trifluoromethyl group is found in many synthetic bioactive compounds, and the difunctionalization of a C=C bond, as a powerful strategy for the construction of compounds with various functional groups, has been intensively investigated. Therefore, the difunctionalizing trifluoromethylation of alkenes has attracted growing interest because of the potential of the products as building blocks for bioactive molecules. In this review, we focus on recent advances in the trifluoromethylation of alkenes with concomitant introduction of additional functional groups.
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Affiliation(s)
- Hiromichi Egami
- Synthetic Organic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Sodeoka Live Cell Chemistry Project, ERATO, JST, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)
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28
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Tomita R, Yasu Y, Koike T, Akita M. Direct C-H trifluoromethylation of di- and trisubstituted alkenes by photoredox catalysis. Beilstein J Org Chem 2014; 10:1099-106. [PMID: 24991259 PMCID: PMC4077392 DOI: 10.3762/bjoc.10.108] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 04/14/2014] [Indexed: 11/23/2022] Open
Abstract
Background: Trifluoromethylated alkene scaffolds are known as useful structural motifs in pharmaceuticals and agrochemicals as well as functional organic materials. But reported synthetic methods usually require multiple synthetic steps and/or exhibit limitation with respect to access to tri- and tetrasubstituted CF3-alkenes. Thus development of new methodologies for facile construction of Calkenyl–CF3 bonds is highly demanded. Results: The photoredox reaction of alkenes with 5-(trifluoromethyl)dibenzo[b,d]thiophenium tetrafluoroborate, Umemoto’s reagent, as a CF3 source in the presence of [Ru(bpy)3]2+ catalyst (bpy = 2,2’-bipyridine) under visible light irradiation without any additive afforded CF3-substituted alkenes via direct Calkenyl–H trifluoromethylation. 1,1-Di- and trisubstituted alkenes were applicable to this photocatalytic system, providing the corresponding multisubstituted CF3-alkenes. In addition, use of an excess amount of the CF3 source induced double C–H trifluoromethylation to afford geminal bis(trifluoromethyl)alkenes. Conclusion: A range of multisubstituted CF3-alkenes are easily accessible by photoredox-catalyzed direct C–H trifluoromethylation of alkenes under mild reaction conditions. In particular, trifluoromethylation of triphenylethene derivatives, from which synthetically valuable tetrasubstituted CF3-alkenes are obtained, have never been reported so far. Remarkably, the present facile and straightforward protocol is extended to double trifluoromethylation of alkenes.
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Affiliation(s)
- Ren Tomita
- Chemical Resources Laboratory, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Yusuke Yasu
- Chemical Resources Laboratory, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Takashi Koike
- Chemical Resources Laboratory, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Munetaka Akita
- Chemical Resources Laboratory, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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29
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Jiménez-Aquino A, Vega JA, Trabanco AA, Valdés C. A General Synthesis of α-Trifluoromethylstyrenes through Palladium-Catalyzed Cross-Couplings with 1,1,1-Trifluoroacetone Tosylhydrazone. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300994] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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30
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Mao Z, Huang F, Yu H, Chen J, Yu Z, Xu Z. Copper-Catalyzed Trifluoromethylation of Internal Olefinic CH Bonds: Efficient Routes to Trifluoromethylated Tetrasubstituted Olefins and N-Heterocycles. Chemistry 2014; 20:3439-45. [DOI: 10.1002/chem.201305069] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Indexed: 11/07/2022]
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31
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Tarui A, Sato K, Omote M, Ando A. Synthesis of Fluorinated Heterocycles Designed to Deliver the Modified Bioactive Behavior: Synthetic Use of Ethyl Bromodifluoroacetate, Ethyl Dibromofluoroacetate and Fluorine Containing Vinylsilanes. J SYN ORG CHEM JPN 2014. [DOI: 10.5059/yukigoseikyokaishi.72.680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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32
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Aikawa K, Shimizu N, Honda K, Hioki Y, Mikami K. Effect of the trifluoromethyl group on torquoselectivity in the 4π ring-opening reaction of oxetenes: stereoselective synthesis of tetrasubstituted olefins. Chem Sci 2014. [DOI: 10.1039/c3sc52548a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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33
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Ikeda A, Omote M, Nomura S, Tanaka M, Tarui A, Sato K, Ando A. Oxidative 3,3,3-trifluoropropylation of arylaldehydes. Beilstein J Org Chem 2013; 9:2417-21. [PMID: 24367408 PMCID: PMC3869248 DOI: 10.3762/bjoc.9.279] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 10/10/2013] [Indexed: 11/23/2022] Open
Abstract
A reaction between (E)-trimethyl(3,3,3-trifluoroprop-1-en-1-yl)silane (1) and arylaldehydes 2 was triggered by fluoride anions to afford aryl 3,3,3-trifluoropropyl ketones 3 in moderate to good yield. A mechanistic study of this reaction indicated that it occurred via an allyl alkoxide (4). A subsequent 1,3-proton shift of the benzylic proton of 4 forms 3. This reaction involves oxidative 3,3,3-trifluoropropylation of an arylaldehyde to afford 4,4,4-trifluoro-1-arylbutan-1-one.
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Affiliation(s)
- Akari Ikeda
- 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
| | - Shiho Nomura
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Miyuu Tanaka
- 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
| | - Akira Ando
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
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34
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Ayeni DO, Mandal SK, Zajc B. Julia-Kocienski Approach to Trifluoromethyl-Substituted Alkenes 1.. Tetrahedron Lett 2013; 54:6008-6011. [PMID: 25568501 DOI: 10.1016/j.tetlet.2013.08.069] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A Julia-Kocienski approach to trifluoromethyl-substituted alkenes was evaluated in the reactions of 1,3-benzothiazol-2-yl, 1-phenyl-1H-tetrazol-5-yl, and 1-tbutyl-1H-tetrazol-5-yl 2,2,2-trifluoroethyl sulfones with aldehydes. Among the various conditions tested, the best yields were obtained with 1-phenyl-1H-tetrazol-5-yl 2,2,2-trifluoroethyl sulfone, in CsF-mediated, room temperature olefinations in DMSO. Aromatic aldehydes gave (trifluoromethyl)vinyl derivatives in 23-86% yields, with generally moderate stereoselectivity. Straightforward synthesis of the Julia-Kocienski reagent, and conversion to trifluoromethyl-substituted alkenes under mild reaction conditions, are the advantages of this approach.
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Affiliation(s)
- Deborah O Ayeni
- Department of Chemistry, The City College and The City University of New York, 160 Convent Avenue, New York, NY 10031-9198
| | - Samir K Mandal
- Department of Chemistry, The City College and The City University of New York, 160 Convent Avenue, New York, NY 10031-9198
| | - Barbara Zajc
- Department of Chemistry, The City College and The City University of New York, 160 Convent Avenue, New York, NY 10031-9198
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35
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Liang T, Neumann CN, Ritter T. Introduction of fluorine and fluorine-containing functional groups. Angew Chem Int Ed Engl 2013; 52:8214-64. [PMID: 23873766 DOI: 10.1002/anie.201206566] [Citation(s) in RCA: 1955] [Impact Index Per Article: 177.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Indexed: 01/20/2023]
Abstract
Over the past decade, the most significant, conceptual advances in the field of fluorination were enabled most prominently by organo- and transition-metal catalysis. The most challenging transformation remains the formation of the parent C-F bond, primarily as a consequence of the high hydration energy of fluoride, strong metal-fluorine bonds, and highly polarized bonds to fluorine. Most fluorination reactions still lack generality, predictability, and cost-efficiency. Despite all current limitations, modern fluorination methods have made fluorinated molecules more readily available than ever before and have begun to have an impact on research areas that do not require large amounts of material, such as drug discovery and positron emission tomography. This Review gives a brief summary of conventional fluorination reactions, including those reactions that introduce fluorinated functional groups, and focuses on modern developments in the field.
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Affiliation(s)
- Theresa Liang
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA
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36
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37
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Omote M, Tanaka M, Tanaka M, Ikeda A, Tarui A, Sato K, Ando A. Synthesis of 2-Aryl-3-trifluoromethylquinolines Using (E)-Trimethyl(3,3,3-trifluoroprop-1-enyl)silane. J Org Chem 2013; 78:6196-201. [DOI: 10.1021/jo400859s] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Masaaki Omote
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata 573-0101, Japan
| | - Miyuu Tanaka
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata 573-0101, Japan
| | - Miki Tanaka
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata 573-0101, Japan
| | - Akari Ikeda
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata 573-0101, Japan
| | - Atsushi Tarui
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata 573-0101, Japan
| | - Kazuyuki Sato
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata 573-0101, Japan
| | - Akira Ando
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata 573-0101, Japan
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38
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He Y, Zhang XY, Cui LY, Fan XS. Iodine-Initiated Domino Reaction of Hepta-1,2-dien-6-yn-4-ols and Brønsted Acid Promoted Cyclization of Hepta-1,2,6-trien-4-ols Leading to Functionalized Benzenes. Chem Asian J 2013; 8:717-22. [PMID: 23339080 DOI: 10.1002/asia.201201151] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 12/16/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Yan He
- School of Chemistry and Environmental Science, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Henan Normal University, 46 Jianshe Road, Xinxiang, Henan 453007, P. R. China
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39
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Egami H, Shimizu R, Sodeoka M. Oxytrifluoromethylation of multiple bonds using copper catalyst under mild conditions. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.07.134] [Citation(s) in RCA: 160] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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40
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Debien L, Quiclet-Sire B, Zard SS. A Convergent, Unified Approach to Functionalized Fluoro- and Trifluoromethyl Alkenes. Org Lett 2012; 14:5118-21. [DOI: 10.1021/ol3023903] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Laurent Debien
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Béatrice Quiclet-Sire
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Samir S. Zard
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Palaiseau Cedex, France
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