101
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Li L, Ye L, Ni SF, Li ZL, Chen S, Du YM, Li XH, Dang L, Liu XY. Phosphine-catalyzed remote α-C–H bond activation of alcohols or amines triggered by the radical trifluoromethylation of alkenes: reaction development and mechanistic insights. Org Chem Front 2017. [DOI: 10.1039/c7qo00500h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient radical protocol for concomitant functionalization of both alkenes and remote α-C–H bonds of alcohols or amines via 1,5(6,7)-HAT was realized in a highly controlled site-selective manner.
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Affiliation(s)
- Lei Li
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- P. R. China
| | - Liu Ye
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- P. R. China
- State Key Laboratory and Institute of Elemento-Organic Chemistry
| | - Shao-Fei Ni
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- P. R. China
| | - Zhong-Liang Li
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- P. R. China
| | - Su Chen
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- P. R. China
| | - Yi-Meng Du
- School of Chemical Biology and Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen
- China
| | - Xiao-Hua Li
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- P. R. China
| | - Li Dang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province
- Shantou University
- Guangdong 515063
- P. R. China
| | - Xin-Yuan Liu
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- P. R. China
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102
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Tomita R, Koike T, Akita M. Photoredox-catalyzed oxytrifluoromethylation of allenes: stereoselective synthesis of 2-trifluoromethylated allyl acetates. Chem Commun (Camb) 2017; 53:4681-4684. [DOI: 10.1039/c7cc01759f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel stereoselective synthesis of 2-CF3-allyl acetates by photocatalytic oxytrifluoromethylation of allenes has been developed.
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Affiliation(s)
- Ren Tomita
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Takashi Koike
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
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103
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Hu XQ, Han JB, Zhang CP. Cu-Mediated Trifluoromethylation of Aromatic α-Diazo Esters with the Yagupolskii-Umemoto Reagent. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601196] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Xiao-Qian Hu
- School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road 40003 Wuhan China
| | - Jia-Bin Han
- School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road 40003 Wuhan China
| | - Cheng-Pan Zhang
- School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road 40003 Wuhan China
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104
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Xiang Y, Li Y, Kuang Y, Wu J. Vicinal Difluoroalkylation and Aminosulfonylation of Alkynes under Photoinduced Conditions. Chemistry 2016; 23:1032-1035. [DOI: 10.1002/chem.201605336] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Yuanchao Xiang
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P. R. China
| | - Yuewen Li
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P. R. China
| | - Yunyan Kuang
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P. R. China
| | - Jie Wu
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P. R. China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
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105
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Pan C, Chen Y, Song S, Li L, Yu JT. Metal-Free Cascade Oxidative Decarbonylative Alkylation/Arylation of Alkynoates with Alphatic Aldehydes. J Org Chem 2016; 81:12065-12069. [PMID: 27934469 DOI: 10.1021/acs.joc.6b02451] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The oxidative difunctionalization of aryl alkynoates with alphatic aldehydes as a cheap and abundant alkyl radical source was developed, providing a variety of trisubstituted alkenes in moderate to good yields. In this reaction, radical decarbonylative alkylation of C-C triple bond, 1,4-aryl migration, and decarboxylation were involved under metal-free conditions.
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Affiliation(s)
- Changduo Pan
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology , Changzhou 213001, P. R. China.,School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University , Changzhou 213164, P. R. China
| | - Yu Chen
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology , Changzhou 213001, P. R. China
| | - Shuai Song
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology , Changzhou 213001, P. R. China
| | - Lei Li
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology , Changzhou 213001, P. R. China
| | - Jin-Tao Yu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University , Changzhou 213164, P. R. China
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106
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Gao P, Zhang W, Zhang Z. Copper-Catalyzed Oxidative ipso-Annulation of Activated Alkynes with Silanes: An Approach to 3-Silyl Azaspiro[4,5]trienones. Org Lett 2016; 18:5820-5823. [PMID: 27934505 DOI: 10.1021/acs.orglett.6b02781] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A novel strategy of silylation and dearomatization of activated alkynes with silanes to synthesize azaspiro[4,5]trienones is developed, which could be facilely achieved through a tandem difunctionalization of alkyne, dearomatization, and oxidation and provided a facile approach to produce useful 3-silyl azaspiro[4,5]trienones in an efficient manner.
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Affiliation(s)
- Pin Gao
- Department of Chemistry, School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University , Xi'an, China , 710049
| | - Wanwan Zhang
- Department of Chemistry, School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University , Xi'an, China , 710049
| | - Zhicheng Zhang
- Department of Chemistry, School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University , Xi'an, China , 710049
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107
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Giri C, Sahoo PK, Rissanen K, Mal P. Capturing Hydrophobic Trifluoroiodomethane in Water into an M
4
L
6
Cage. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chandan Giri
- School of Chemical Sciences National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar P. O. Bhimpur‐Padanpur, Via Jatni 752050 Odisha District Khurda India
- University of Jyvaskyla Department of Chemistry Nanoscience Center P. O. Box. 35 40014 University of Jyvaskyla Finland
| | - Prasit Kumar Sahoo
- School of Chemical Sciences National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar P. O. Bhimpur‐Padanpur, Via Jatni 752050 Odisha District Khurda India
| | - Kari Rissanen
- University of Jyvaskyla Department of Chemistry Nanoscience Center P. O. Box. 35 40014 University of Jyvaskyla Finland
| | - Prasenjit Mal
- School of Chemical Sciences National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar P. O. Bhimpur‐Padanpur, Via Jatni 752050 Odisha District Khurda India
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108
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Huang L, Ye L, Li XH, Li ZL, Lin JS, Liu XY. Stereoselective Radical Cyclization Cascades Triggered by Addition of Diverse Radicals to Alkynes To Construct 6(5)–6–5 Fused Rings. Org Lett 2016; 18:5284-5287. [DOI: 10.1021/acs.orglett.6b02599] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lin Huang
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Liu Ye
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Xiao-Hua Li
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Zhong-Liang Li
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Jin-Shun Lin
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
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109
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Koike T, Akita M. Fine Design of Photoredox Systems for Catalytic Fluoromethylation of Carbon-Carbon Multiple Bonds. Acc Chem Res 2016; 49:1937-45. [PMID: 27564676 DOI: 10.1021/acs.accounts.6b00268] [Citation(s) in RCA: 387] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Trifluoromethyl (CF3) and difluoromethyl (CF2H) groups are versatile structural motifs, especially in the fields of pharmaceuticals and agrochemicals. Thus, the development of new protocols for tri- and difluoromethylation of various skeletons has become a vital subject to be studied in the field of synthetic organic chemistry. For the past decades, a variety of fluoromethylating reagents have been developed. In particular, bench-stable and easy-to-use electrophilic fluoromethylating reagents such as the Umemoto, Yagupolskii-Umemoto, Togni, and Hu reagents serve as excellent fluoromethyl sources for ionic and carbenoid reactions. Importantly, the action of catalysis has become a promising strategy for developing new fluoromethylations. For the past several years, photoredox catalysis has emerged as a useful tool for radical reactions through visible-light-induced single-electron-transfer (SET) processes. Commonly used photocatalysts such as [Ru(bpy)3](2+) and fac-[Ir(ppy)3] (bpy = 2,2'-bipyridine; ppy = 2-pyridylphenyl) have potential as one-electron reductants strong enough to reduce those fluoromethylating reagents, resulting in facile generation of the corresponding fluoromethyl radicals. Therefore, if we can design proper reaction systems, efficient and selective radical fluoromethylation would proceed without any sacrificial redox agents, i.e., via a redox-neutral process under mild reaction conditions: irradiation with visible light, including sunlight, below room temperature. It should be noted that examples of catalytic fluoromethylation of compounds with carbon-carbon multiple bonds have been limited until recent years. In this Account, we will focus on our recent research on photoredox-catalyzed fluoromethylation of carbon-carbon multiple bonds. First, choices of the photocatalyst and the fluoromethylating reagent and the basic concept involving a redox-neutral oxidative quenching cycle are explained. Then photocatalytic trifluoromethylation of olefins is discussed mainly. Trifluoromethylative difunctionalization reactions, i.e., simultaneous introduction of the CF3 group and a different functional group across carbon-carbon double bonds, are in the middle of the discussion. Oxy-, amino-, and ketotrifluoromethylation allow us to synthesize various organofluorine compounds bearing C(sp(3))-CF3 bonds. In addition, the synthesis of valuable trifluoromethylated alkenes is also viable when the olefins have an appropriate leaving group or undergo deprotonation. The present reaction system features high functional group compatibility and high regioselectivity. Furthermore, future prospects, especially trifluoromethylative difunctionalization of alkynes and difluoromethylation of alkenes, are also discussed.
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Affiliation(s)
- Takashi Koike
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Munetaka Akita
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
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110
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Wang Q, Song H, Liu Y, Song H, Wang Q. Copper-Catalyzed Trifluoromethylation and Bicyclizations of 1,7-Enynes Leading to Fused Polycycles. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600500] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Qiang Wang
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 People's Republic of China
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 People's Republic of China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 People's Republic of China
| | - Haibin Song
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 People's Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Innovation Center of Chemical Science and Engineering; Tianjin 300071 People's Republic of China
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111
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Lin JS, Dong XY, Li TT, Jiang NC, Tan B, Liu XY. A Dual-Catalytic Strategy To Direct Asymmetric Radical Aminotrifluoromethylation of Alkenes. J Am Chem Soc 2016; 138:9357-60. [DOI: 10.1021/jacs.6b04077] [Citation(s) in RCA: 208] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jin-Shun Lin
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiao-Yang Dong
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Tao-Tao Li
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Na-Chuan Jiang
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Bin Tan
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
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112
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Weske S, Schoop R, Koszinowski K. The Role of Ate Complexes in the Copper-Mediated Trifluoromethylation of Alkynes. Chemistry 2016; 22:11310-6. [PMID: 27385188 DOI: 10.1002/chem.201601261] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Indexed: 01/30/2023]
Abstract
Trifluoromethylation reactions have recently received increased attention because of the beneficial effect of the trifluoromethyl group on the pharmacological properties of numerous substances. A common method to introduce the trifluoromethyl group employs the Ruppert-Prakash reagent, that is, Si(CH3 )3 CF3 , together with a copper(I) halide. We have applied this method to the trifluoromethylation of aromatic alkynes and used electrospray-ionization mass spectrometry to investigate the mechanism of these reactions in tetrahydrofuran, dichloromethane, and acetonitrile as well as with and without added 1,10-phenanthroline. In the absence of the alkyne component, the homoleptic ate complexes [Cu(CF3 )2 ](-) and [Cu(CF3 )4 ](-) were observed. In the presence of the alkynes RH, the heteroleptic complexes [Cu(CF3 )3 R](-) were detected as well. Upon gas-phase fragmentation, these key intermediates released the cross-coupling products R-CF3 with perfect selectivity. Apparently, the [Cu(CF3 )3 R](-) complexes did not originate from homoleptic cuprate anions, but from unobservable neutral precursors. The present results moreover point to the involvement of oxygen as the oxidizing agent.
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Affiliation(s)
- Sebastian Weske
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstraße 2, 37077, Göttingen, Germany
| | - Ramona Schoop
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstraße 2, 37077, Göttingen, Germany
| | - Konrad Koszinowski
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstraße 2, 37077, Göttingen, Germany.
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113
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Zhou Y, Zhang C, Yuan J, Yang Q, Xiao Q, Peng Y. Synthesis of 3-trifluoromethylindoles via Rh-catalyzed regioselective oxidative coupling of acetanilides with trifluoromethylated alkynes. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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114
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Yoshioka E, Kohtani S, Jichu T, Fukazawa T, Nagai T, Kawashima A, Takemoto Y, Miyabe H. Aqueous-Medium Carbon-Carbon Bond-Forming Radical Reactions Catalyzed by Excited Rhodamine B as a Metal-Free Organic Dye under Visible Light Irradiation. J Org Chem 2016; 81:7217-29. [PMID: 27314306 DOI: 10.1021/acs.joc.6b01102] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The utility of rhodamine B as a water-soluble organic photocatalyst was studied in the cascade radical addition-cyclization-trapping reactions under visible light irradiation. In the presence of (i-Pr)2NEt, the electron transfer from the excited rhodamine B to perfluoroalkyl iodides proceeded smoothly to promote the carbon-carbon bond-forming radical reactions in aqueous media. When i-C3F7I was employed as a radical precursor, the aqueous-medium radical reactions proceeded even in the absence of (i-Pr)2NEt. In these reactions, the direct electron transfer from the excited singlet state of rhodamine B would take place. Furthermore, the cleavage of the C-I bond in less reactive i-PrI could be achieved by the reductive electron transfer from the excited rhodamine B, which was confirmed by the fluorescence quenching of rhodamine B with the addition of i-PrI.
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Affiliation(s)
- Eito Yoshioka
- School of Pharmacy, Hyogo University of Health Sciences , Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Shigeru Kohtani
- School of Pharmacy, Hyogo University of Health Sciences , Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Takahisa Jichu
- School of Pharmacy, Hyogo University of Health Sciences , Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Takuya Fukazawa
- School of Pharmacy, Hyogo University of Health Sciences , Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Toyokazu Nagai
- School of Pharmacy, Hyogo University of Health Sciences , Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Akira Kawashima
- School of Pharmacy, Hyogo University of Health Sciences , Minatojima, Chuo-ku, Kobe, 650-8530, Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences, Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hideto Miyabe
- School of Pharmacy, Hyogo University of Health Sciences , Minatojima, Chuo-ku, Kobe, 650-8530, Japan
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115
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He L, Tsui GC. Fluoroform-Derived CuCF3 for Trifluoromethylation of Terminal and TMS-Protected Alkynes. Org Lett 2016; 18:2800-3. [DOI: 10.1021/acs.orglett.6b00999] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [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, China
| | - Gavin Chit Tsui
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
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116
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Xie H, Xu B. Synthesis of Fluorinated Homoallylic Compounds by Fluoroalkyl Radical Mediated Ring Opening of Methylenecyclopropanes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600380] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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117
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Domański S, Chaładaj W. A Broadly Applicable Method for Pd-Catalyzed Carboperfluoro-alkylation of Terminal and Internal Alkynes: A Convenient Route to Tri- and Tetrasubstituted Olefins. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00777] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sylwester Domański
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Wojciech Chaładaj
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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118
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Li T, Yu P, Lin JS, Zhi Y, Liu XY. Copper-Catalyzed Redox-Triggered Remote CH Functionalization: Highly Selective Formation of CCF3
and CO Bonds. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201500891] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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119
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Jacquet J, Blanchard S, Derat E, Desage-El Murr M, Fensterbank L. Redox-ligand sustains controlled generation of CF 3 radicals by well-defined copper complex. Chem Sci 2016; 7:2030-2036. [PMID: 29899928 PMCID: PMC5968567 DOI: 10.1039/c5sc03636d] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 11/27/2015] [Indexed: 01/17/2023] Open
Abstract
A well-defined copper complex bearing iminosemiquinone ligands performs single electron reduction of an electrophilic CF3+ source into CF˙3 radicals. This redox behavior is enabled by the ligand which shuttles through two different redox states (iminosemiquinone and iminobenzoquinone) while the copper center is preserved as a Cu(ii). This system was used in the trifluoromethylation of silyl enol ethers, heteroaromatics and in the hydrotrifluoromethylation of alkynes. This is the first example of cooperative redox catalysis for the controlled generation of CF˙3 radicals.
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Affiliation(s)
- Jérémy Jacquet
- Institut Parisien de Chimie Moléculaire , UMR CNRS 8232 , Sorbonne Universités UPMC Univ Paris 06 , 4 Place Jussieu, CC 229 , 75252 Paris Cedex 05 , France . ;
| | - Sébastien Blanchard
- Institut Parisien de Chimie Moléculaire , UMR CNRS 8232 , Sorbonne Universités UPMC Univ Paris 06 , 4 Place Jussieu, CC 229 , 75252 Paris Cedex 05 , France . ;
| | - Etienne Derat
- Institut Parisien de Chimie Moléculaire , UMR CNRS 8232 , Sorbonne Universités UPMC Univ Paris 06 , 4 Place Jussieu, CC 229 , 75252 Paris Cedex 05 , France . ;
| | - Marine Desage-El Murr
- Institut Parisien de Chimie Moléculaire , UMR CNRS 8232 , Sorbonne Universités UPMC Univ Paris 06 , 4 Place Jussieu, CC 229 , 75252 Paris Cedex 05 , France . ;
| | - Louis Fensterbank
- Institut Parisien de Chimie Moléculaire , UMR CNRS 8232 , Sorbonne Universités UPMC Univ Paris 06 , 4 Place Jussieu, CC 229 , 75252 Paris Cedex 05 , France . ;
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120
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Saidalimu I, Suzuki S, Tokunaga E, Shibata N. Successive C-C bond cleavage, fluorination, trifluoromethylthio- and pentafluorophenylthiolation under metal-free conditions to provide compounds with dual fluoro-functionalization. Chem Sci 2016; 7:2106-2110. [PMID: 29899937 PMCID: PMC5968529 DOI: 10.1039/c5sc04208a] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 12/07/2015] [Indexed: 11/22/2022] Open
Abstract
The selective C-C bond cleavage and simultaneous formation of two C-F bonds and one C-S bond in β-keto esters with nucleophilic fluorination reagents such as DAST under metal-free/catalyst-free conditions is disclosed. Double fluorination at two remote carbons with additional dialkylamino-sulfenylation provided unique fluorinated compounds in good to high yields. This method can be applied for the successive C-C bond cleavage/fluorination/trifluoromethylthiolation of β-keto esters using trifluoromethyl-DAST (CF3-DAST) providing different type of fluorinated and trifluoromethylthiolated compounds via a shunt pathway. Doubly fluoro-functionalized compounds obtained in these reactions are unique and difficult to synthesize by other methods.
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Affiliation(s)
- Ibrayim Saidalimu
- Department of Nanopharmaceutical Sciences , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan
| | - Shugo Suzuki
- Department of Frontier Materials , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan .
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan
- Department of Frontier Materials , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan .
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121
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Oxidative difunctionalization of alkynoates via cascade radical addition, aryl migration, and decarboxylation. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.12.092] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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122
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Dighe SU, Batra S. Visible Light-Induced Iodine-Catalyzed Transformation of Terminal Alkynes to Primary AmidesviaCC Bond Cleavage under Aqueous Conditions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500906] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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123
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Li Y, Xiang Y, Li Z, Wu J. Direct vicinal difunctionalization of alkynes through trifluoromethylation and aminosulfonylation via insertion of sulfur dioxide under catalyst-free conditions. Org Chem Front 2016. [DOI: 10.1039/c6qo00434b] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Direct vicinal difunctionalization of alkynes through a catalyst-free four-component reaction of Togni's reagent, alkynes, sulfur dioxide, and hydrazines at room temperature is developed, which generates (E)-3,3,3-trifluoroprop-1-ene-1-sulfonohydrazides in good yields.
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Affiliation(s)
- Yuewen Li
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Yuanchao Xiang
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Zhiming Li
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Jie Wu
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
- State Key Laboratory of Organometallic Chemistry
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124
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Koike T, Akita M. A versatile strategy for difunctionalization of carbon–carbon multiple bonds by photoredox catalysis. Org Chem Front 2016. [DOI: 10.1039/c6qo00139d] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoredox catalysis is a versatile strategy for difunctionalization of carbon–carbon multiple bonds.
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Affiliation(s)
- Takashi Koike
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
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125
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Duan Y, Li W, Xu P, Zhang M, Cheng Y, Zhu C. Visible-light-induced three-component 1,2-difluoroalkylarylation of styrenes with α-carbonyl difluoroalkyl bromides and indoles. Org Chem Front 2016. [DOI: 10.1039/c6qo00393a] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel visible light photoredox catalysis three-component 1,2-difluoroalkylarylation of styrenes was disclosed, and two new C–C bonds were generated in a single step through regioselective incorporation of a CF2 group and a variety of indoles to CC bonds.
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Affiliation(s)
- Yingqian Duan
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Weipeng Li
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Pan Xu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Muliang Zhang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Yixiang Cheng
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Chengjian Zhu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
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126
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Xiang Y, Kuang Y, Wu J. Generation of benzosultams via trifluoromethylation of 2-ethynylbenzenesulfonamide under visible light. Org Chem Front 2016. [DOI: 10.1039/c6qo00120c] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Under visible light irradiation, 2-ethynylbenzenesulfonamides react with Togni's reagent in the presence of a photocatalyst leading to 3-(2,2,2-trifluoroethylidene)-2,3-dihydrobenzo[d]isothiazole 1,1-dioxides in good yields. This transformation proceeds efficiently at room temperature through a photo-initiated trifluoromethylation.
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Affiliation(s)
- Yuanchao Xiang
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Yunyan Kuang
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Jie Wu
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
- State Key Laboratory of Organometallic Chemistry
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127
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Li B, Fan D, Yang C, Xia W. UV light-mediated difunctionalization of alkenes with CF3SO2Na: synthesis of trifluoromethyl phenanthrene and anthrone derivatives. Org Biomol Chem 2016; 14:5293-7. [DOI: 10.1039/c6ob00912c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A metal-free and cost-effective protocol for UV light-mediated difunctionalization of alkenes with CF3SO2Na was developed.
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Affiliation(s)
- Bing Li
- State Key Lab of Urban Water Resource and Environment
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- China
| | - Dan Fan
- State Key Lab of Urban Water Resource and Environment
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- China
| | - Chao Yang
- State Key Lab of Urban Water Resource and Environment
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- China
| | - Wujiong Xia
- State Key Lab of Urban Water Resource and Environment
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- China
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128
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Arai Y, Tomita R, Ando G, Koike T, Akita M. Oxydifluoromethylation of Alkenes by Photoredox Catalysis: Simple Synthesis of CF2H-Containing Alcohols. Chemistry 2015; 22:1262-5. [PMID: 26639021 PMCID: PMC4737308 DOI: 10.1002/chem.201504838] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Indexed: 01/15/2023]
Abstract
We have developed a novel and simple protocol for the direct incorporation of a difluoromethyl (CF2 H) group into alkenes by visible-light-driven photoredox catalysis. The use of fac-[Ir(ppy)3] (ppy=2-pyridylphenyl) photocatalyst and shelf-stable Hu's reagent, N-tosyl-S-difluoromethyl-S-phenylsulfoximine, as a CF2 H source is the key to success. The well-designed photoredox system achieves synthesis of not only β-CF2 H-substituted alcohols but also ethers and an ester from alkenes through solvolytic processes. The present method allows a single-step and regioselective formation of C(sp(3))-CF2 H and C(sp(3))-O bonds from C=C moiety in alkenes, such as hydroxydifluoromethylation, regardless of terminal or internal alkenes. Moreover, this methodology tolerates a variety of functional groups.
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Affiliation(s)
- Yusuke Arai
- Chemical Resources Laboratory, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Ren Tomita
- Chemical Resources Laboratory, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Gaku Ando
- 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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129
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Zhu ZZ, Chen K, Yu LZ, Tang XY, Shi M. Copper(I)-Catalyzed Intramolecular Trifluoromethylation of Methylenecyclopropanes. Org Lett 2015; 17:5994-7. [DOI: 10.1021/acs.orglett.5b02940] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zi-Zhong Zhu
- Key
Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China
| | - Kai Chen
- Key
Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China
| | - Liu-Zhu Yu
- Key
Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China
| | - Xiang-Ying Tang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Min Shi
- Key
Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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130
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He YT, Wang Q, Li LH, Liu XY, Xu PF, Liang YM. Palladium-Catalyzed Intermolecular Aryldifluoroalkylation of Alkynes. Org Lett 2015; 17:5188-91. [DOI: 10.1021/acs.orglett.5b02512] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yu-Tao He
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Qiang Wang
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Lian-Hua Li
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
- State Key Laboratory of Solid Lubrication,
Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000, P.R. China
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131
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Tomita R, Koike T, Akita M. Photoredox-Catalyzed Stereoselective Conversion of Alkynes into Tetrasubstituted Trifluoromethylated Alkenes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505550] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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132
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Tomita R, Koike T, Akita M. Photoredox‐Catalyzed Stereoselective Conversion of Alkynes into Tetrasubstituted Trifluoromethylated Alkenes. Angew Chem Int Ed Engl 2015; 54:12923-7. [DOI: 10.1002/anie.201505550] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/08/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Ren Tomita
- 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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133
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Li Z, García-Domínguez A, Nevado C. Pd-Catalyzed Stereoselective Carboperfluoroalkylation of Alkynes. J Am Chem Soc 2015; 137:11610-3. [DOI: 10.1021/jacs.5b07432] [Citation(s) in RCA: 153] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Zhaodong Li
- Department of Chemistry, University of Zurich, Winterthurerstrasse
190, CH 8057 Zurich, Switzerland
| | - Andrés García-Domínguez
- Department of Chemistry, University of Zurich, Winterthurerstrasse
190, CH 8057 Zurich, Switzerland
| | - Cristina Nevado
- Department of Chemistry, University of Zurich, Winterthurerstrasse
190, CH 8057 Zurich, Switzerland
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134
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Chen Q, Zhou J, Wang Y, Wang C, Liu X, Xu Z, Lin L, Wang R. Transition-Metal-Free Dehydrosilylative Difluoroamidation of Tetrahydroisoquinolines under Mild Conditions. Org Lett 2015; 17:4212-5. [DOI: 10.1021/acs.orglett.5b01997] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Qiao Chen
- Key Laboratory of Preclinical
Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jiawei Zhou
- Key Laboratory of Preclinical
Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yanan Wang
- Key Laboratory of Preclinical
Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Chao Wang
- Key Laboratory of Preclinical
Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xihong Liu
- Key Laboratory of Preclinical
Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Zhaoqing Xu
- Key Laboratory of Preclinical
Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Li Lin
- Key Laboratory of Preclinical
Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Rui Wang
- Key Laboratory of Preclinical
Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
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135
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He YT, Wang Q, Zhao J, Liu XY, Xu PF, Liang YM. The copper-catalyzed synthesis of β-trifluoromethylated acrylonitriles and trifluoromethyl-substituted 2H-azirines. Chem Commun (Camb) 2015; 51:13209-12. [DOI: 10.1039/c5cc05066a] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The direct assembly of acrylonitriles and valuable 2H-azirines from readily available starting materials is described.
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Affiliation(s)
- Yu-Tao He
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Qiang Wang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Jiahui Zhao
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
- State Key Laboratory of Solid Lubrication
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