51
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Miller SA, van Beek B, Hamlin TA, Bickelhaupt FM, Leadbeater NE. A methodology for the photocatalyzed radical trifluoromethylation of indoles: A combined experimental and computational study. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.08.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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52
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Cai S, Tian Y, Zhang J, Liu Z, Lu M, Weng W, Huang M. Carbotrifluoromethylation of Allylic Alcohols
via
1,2‐Aryl Migration Promoted by Visible‐Light‐Induced Photoredox Catalysis. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800726] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shunyou Cai
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry, Chemical Engineering and EnvironmentMinnan Normal University Zhangzhou 363000 People's Republic of China
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate SchoolPeking University Shenzhen 518055 People's Republic of China
| | - Yu Tian
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry, Chemical Engineering and EnvironmentMinnan Normal University Zhangzhou 363000 People's Republic of China
| | - Jinwang Zhang
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry, Chemical Engineering and EnvironmentMinnan Normal University Zhangzhou 363000 People's Republic of China
| | - Zhiji Liu
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry, Chemical Engineering and EnvironmentMinnan Normal University Zhangzhou 363000 People's Republic of China
| | - Maojian Lu
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry, Chemical Engineering and EnvironmentMinnan Normal University Zhangzhou 363000 People's Republic of China
| | - Wen Weng
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry, Chemical Engineering and EnvironmentMinnan Normal University Zhangzhou 363000 People's Republic of China
| | - Mingqiang Huang
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry, Chemical Engineering and EnvironmentMinnan Normal University Zhangzhou 363000 People's Republic of China
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53
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Wu LH, Cheng JK, Shen L, Shen ZL, Loh TP. Visible Light-Mediated Trifluoromethylation of Fluorinated Alkenes via C−F Bond Cleavage. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800740] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Liu-Hai Wu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371, Singapore
| | - Jun-Kee Cheng
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371, Singapore
| | - Liang Shen
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371, Singapore
| | - Zhi-Liang Shen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials; Nanjing Tech University; Nanjing 210009 People's Republic of China
| | - Teck-Peng Loh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials; Nanjing Tech University; Nanjing 210009 People's Republic of China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371, Singapore
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54
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Wang L, Zhang Y, Li F, Hao X, Zhang HY, Zhao J. Direct C−H Trifluoromethylation of Quinoxalin-2(1H
)-ones under Transition-Metal-Free Conditions. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800863] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Liping Wang
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
- National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization; Hebei University of Technology; Tianjin 300130 People's Republic of China
| | - Fanfan Li
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
| | - Xinyu Hao
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
| | - Hong-Yu Zhang
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin 300130 People's Republic of China
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55
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Noto N, Tanaka Y, Koike T, Akita M. Strongly Reducing (Diarylamino)anthracene Catalyst for Metal-Free Visible-Light Photocatalytic Fluoroalkylation. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02885] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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56
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Jia J, Ho YA, Bülow RF, Rueping M. Brønsted Base Assisted Photoredox Catalysis: Proton Coupled Electron Transfer for Remote C−C Bond Formation via Amidyl Radicals. Chemistry 2018; 24:14054-14058. [DOI: 10.1002/chem.201802907] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Indexed: 01/28/2023]
Affiliation(s)
- Jiaqi Jia
- Institute of Organic Chemistry, RWTH Aachen Landoltweg 1 52074 Aachen Germany
| | - Yee Ann Ho
- Institute of Organic Chemistry, RWTH Aachen Landoltweg 1 52074 Aachen Germany
| | - Raoul F. Bülow
- Institute of Organic Chemistry, RWTH Aachen Landoltweg 1 52074 Aachen Germany
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen Landoltweg 1 52074 Aachen Germany
- King Abdullah University of Science and Technology (KAUST)KAUST Catalysis Center (KCC) Thuwal 23955-6900 Saudi Arabia
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57
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Wang CS, Dixneuf PH, Soulé JF. Photoredox Catalysis for Building C-C Bonds from C(sp 2)-H Bonds. Chem Rev 2018; 118:7532-7585. [PMID: 30011194 DOI: 10.1021/acs.chemrev.8b00077] [Citation(s) in RCA: 505] [Impact Index Per Article: 84.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Transition metal-catalyzed C-H bond functionalizations have been the focus of intensive research over the last decades for the formation of C-C bonds from unfunctionalized arenes, heteroarenes, alkenes. These direct transformations provide new approaches in synthesis with high atom- and step-economy compared to the traditional catalytic cross-coupling reactions. However, such methods still suffer from several limitations including functional group tolerance and the lack of regioselectivity. In addition, they often require harsh reaction conditions and some of them need the use of strong oxidant, in a stoichiometric amount, avoiding these processes to be truly eco-friendly. The use of photoredox catalysis has contributed to a significant expansion of the scope of C(sp2)-H bond functionalizations which include the direct arylations, (perfluoro)alkylations, acylations, and even cyanations. Most of these transformations involve the photochemical induced generation of a radical followed by its regioselective addition to arenes, heteroarenes, or alkenes, leading to the building of a new C(sp2)-C bond. The use of photoredox catalysis plays crucial roles in these reactions promoting electron transfer, enabling the generation of radical species and single electron either oxidation or reduction. Such reactions operating at room temperature allow the building of C-C bonds with high chemo-, regio-, or stereoselectivity. This review surveys the formation of C(sp2)-C bonds initiated by photoredox catalysis which involves a C(sp2)-H bond functionalization step, describes the advantages compared to traditional C(sp2)-H bond functionalizations, and presents mechanistic insights into the role played by the photoredox catalysts.
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58
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Liao YY, Deng JC, Ke YP, Zhong XL, Xu L, Tang RY, Zheng W. Isothiocyanation of amines using the Langlois reagent. Chem Commun (Camb) 2018; 53:6073-6076. [PMID: 28480912 DOI: 10.1039/c7cc02373a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The Langlois reagent was found to be effective for the isothiocyanation of primary amines in the presence of copper iodide and diethyl phosphonate.
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Affiliation(s)
- Yan-Yan Liao
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
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59
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60
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Chen J, Huang W, Li Y, Cheng X. Visible-Light-Induced Difluoropropargylation Reaction with Benzothiazoline as a Reductant. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800066] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jingzhi Chen
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for Experimental Chemistry Education; Nanjing University; Nanjing 210023 People's Republic of China
| | - Wenhao Huang
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for Experimental Chemistry Education; Nanjing University; Nanjing 210023 People's Republic of China
| | - Ying Li
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for Experimental Chemistry Education; Nanjing University; Nanjing 210023 People's Republic of China
| | - Xu Cheng
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for Experimental Chemistry Education; Nanjing University; Nanjing 210023 People's Republic of China
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy; Nanjing University of Chinese Medicine; Nanjing People's Republic of China
- State Key Laboratory of Elemento-organic Chemistry; Nankai University; Tianjin People's Republic of China
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61
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Huang W, Chen J, Hong D, Chen W, Cheng X, Tian Y, Li G. Hydrophosphonodifluoromethylation of Alkenes via Thiyl-Radical/Photoredox Catalysis. J Org Chem 2018; 83:578-587. [DOI: 10.1021/acs.joc.7b02354] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | | | | | | | - Xu Cheng
- State
Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, China
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62
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Lu M, Liu Z, Zhang J, Tian Y, Qin H, Huang M, Hu S, Cai S. Synthesis of oxindoles through trifluoromethylation of N-aryl acrylamides by photoredox catalysis. Org Biomol Chem 2018; 16:6564-6568. [DOI: 10.1039/c8ob01922c] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photocatalytic trifluoromethylation of activated alkenes has been established to access CF3-containing oxindoles under strong oxidant and transition metal free conditions.
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Affiliation(s)
- Maojian Lu
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province
- School of Chemistry
- Chemical Engineering and Environment
- Minnan Normal University
- Zhangzhou
| | - Zhiji Liu
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province
- School of Chemistry
- Chemical Engineering and Environment
- Minnan Normal University
- Zhangzhou
| | - Jinwang Zhang
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province
- School of Chemistry
- Chemical Engineering and Environment
- Minnan Normal University
- Zhangzhou
| | - Yu Tian
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province
- School of Chemistry
- Chemical Engineering and Environment
- Minnan Normal University
- Zhangzhou
| | - Honggui Qin
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province
- School of Chemistry
- Chemical Engineering and Environment
- Minnan Normal University
- Zhangzhou
| | - Mingqiang Huang
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province
- School of Chemistry
- Chemical Engineering and Environment
- Minnan Normal University
- Zhangzhou
| | - Shirong Hu
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province
- School of Chemistry
- Chemical Engineering and Environment
- Minnan Normal University
- Zhangzhou
| | - Shunyou Cai
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province
- School of Chemistry
- Chemical Engineering and Environment
- Minnan Normal University
- Zhangzhou
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63
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Wu QY, Ao GZ, Liu F. Redox-neutral tri-/difluoromethylation of para-quinone methides with sodium sulfinates. Org Chem Front 2018. [DOI: 10.1039/c8qo00428e] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A redox-neutral, mild, and simple protocol is developed for the synthesis of functionalized phenols from para-quinone methides upon visible-light irradiation.
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Affiliation(s)
- Qing-Yan Wu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Gui-Zhen Ao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
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64
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65
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Liu X, Wu Z, Zhang Z, Liu P, Sun P. Synthesis of trifluoroalkyl or difluoroalkyl phenanthridine derivatives via cascade reaction using an intramolecular cyano group as a radical acceptor under photoredox catalysis. Org Biomol Chem 2018; 16:414-423. [DOI: 10.1039/c7ob02804k] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
In the presence of Ru(phen)3Cl2 or fac-Ir(ppy)3 under visible-light irradiation, the addition of fluorinated radicals to N-arylacrylamides followed by an intramolecular cyano group insertion cascade cyclization process produced the target compounds in moderate to good yields.
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Affiliation(s)
- Xu Liu
- College of Chemistry and Materials Science
- Nanjing Normal University; Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control; Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing 210023
- China
| | - Zhongjie Wu
- College of Chemistry and Materials Science
- Nanjing Normal University; Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control; Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing 210023
- China
| | - Zeguo Zhang
- College of Chemistry and Materials Science
- Nanjing Normal University; Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control; Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing 210023
- China
| | - Ping Liu
- College of Chemistry and Materials Science
- Nanjing Normal University; Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control; Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing 210023
- China
| | - Peipei Sun
- College of Chemistry and Materials Science
- Nanjing Normal University; Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control; Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing 210023
- China
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66
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Guyon H, Chachignon H, Cahard D. CF 3SO 2X (X = Na, Cl) as reagents for trifluoromethylation, trifluoromethylsulfenyl-, -sulfinyl- and -sulfonylation. Part 1: Use of CF 3SO 2Na. Beilstein J Org Chem 2017; 13:2764-2799. [PMID: 30018665 PMCID: PMC5753172 DOI: 10.3762/bjoc.13.272] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 11/15/2017] [Indexed: 11/23/2022] Open
Abstract
Sodium trifluoromethanesulfinate, CF3SO2Na, and trifluoromethanesulfonyl chloride, CF3SO2Cl, are two popular reagents that are widely used for the direct trifluoromethylation of a large range of substrates. Further, these two reagents are employed for the direct trifluoromethylsulfenylation and trifluoromethylsulfinylation, the introduction of the SCF3 and the S(O)CF3 group, respectively. In addition to the aforementioned reactions, the versatility of these two reagents is presented in other reactions such as sulfonylation and chlorination. This first part is dedicated to sodium trifluoromethanesulfinate.
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Affiliation(s)
- Hélène Guyon
- UMR 6014 CNRS COBRA, Normandie Université, 1 rue Tesnière, 76821 Mont Saint Aignan, France
| | - Hélène Chachignon
- UMR 6014 CNRS COBRA, Normandie Université, 1 rue Tesnière, 76821 Mont Saint Aignan, France
| | - Dominique Cahard
- UMR 6014 CNRS COBRA, Normandie Université, 1 rue Tesnière, 76821 Mont Saint Aignan, France
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67
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Cheng M, Zhang B, Cui W, Gross ML. Laser-Initiated Radical Trifluoromethylation of Peptides and Proteins: Application to Mass-Spectrometry-Based Protein Footprinting. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706697] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ming Cheng
- Department of Chemistry; Washington University in St. Louis; One Brookings Drive Saint Louis MO 63130 USA
| | - Bojie Zhang
- Department of Chemistry; Washington University in St. Louis; One Brookings Drive Saint Louis MO 63130 USA
| | - Weidong Cui
- Department of Chemistry; Washington University in St. Louis; One Brookings Drive Saint Louis MO 63130 USA
| | - Michael L. Gross
- Department of Chemistry; Washington University in St. Louis; One Brookings Drive Saint Louis MO 63130 USA
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68
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Cheng M, Zhang B, Cui W, Gross ML. Laser-Initiated Radical Trifluoromethylation of Peptides and Proteins: Application to Mass-Spectrometry-Based Protein Footprinting. Angew Chem Int Ed Engl 2017; 56:14007-14010. [PMID: 28901679 DOI: 10.1002/anie.201706697] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/14/2017] [Indexed: 11/10/2022]
Abstract
Described is a novel, laser-initiated radical trifluoromethylation for protein footprinting and its broad residue coverage. . CF3 reacts with 18 of the 20 common amino acids, including Gly, Ala, Ser, Thr, Asp, and Glu, which are relatively silent with regard to . OH. This new approach to footprinting is a bridge between trifluoromethylation in materials and medicinal chemistry and structural biology and biotechnology. Its application to a membrane protein and to myoglobin show that the approach is sensitive to protein conformational change and solvent accessibility.
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Affiliation(s)
- Ming Cheng
- Department of Chemistry, Washington University in St. Louis, One Brookings Drive, Saint Louis, MO, 63130, USA
| | - Bojie Zhang
- Department of Chemistry, Washington University in St. Louis, One Brookings Drive, Saint Louis, MO, 63130, USA
| | - Weidong Cui
- Department of Chemistry, Washington University in St. Louis, One Brookings Drive, Saint Louis, MO, 63130, USA
| | - Michael L Gross
- Department of Chemistry, Washington University in St. Louis, One Brookings Drive, Saint Louis, MO, 63130, USA
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69
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Jana S, Verma A, Kadu R, Kumar S. Visible-light-induced oxidant and metal-free dehydrogenative cascade trifluoromethylation and oxidation of 1,6-enynes with water. Chem Sci 2017; 8:6633-6644. [PMID: 28989690 PMCID: PMC5625288 DOI: 10.1039/c7sc02556d] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/08/2017] [Indexed: 12/30/2022] Open
Abstract
Generally, oxy-trifluoromethylation in olefins is achieved using oxidants and transition metal catalysts. However, labile olefins remain unexplored due to their incompatibility with harsh reaction conditions. Here, unprecedented light-induced oxidant and metal-free tandem radical cyclization-trifluoromethylation and dehydrogenative oxygenation of 1,6-enynes have been achieved using a photoredox catalyst, CF3SO2Na, and phenanthrene-9,10-dione (PQ), Langlois' reagent (CF3SO2Na) and water as the oxygen source. This benign protocol allows for access to various CF3-containing C3-aryloyl/acylated benzofurans, benzothiophenes, and indoles. Moreover, the oxidized undesired products, which are inherently formed by the cleavage of the vinylic carbon and heteroatom bond, have been circumvented under oxidant free conditions. The mechanistic investigations by UV-visible and ESR spectroscopy, electrochemical studies, isotope labelling and density functional theory (DFT) suggest that light induced PQ produced a CF3 radical from CF3SO2Na. The generated CF3 radical adds to the alkene, followed by cyclization, to provide a vinylic radical that transfers an electron to PQ and generates a vinylic cation. Alternatively, electron transfer may occur from the CF3-added alkene moiety, forming a carbocation, which would undergo cationic cyclization to generate a vinylic carbocation. The subsequent addition of water to the vinylic cation, followed by the elimination of hydrogen gas, led to the formation of trifluoromethylated C3-aryloyl/acylated heterocycles.
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Affiliation(s)
- Sadhan Jana
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Ajay Verma
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Rahul Kadu
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Sangit Kumar
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
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70
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Li J, Zhang X, Xiang H, Tong L, Feng F, Xie H, Ding J, Yang C. C–H Trifluoromethylation of 2-Substituted/Unsubstituted Aminonaphthoquinones at Room Temperature with Bench-Stable (CF3SO2)2Zn: Synthesis and Antiproliferative Evaluation. J Org Chem 2017; 82:6795-6800. [DOI: 10.1021/acs.joc.7b00940] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jing Li
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
- University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China
| | - Xiaofei Zhang
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Haoyue Xiang
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Linjiang Tong
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Fang Feng
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Hua Xie
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Jian Ding
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Chunhao Yang
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
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71
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Sumino S, Uno M, Fukuyama T, Ryu I, Matsuura M, Yamamoto A, Kishikawa Y. Photoredox-Catalyzed Hydrodifluoroalkylation of Alkenes Using Difluorohaloalkyl Compounds and a Hantzsch Ester. J Org Chem 2017; 82:5469-5474. [DOI: 10.1021/acs.joc.7b00609] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Shuhei Sumino
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai,
Osaka 599-8531, Japan
| | - Misae Uno
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai,
Osaka 599-8531, Japan
| | - Takahide Fukuyama
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai,
Osaka 599-8531, Japan
| | - Ilhyong Ryu
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai,
Osaka 599-8531, Japan
- Department
of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
| | - Makoto Matsuura
- Daikin Industries, Ltd., 1-1
Nishi-Hitotsuya, Settsu, Osaka 566-8585, Japan
| | - Akinori Yamamoto
- Daikin Industries, Ltd., 1-1
Nishi-Hitotsuya, Settsu, Osaka 566-8585, Japan
| | - Yosuke Kishikawa
- Daikin Industries, Ltd., 1-1
Nishi-Hitotsuya, Settsu, Osaka 566-8585, Japan
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72
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Qin HT, Xu X, Liu F. Aerobic Oxidation of Alkynes to 1,2-Diketones by Organic Photoredox Catalysis. ChemCatChem 2017. [DOI: 10.1002/cctc.201700061] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hai-Tao Qin
- Jiangsu Key Laboratory of Translational Research and; Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry; College of Pharmaceutical Sciences; Soochow University; 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xiao Xu
- Jiangsu Key Laboratory of Translational Research and; Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry; College of Pharmaceutical Sciences; Soochow University; 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Feng Liu
- Jiangsu Key Laboratory of Translational Research and; Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry; College of Pharmaceutical Sciences; Soochow University; 199 Ren-Ai Road Suzhou Jiangsu 215123 China
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73
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Kamijo S, Kamijo K, Murafuji T. Synthesis of Alkylated Pyrimidines via Photoinduced Coupling Using Benzophenone as a Mediator. J Org Chem 2017; 82:2664-2671. [PMID: 28194979 DOI: 10.1021/acs.joc.6b03058] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of alkylated pyrimidines was achieved via benzophenone-mediated photoinduced coupling between saturated heterocycles and sulfonylpyrimidines. The pyrimidine ring was selectively introduced at the nonacidic C(sp3)-H bond proximal to heteroatoms including oxygen, nitrogen, and sulfur. This is a coupling reaction mediated solely by photoexcited benzophenone, an organic molecule, without the aid of any metallic catalysts or reagents.
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Affiliation(s)
- Shin Kamijo
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University , Yamaguchi 753-8512, Japan
| | - Kaori Kamijo
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University , Yamaguchi 753-8512, Japan
| | - Toshihiro Murafuji
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University , Yamaguchi 753-8512, Japan
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74
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Affiliation(s)
- Norbert Hoffmann
- CNRS Université de Reims Champagne-Ardenne; ICMR; Université de Reims Champagne-Ardenne; B.P. 1039 51687 Reims France
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75
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Xu X, Liu F. Transition-metal-free radical tri-/difluoromethylation of N,N-dialkylhydrazones with sodium sulfinates. Org Chem Front 2017. [DOI: 10.1039/c7qo00635g] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An operationally simple and scalable protocol has been developed for radical tri-/difluoromethylation of N,N-dialkylhydrazones under transition-metal-free conditions.
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Affiliation(s)
- Xiao Xu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
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76
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Corsico S, Fagnoni M, Ravelli D. Sunlight decatungstate photoinduced trifluoromethylations of (hetero)aromatics and electron-poor olefins. Photochem Photobiol Sci 2017; 16:1375-1380. [DOI: 10.1039/c7pp00179g] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tetrabutylammonium decatungstate has been exploited as a photoredox catalyst for the trifluoromethylation of (hetero)aromatics and electron-poor olefins.
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Affiliation(s)
- Sara Corsico
- PhotoGreen Lab
- Department of Chemistry
- University of Pavia
- 27100 Pavia
- Italy
| | - Maurizio Fagnoni
- PhotoGreen Lab
- Department of Chemistry
- University of Pavia
- 27100 Pavia
- Italy
| | - Davide Ravelli
- PhotoGreen Lab
- Department of Chemistry
- University of Pavia
- 27100 Pavia
- Italy
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77
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Fang J, Wang ZK, Wu SW, Shen WG, Ao GZ, Liu F. Photoredox-catalysed chloro-, bromo- and trifluoromethylthio-trifluoromethylation of unactivated alkenes with sodium triflinate. Chem Commun (Camb) 2017. [DOI: 10.1039/c7cc01903c] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A convenient and practical protocol is developed for radical vicinal difunctionalization of unactivated alkenes under transition-metal-free conditions.
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Affiliation(s)
- Jing Fang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Zhong-Kui Wang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Shu-Wei Wu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Wei-Guo Shen
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Gui-Zhen Ao
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
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78
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Tang Y, Yu Q, Ma S. Efficient trifluoromethylation via the cyclopropanation of allenes and subsequent C–C bond cleavage. Org Chem Front 2017. [DOI: 10.1039/c7qo00419b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Trifluoromethyl has been efficiently incorporated into organic skeletons via allene cyclization and C–C bond cleavage.
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Affiliation(s)
- Yang Tang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
| | - Qiong Yu
- Department of Chemistry
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Shengming Ma
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
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79
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Bu MJ, Lu GP, Cai C. Transition-metal-free electrophilic trifluoromethylthiolation with sodium trifluoromethanesulfinate at room temperature. Org Chem Front 2017. [DOI: 10.1039/c6qo00622a] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A transition-metal-free direct trifluoromethylthiolation of C(sp2)–H bonds could be achieved with commercially available CF3SO2Na under room temperature.
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Affiliation(s)
- Mei-jie Bu
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing
- P. R. China
| | - Guo-ping Lu
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing
- P. R. China
| | - Chun Cai
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing
- P. R. China
- Key Laboratory of Organofluorine Chemistry
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80
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Fang J, Shen WG, Ao GZ, Liu F. Transition-metal-free radical fluoroalkylation of isocyanides for the synthesis of tri-/di-/monofluoromethylated phenanthridines. Org Chem Front 2017. [DOI: 10.1039/c7qo00473g] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A convenient and scalable protocol is developed for the radical fluoroalkylation of 2-isocyanobiphenyls under transition-metal-free conditions.
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Affiliation(s)
- Jing Fang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Wei-Guo Shen
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Gui-Zhen Ao
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
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81
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Kirij NV, Filatov AA, Khrapach GY, Yagupolskii YL. The first nucleophilic C–H perfluoroalkylation of aromatic compounds via (arene)tricarbonylchromium complexes. Chem Commun (Camb) 2017; 53:2146-2149. [DOI: 10.1039/c6cc09905j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complexed and reversibly activated arenes selectively react with a perfluoroalkyl anion under mild conditions, forming cyclohexadienyl adducts that readily undergo oxidation to perfluoroalkyl arenes.
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Affiliation(s)
- Natalia V. Kirij
- Institute of Organic Chemistry
- National Academy of Sciences of Ukraine
- Kiev
- Ukraine
| | - Andrey A. Filatov
- Institute of Organic Chemistry
- National Academy of Sciences of Ukraine
- Kiev
- Ukraine
| | - Gleb Yu. Khrapach
- Institute of Organic Chemistry
- National Academy of Sciences of Ukraine
- Kiev
- Ukraine
| | - Yurii L. Yagupolskii
- Institute of Organic Chemistry
- National Academy of Sciences of Ukraine
- Kiev
- Ukraine
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82
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Li C, Suzuki K, Yamaguchi K, Mizuno N. Phosphovanadomolybdic acid catalyzed direct C–H trifluoromethylation of (hetero)arenes using NaSO2CF3 as the CF3 source and O2 as the terminal oxidant. NEW J CHEM 2017. [DOI: 10.1039/c6nj03654f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In the presence of phosphovanadomolybdic acids, a direct C–H trifluoromethylation of (hetero)arenes efficiently proceeded by utilizing NaSO2CF3 as the CF3 source and O2 as the terminal oxidant.
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Affiliation(s)
- Chifeng Li
- Department of Applied Chemistry
- School of Engineering
- The University of Tokyo
- Japan
| | - Kosuke Suzuki
- Department of Applied Chemistry
- School of Engineering
- The University of Tokyo
- Japan
| | - Kazuya Yamaguchi
- Department of Applied Chemistry
- School of Engineering
- The University of Tokyo
- Japan
| | - Noritaka Mizuno
- Department of Applied Chemistry
- School of Engineering
- The University of Tokyo
- Japan
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83
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Qin HT, Wu SW, Liu JL, Liu F. Photoredox-catalysed redox-neutral trifluoromethylation of vinyl azides for the synthesis of α-trifluoromethylated ketones. Chem Commun (Camb) 2017; 53:1696-1699. [DOI: 10.1039/c6cc10035j] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A redox-neutral, mild, and simple protocol is developed for the synthesis of α-trifluoromethylated ketones from vinyl azides upon visible-light irradiation.
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Affiliation(s)
- Hai-Tao Qin
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Shu-Wei Wu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Jia-Li Liu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
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84
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Mizuno K, Nishiyama Y, Ogaki T, Terao K, Ikeda H, Kakiuchi K. Utilization of microflow reactors to carry out synthetically useful organic photochemical reactions. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2016. [DOI: 10.1016/j.jphotochemrev.2016.10.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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85
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Straathof NJW, Cramer SE, Hessel V, Noël T. Practical Photocatalytic Trifluoromethylation and Hydrotrifluoromethylation of Styrenes in Batch and Flow. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608297] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Natan J. W. Straathof
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry & Process Technology; Eindhoven University of Technology; Den Dolech 2 5612 AZ Eindhoven The Netherlands
| | - Sten E. Cramer
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry & Process Technology; Eindhoven University of Technology; Den Dolech 2 5612 AZ Eindhoven The Netherlands
| | - Volker Hessel
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry & Process Technology; Eindhoven University of Technology; Den Dolech 2 5612 AZ Eindhoven The Netherlands
| | - Timothy Noël
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry & Process Technology; Eindhoven University of Technology; Den Dolech 2 5612 AZ Eindhoven The Netherlands
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86
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Straathof NJW, Cramer SE, Hessel V, Noël T. Practical Photocatalytic Trifluoromethylation and Hydrotrifluoromethylation of Styrenes in Batch and Flow. Angew Chem Int Ed Engl 2016; 55:15549-15553. [DOI: 10.1002/anie.201608297] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 10/25/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Natan J. W. Straathof
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry & Process Technology; Eindhoven University of Technology; Den Dolech 2 5612 AZ Eindhoven The Netherlands
| | - Sten E. Cramer
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry & Process Technology; Eindhoven University of Technology; Den Dolech 2 5612 AZ Eindhoven The Netherlands
| | - Volker Hessel
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry & Process Technology; Eindhoven University of Technology; Den Dolech 2 5612 AZ Eindhoven The Netherlands
| | - Timothy Noël
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry & Process Technology; Eindhoven University of Technology; Den Dolech 2 5612 AZ Eindhoven The Netherlands
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87
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Fu H, Wang SS, Li YM. Copper-Mediated Oxidative Radical Addition/Cyclization Cascade: Synthesis of Trifluoromethylated and Sulfonated Quinoline-2,4(1H,3H)-diones. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600693] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Hong Fu
- Faculty of Life Science and Technology; Kunming University of Science and Technology; Kunming 650500 People's Republic of China
| | - Shi-Sheng Wang
- Faculty of Life Science and Technology; Kunming University of Science and Technology; Kunming 650500 People's Republic of China
| | - Ya-Min Li
- Faculty of Life Science and Technology; Kunming University of Science and Technology; Kunming 650500 People's Republic of China
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88
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Kamijo S, Takao G, Kamijo K, Tsuno T, Ishiguro K, Murafuji T. Alkylation of Nonacidic C(sp3)–H Bonds by Photoinduced Catalytic Michael-Type Radical Addition. Org Lett 2016; 18:4912-4915. [DOI: 10.1021/acs.orglett.6b02391] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shin Kamijo
- Graduate School of Sciences and Technology for Innovation and ‡Department of
Biology and Chemistry, Yamaguchi University, Yamaguchi 753-8512, Japan
| | - Go Takao
- Graduate School of Sciences and Technology for Innovation and ‡Department of
Biology and Chemistry, Yamaguchi University, Yamaguchi 753-8512, Japan
| | - Kaori Kamijo
- Graduate School of Sciences and Technology for Innovation and ‡Department of
Biology and Chemistry, Yamaguchi University, Yamaguchi 753-8512, Japan
| | - Teruo Tsuno
- Graduate School of Sciences and Technology for Innovation and ‡Department of
Biology and Chemistry, Yamaguchi University, Yamaguchi 753-8512, Japan
| | - Katsuya Ishiguro
- Graduate School of Sciences and Technology for Innovation and ‡Department of
Biology and Chemistry, Yamaguchi University, Yamaguchi 753-8512, Japan
| | - Toshihiro Murafuji
- Graduate School of Sciences and Technology for Innovation and ‡Department of
Biology and Chemistry, Yamaguchi University, Yamaguchi 753-8512, Japan
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89
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Fava E, Nakajima M, Nguyen ALP, Rueping M. Photoredox-Catalyzed Ketyl-Olefin Coupling for the Synthesis of Substituted Chromanols. J Org Chem 2016; 81:6959-64. [PMID: 27442851 PMCID: PMC5029965 DOI: 10.1021/acs.joc.6b01006] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
![]()
A visible
light photoredox-catalyzed aldehyde olefin cyclization
is reported. The method represents a formal hydroacylation of alkenes
and alkynes and provides chromanol derivatives in good yields. The
protocol takes advantage of the double role played by trialkylamines
(NR3) which act as (i) electron donors for reducing the
catalyst and (ii) proton donors to activate the substrate via a proton-coupled
electron transfer.
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Affiliation(s)
- Eleonora Fava
- RWTH Aachen University , Institute of Organic Chemistry, Landoltweg 1, 52074, Aachen, Germany.,King Abdullah University of Science and Technology (KAUST) , KAUST Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
| | - Masaki Nakajima
- RWTH Aachen University , Institute of Organic Chemistry, Landoltweg 1, 52074, Aachen, Germany
| | - Anh L P Nguyen
- RWTH Aachen University , Institute of Organic Chemistry, Landoltweg 1, 52074, Aachen, Germany
| | - Magnus Rueping
- RWTH Aachen University , Institute of Organic Chemistry, Landoltweg 1, 52074, Aachen, Germany.,King Abdullah University of Science and Technology (KAUST) , KAUST Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
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90
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Courant T, Masson G. Recent Progress in Visible-Light Photoredox-Catalyzed Intermolecular 1,2-Difunctionalization of Double Bonds via an ATRA-Type Mechanism. J Org Chem 2016; 81:6945-52. [DOI: 10.1021/acs.joc.6b01058] [Citation(s) in RCA: 211] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thibaut Courant
- Institut de Chimie des Substances
Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette 91198, France
| | - Géraldine Masson
- Institut de Chimie des Substances
Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette 91198, France
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91
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Millet A, Lefebvre Q, Rueping M. Visible-Light Photoredox-Catalyzed Giese Reaction: Decarboxylative Addition of Amino Acid Derived α-Amino Radicals to Electron-Deficient Olefins. Chemistry 2016; 22:13464-8. [PMID: 27321136 DOI: 10.1002/chem.201602257] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Indexed: 12/14/2022]
Abstract
A tin- and halide-free, visible-light photoredox-catalyzed Giese reaction was developed. Primary and secondary α-amino radicals were generated readily from amino acids in the presence of catalytic amounts of an iridium photocatalyst. The reactivity of the α-amino radicals has been evaluated for the functionalization of a variety of activated olefins.
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Affiliation(s)
- Anthony Millet
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
| | - Quentin Lefebvre
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany. .,KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
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92
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Li L, Mu X, Liu W, Wang Y, Mi Z, Li CJ. Simple and Clean Photoinduced Aromatic Trifluoromethylation Reaction. J Am Chem Soc 2016; 138:5809-12. [DOI: 10.1021/jacs.6b02782] [Citation(s) in RCA: 233] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Lu Li
- Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
- Department
of Electrical and Computer Engineering, McGill University, 3480
University Street, Montreal, Quebec H3A 0E9, Canada
| | - Xiaoyue Mu
- Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Wenbo Liu
- Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Yichen Wang
- Department
of Electrical and Computer Engineering, McGill University, 3480
University Street, Montreal, Quebec H3A 0E9, Canada
| | - Zetian Mi
- Department
of Electrical and Computer Engineering, McGill University, 3480
University Street, Montreal, Quebec H3A 0E9, Canada
| | - Chao-Jun Li
- Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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93
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Zhu L, Wang LS, Li B, Fu B, Zhang CP, Li W. Operationally simple hydrotrifluoromethylation of alkenes with sodium triflinate enabled by Ir photoredox catalysis. Chem Commun (Camb) 2016; 52:6371-4. [PMID: 26996326 DOI: 10.1039/c6cc01944g] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We report herein a single component Ir photoredox catalyst which is capable of catalyzing the hydrotrifluoromethylation of terminal alkenes and Michael acceptors with sodium triflinate (Langlois reagent) in methanol under irradiation at room temperature. Various synthetically useful functional groups, including ester, amide, ether, aldehyde, sulfone, ketone and aryl boronate, are well tolerated in this reaction.
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Affiliation(s)
- Lei Zhu
- College of Chemistry and Materials Science, Hubei Engineering University, Hubei, 432000, China.
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94
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Cambié D, Bottecchia C, Straathof NJW, Hessel V, Noël T. Applications of Continuous-Flow Photochemistry in Organic Synthesis, Material Science, and Water Treatment. Chem Rev 2016; 116:10276-341. [PMID: 26935706 DOI: 10.1021/acs.chemrev.5b00707] [Citation(s) in RCA: 882] [Impact Index Per Article: 110.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Continuous-flow photochemistry in microreactors receives a lot of attention from researchers in academia and industry as this technology provides reduced reaction times, higher selectivities, straightforward scalability, and the possibility to safely use hazardous intermediates and gaseous reactants. In this review, an up-to-date overview is given of photochemical transformations in continuous-flow reactors, including applications in organic synthesis, material science, and water treatment. In addition, the advantages of continuous-flow photochemistry are pointed out and a thorough comparison with batch processing is presented.
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Affiliation(s)
- Dario Cambié
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry and Process Technology, Eindhoven University of Technology , Den Dolech 2, 5600 MB Eindhoven, The Netherlands
| | - Cecilia Bottecchia
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry and Process Technology, Eindhoven University of Technology , Den Dolech 2, 5600 MB Eindhoven, The Netherlands
| | - Natan J W Straathof
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry and Process Technology, Eindhoven University of Technology , Den Dolech 2, 5600 MB Eindhoven, The Netherlands
| | - Volker Hessel
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry and Process Technology, Eindhoven University of Technology , Den Dolech 2, 5600 MB Eindhoven, The Netherlands
| | - Timothy Noël
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry and Process Technology, Eindhoven University of Technology , Den Dolech 2, 5600 MB Eindhoven, The Netherlands.,Department of Organic Chemistry, Ghent University , Krijgslaan 281 (S4), 9000 Ghent, Belgium
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95
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Pan X, Xia H, Wu J. Recent advances in photoinduced trifluoromethylation and difluoroalkylation. Org Chem Front 2016. [DOI: 10.1039/c6qo00153j] [Citation(s) in RCA: 187] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent advances in photoinduced trifluoromethylation and difluoroalkylation under photocatalysis are summarized. Most of the photoredox reactions proceed efficiently under mild conditions with simple operation. Various fluorinated reagents are developed and applied in different transformations.
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Affiliation(s)
- Xiaolin Pan
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Hongguang Xia
- Department of Biochemistry and Molecular Biology
- Zhejiang University School of Medicine
- Hangzhou 310058
- China
| | - Jie Wu
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
- State Key Laboratory of Organometallic Chemistry
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96
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Yu XL, Chen JR, Chen DZ, Xiao WJ. Visible-light-induced photocatalytic azotrifluoromethylation of alkenes with aryldiazonium salts and sodium triflinate. Chem Commun (Camb) 2016; 52:8275-8. [DOI: 10.1039/c6cc03335k] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible light photocatalytic azotrifluoromethylation of alkenes with aryldiazonium salts and sodium triflinate is described, which gave the trifluoromethylated azo compounds in good yields.
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Affiliation(s)
- Xing-Long Yu
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
| | - Jia-Rong Chen
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
| | - Dong-Zhen Chen
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
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97
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Okusu S, Hirano K, Yasuda Y, Tokunaga E, Shibata N. Flow trifluoromethylation of carbonyl compounds by Ruppert–Prakash reagent and its application for pharmaceuticals, efavirenz and HSD-016. RSC Adv 2016. [DOI: 10.1039/c6ra19790f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Flow trifluoromethylation of carbonyl compounds using the Ruppert–Prakash reagent, Me3SiCF3 is disclosed including enantioselective trifluoromethylation. Synthesis of pharmaceuticals, efavirenz and HSD-016 were achieved by this flow method.
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Affiliation(s)
- Satoshi Okusu
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Kazuki Hirano
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Yoshimasa Yasuda
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
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98
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An Y, Kuang Y, Wu J. Synthesis of trifluoromethylated 3,4-dihydroquinolin-2(1H)-ones via a photo-induced radical cyclization of benzene-tethered 1,7-enynes with Togni reagent. Org Chem Front 2016. [DOI: 10.1039/c6qo00267f] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A photoinduced radical cyclization of benzene-tethered 1,7-enynes with Togni reagent in the presence of sodium iodide is developed. This transformation works well without any metals or photo-redox catalysts at room temperature.
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Affiliation(s)
- Yuanyuan An
- 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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99
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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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100
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Akita M, Koike T. Principles and Applications of Photoredox Catalysis:Trifluoromethylation and Beyond. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.1036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Munetaka Akita
- Laboratory for Chemistry and Life Science, Institute of Innovative Research,Tokyo Institute of Technology
| | - Takashi Koike
- Laboratory for Chemistry and Life Science, Institute of Innovative Research,Tokyo Institute of Technology
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