51
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Tlahuext‐Aca A, Garza‐Sanchez RA, Glorius F. Multicomponent Oxyalkylation of Styrenes Enabled by Hydrogen‐Bond‐Assisted Photoinduced Electron Transfer. Angew Chem Int Ed Engl 2017; 56:3708-3711. [DOI: 10.1002/anie.201700049] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Adrian Tlahuext‐Aca
- NRW Graduate School of Chemistry Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Correnstrasse 40 48149 Münster Germany
| | - R. Aleyda Garza‐Sanchez
- NRW Graduate School of Chemistry Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Correnstrasse 40 48149 Münster Germany
| | - Frank Glorius
- NRW Graduate School of Chemistry Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Correnstrasse 40 48149 Münster Germany
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52
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Yadav AK, Yadav LDS. Visible light photoredox catalysis with N-hydroxyphthalimide for [4+2] cyclization between N-methylanilines and maleimides. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.12.077] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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53
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Petersen WF, Taylor RJK, Donald JR. Photoredox-Catalyzed Reductive Carbamoyl Radical Generation: A Redox-Neutral Intermolecular Addition–Cyclization Approach to Functionalized 3,4-Dihydroquinolin-2-ones. Org Lett 2017; 19:874-877. [DOI: 10.1021/acs.orglett.7b00022] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - James R. Donald
- Department of Chemistry, University of York, York YO10 5DD, U.K
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54
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Hu J, Kong B, Liu Y, Xu B, Zhao Y, Gong P. Highly Stereoselective Synthesis of Imidazolidines through the Palladium(0)-Catalyzed Three-Component Reaction of 2,3-Allenylamines, Organic Halides, and Imines. ChemCatChem 2017. [DOI: 10.1002/cctc.201601345] [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)
- Jinxing Hu
- School of Pharmaceutical Engineering; Shenyang Pharmaceutical University; 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
| | - Bo Kong
- School of Pharmaceutical Engineering; Shenyang Pharmaceutical University; 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
| | - Yue Liu
- School of Pharmaceutical Engineering; Shenyang Pharmaceutical University; 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
| | - Boxuan Xu
- School of Pharmaceutical Engineering; Shenyang Pharmaceutical University; 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
| | - Yanfang Zhao
- School of Pharmaceutical Engineering; Shenyang Pharmaceutical University; 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
| | - Ping Gong
- School of Pharmaceutical Engineering; Shenyang Pharmaceutical University; 103 Wenhua Road, Shenhe District Shenyang 110016 People's Republic of China
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55
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Zhang GY, Xiang Y, Guan Z, He YH. Enzyme and photoredox sequential catalysis for the synthesis of 1,3-oxazine derivatives in one pot. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02682f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel strategy combining visible-light and enzyme catalysis for the synthesis of 1,3-oxazine derivatives is described for the first time.
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Affiliation(s)
- Guo-Yan Zhang
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- PR China
| | - Yang Xiang
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- PR China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- PR China
| | - Yan-Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- PR China
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56
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Jia X, Lü S, Yuan Y, Zhang X, Zhang L, Luo L. A dual removable activating group enabled the Povarov reaction of N-arylalanine esters: synthesis of quinoline-4-carboxylate esters. Org Biomol Chem 2017; 15:2931-2937. [DOI: 10.1039/c7ob00446j] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A dual removable activating group enabled Povarov reaction of N-arylalanine esters was reported.
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Affiliation(s)
- Xiaodong Jia
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
- College of Chemistry and Chemical Engineering
| | - Shiwei Lü
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Yu Yuan
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Xuewen Zhang
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Liang Zhang
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Liangliang Luo
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
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57
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Fan L, Jia J, Hou H, Lefebvre Q, Rueping M. Decarboxylative Aminomethylation of Aryl- and Vinylsulfonates through Combined Nickel- and Photoredox-Catalyzed Cross-Coupling. Chemistry 2016; 22:16437-16440. [PMID: 27661773 DOI: 10.1002/chem.201604452] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Indexed: 12/16/2022]
Abstract
A mild approach for the decarboxylative aminomethylation of aryl sulfonates by the combination of photoredox and nickel catalysis through C-O bond cleavage is described for the first time. A wide range of aryl triflates as well as aryl mesylates, tosylates and alkenyl triflates afford the corresponding products in good to excellent yields.
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Affiliation(s)
- Lulu Fan
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Jiaqi Jia
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Hong Hou
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Quentin Lefebvre
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen University, 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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58
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Nakajima K, Miyake Y, Nishibayashi Y. Synthetic Utilization of α-Aminoalkyl Radicals and Related Species in Visible Light Photoredox Catalysis. Acc Chem Res 2016; 49:1946-56. [PMID: 27505299 DOI: 10.1021/acs.accounts.6b00251] [Citation(s) in RCA: 292] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Single electron oxidation of amines provides an efficient way to access synthetically useful α-aminoalkyl radicals as reactive intermediates. After the single electron oxidation of amines, fragmentation of the resulting radical cations proceeds to give the α-aminoalkyl radicals along with generation of a proton. In the synthetic utilization of the α-aminoalkyl radicals, precise control of single electron transfer is essential, because further oxidation of the α-aminoalkyl radicals occurs more easily than the starting amines and the α-aminoalkyl radicals are converted into the corresponding iminium ions. As a result, photoinduced single electron transfer is quite attractive in the synthetic utilization of the α-aminoalkyl radicals. Recently, visible light-photoredox catalysis using transition metal-polypyridyl complexes and other dyes as catalysts has attracted considerable attention, where useful molecular transformations can be achieved through the single electron transfer process between the excited catalysts and substrates. In this context, MacMillan et al. ( Science 2011, 334 , 1114 , DOI: 10.1126/science.1213920 ) reported an aromatic substitution reaction of cyanoarenes with amines, where α-aminoalkyl radicals work as key reactive intermediates. Pandey and Reiser et al. ( Org. Lett. 2012 , 14 , 672 , DOI: 10.1021/ol202857t ) and our group ( Nishibayashi et al. J. Am. Chem. Soc. 2012 , 134 , 3338 , DOI: 10.1021/ja211770y ) independently reported reactions of amines with α,β-unsaturated carbonyl compounds, where addition of α-aminoalkyl radicals to alkenes is a key step. After these earliest examples, nowadays, a variety of transformations using the α-aminoalkyl radicals as reactive intermediates have been reported by many groups. The α-aminoalkyl radicals are usually produced from amines by single electron oxidation and the subsequent deprotonation of the C-H bond adjacent to the nitrogen atom. In addition, the α-aminoalkyl radicals are also produced from α-silylamines and α-amino acids in high efficiency through desilylation or decarboxylation after the single electron oxidation. The generated α-aminoalkyl radicals are utilized in a variety of reaction systems. In fact, reactions based on the addition of α-aminoalkyl radicals to alkenes and other unsaturated bonds have been extensively studied. Aromatic and other types of substitution reactions have also been investigated. Some of these transformations are achieved by combination of photoredox catalysts and other catalysts such as Brønsted and Lewis acids, organocatalysts, and transition metal catalysts. It is also noteworthy that the enantioselective reactions have been accomplished by combination of photoredox catalysts and chiral catalysts. The strategy for the generation of α-aminoalkyl radicals can be applied to utilize other types of alkyl radicals. In the generation of α-aminoalkyl radicals, the bond dissociation of the radical cations occurs at the α-position of amines. In relation to this process, synthetic utilization of other types of alkyl radicals generated by the bond dissociation of the radical cations at a remote position has been also investigated. These alkyl radicals have been applied to molecular transformations in a manner similar to the α-aminoalkyl radicals. Recently, organic synthesis using the α-aminoalkyl radicals and related alkyl radicals has been studied extensively. In this Account, we describe recent advances in photoredox-catalyzed synthetic utilization of these alkyl radicals.
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Affiliation(s)
- Kazunari Nakajima
- Department of Systems Innovation,
School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yoshihiro Miyake
- Department of Systems Innovation,
School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yoshiaki Nishibayashi
- Department of Systems Innovation,
School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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59
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Cheng J, Deng X, Wang G, Li Y, Cheng X, Li G. Intermolecular C–H Quaternary Alkylation of Aniline Derivatives Induced by Visible-Light Photoredox Catalysis. Org Lett 2016; 18:4538-41. [DOI: 10.1021/acs.orglett.6b02179] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jie Cheng
- Institute
of Chemistry and Biomedical Sciences, School of Chemistry and Chemical
Engineering, Nanjing University, Nanjing 210023, China
| | - Xia Deng
- Institute
of Chemistry and Biomedical Sciences, School of Chemistry and Chemical
Engineering, Nanjing University, Nanjing 210023, China
| | - Guoqiang Wang
- Institute
of Theoretical and Computational Chemistry, School of Chemistry and
Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Ying Li
- Institute
of Chemistry and Biomedical Sciences, School of Chemistry and Chemical
Engineering, Nanjing University, Nanjing 210023, China
| | - Xu Cheng
- Institute
of Chemistry and Biomedical Sciences, School of Chemistry and Chemical
Engineering, Nanjing University, Nanjing 210023, China
| | - Guigen Li
- Institute
of Chemistry and Biomedical Sciences, School of Chemistry and Chemical
Engineering, Nanjing University, Nanjing 210023, China
- Department
of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
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60
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Xiao T, Li L, Zhou L. Synthesis of Functionalized gem-Difluoroalkenes via a Photocatalytic Decarboxylative/Defluorinative Reaction. J Org Chem 2016; 81:7908-16. [PMID: 27467781 DOI: 10.1021/acs.joc.6b01620] [Citation(s) in RCA: 158] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A photocatalytic decarboxylative/defluorinative reaction of α-trifluoromethyl alkenes with α-keto acids and α-amino acids has been developed. The reaction occurs at room temperature under visible light irradiation, affording various γ,γ-difluoroallylic ketones and 1,1-difluorohomoallyl amines in good yields. The synthetic applications of the resulting functionalized gem-difluoroalkenes were also described.
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Affiliation(s)
- Tiebo Xiao
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University , 135 Xingang West Road, Guangzhou, 510275, China
| | - Linyong Li
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University , 135 Xingang West Road, Guangzhou, 510275, China
| | - Lei Zhou
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University , 135 Xingang West Road, Guangzhou, 510275, China
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61
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Intermolecular cyclization of N-methylanilines and maleimides to tetrahydroquinolines via K2S2O8 promoted C(sp3)–H activation. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.078] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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62
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Liu P, Zhang G, Sun P. Transition metal-free decarboxylative alkylation reactions. Org Biomol Chem 2016; 14:10763-10777. [DOI: 10.1039/c6ob02101h] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
This review summarizes recent advances in the transition metal-free decarboxylative alkylation of carboxylic acids and their derivatives.
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Affiliation(s)
- 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
| | - Guanghui Zhang
- School of Chemical Engineering
- Purdue University
- West Lafayette
- USA
| | - 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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63
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Yadav AK, Yadav LDS. N-Hydroxyphthalimide: a new photoredox catalyst for [4+1] radical cyclization of N-methylanilines with isocyanides. Chem Commun (Camb) 2016; 52:10621-4. [DOI: 10.1039/c6cc04846c] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A highly regioselective synthesis of 3-iminodihydroindoles using N-methylanilines and isocyanides at room temperature is described. The protocol utilizes N-hydroxyphthalimide as a new single electron transfer photoredox catalyst.
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Affiliation(s)
- Arvind K. Yadav
- Green Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Lal Dhar S. Yadav
- Green Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
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64
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Izquierdo C, Esteban F, Ruano JLG, Fraile A, Alemán J. Asymmetric Synthesis of 1,2-Diamines bearing Tetrasubstituted Centers from Nonstabilized Azomethine Ylides and N-Sulfinylketimines under Brønsted Acid Catalysis. Org Lett 2015; 18:92-5. [DOI: 10.1021/acs.orglett.5b03251] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cristina Izquierdo
- Organic Chemistry
Department,
Science Faculty, Universidad Autonóma de Madrid, Madrid 28049, Spain
| | - Francisco Esteban
- Organic Chemistry
Department,
Science Faculty, Universidad Autonóma de Madrid, Madrid 28049, Spain
| | - José Luis García Ruano
- Organic Chemistry
Department,
Science Faculty, Universidad Autonóma de Madrid, Madrid 28049, Spain
| | - Alberto Fraile
- Organic Chemistry
Department,
Science Faculty, Universidad Autonóma de Madrid, Madrid 28049, Spain
| | - José Alemán
- Organic Chemistry
Department,
Science Faculty, Universidad Autonóma de Madrid, Madrid 28049, Spain
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65
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Synthesis of aziridines by visible-light induced decarboxylative cyclization of N-aryl glycines and diazo compounds. Sci China Chem 2015. [DOI: 10.1007/s11426-015-5513-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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66
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Xuan J, Zhang Z, Xiao W. Visible‐Light‐Induced Decarboxylative Functionalization of Carboxylic Acids and Their Derivatives. Angew Chem Int Ed Engl 2015; 54:15632-41. [DOI: 10.1002/anie.201505731] [Citation(s) in RCA: 562] [Impact Index Per Article: 62.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Jun Xuan
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University (CCNU), 152 Luoyu Road, Wuhan, Hubei 430079 (China) http://chem‐xiao.ccnu.edu.cn/
| | - Zhao‐Guo Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China)
| | - Wen‐Jing Xiao
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University (CCNU), 152 Luoyu Road, Wuhan, Hubei 430079 (China) http://chem‐xiao.ccnu.edu.cn/
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67
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Xuan J, Zhang Z, Xiao W. Durch sichtbares Licht induzierte decarboxylierende Funktionalisierung von Carbonsäuren und ihren Derivaten. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505731] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Jun Xuan
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University (CCNU), 152 Luoyu Road, Wuhan, Hubei 430079 (China) http://chem‐xiao.ccnu.edu.cn/
| | - Zhao‐Guo Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China)
| | - Wen‐Jing Xiao
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University (CCNU), 152 Luoyu Road, Wuhan, Hubei 430079 (China) http://chem‐xiao.ccnu.edu.cn/
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68
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Angnes RA, Li Z, Correia CRD, Hammond GB. Recent synthetic additions to the visible light photoredox catalysis toolbox. Org Biomol Chem 2015; 13:9152-67. [PMID: 26242759 DOI: 10.1039/c5ob01349f] [Citation(s) in RCA: 171] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The boom in visible light photoredox catalysis (VLPC) research has demonstrated that this novel synthetic approach is here to stay. VLPC enables reactive radical intermediates to be catalytically generated at ambient temperature, a feat not generally allowed through traditional pyrolysis- or radical initiator-based methodologies. VLPC has vastly extended the range of substrates and reaction schemes that have been traditionally the domain of radical reactions. In this review the photophysics background of VLPC will be briefly discussed, followed by a report on recent inroads of VLPC into decarboxylative couplings and radical C-H functionalization of aromatic compounds. The bulk of the review will be dedicated to advances in synergistic catalysis involving VLPC, namely the combination of photoredox catalysis with organocatalysis, including β-functionalization of carbonyl groups, functionalization of weak aliphatic C-H bonds, and anti-Markovnikov hydrofunctionalization of alkenes; dual catalysis with gold or with nickel, photoredox catalysis as an oxidation promoter in transition metal catalysis, and acid-catalyzed enantioselective radical addition to π systems.
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Affiliation(s)
- Ricardo A Angnes
- Chemistry Institute, State University of Campinas - Unicamp C.P. 6154, CEP. 13083-970, Campinas, São Paulo, Brazil
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69
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Le Vaillant F, Courant T, Waser J. Room-Temperature Decarboxylative Alkynylation of Carboxylic Acids Using Photoredox Catalysis and EBX Reagents. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/anie.201505111] [Citation(s) in RCA: 177] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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70
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Le Vaillant F, Courant T, Waser J. Room-Temperature Decarboxylative Alkynylation of Carboxylic Acids Using Photoredox Catalysis and EBX Reagents. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505111] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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71
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Zhou QQ, Guo W, Ding W, Wu X, Chen X, Lu LQ, Xiao WJ. Decarboxylative Alkynylation and Carbonylative Alkynylation of Carboxylic Acids Enabled by Visible-Light Photoredox Catalysis. Angew Chem Int Ed Engl 2015; 54:11196-9. [DOI: 10.1002/anie.201504559] [Citation(s) in RCA: 255] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 06/17/2015] [Indexed: 01/08/2023]
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72
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Zhou QQ, Guo W, Ding W, Wu X, Chen X, Lu LQ, Xiao WJ. Decarboxylative Alkynylation and Carbonylative Alkynylation of Carboxylic Acids Enabled by Visible-Light Photoredox Catalysis. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504559] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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73
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Nakajima K, Ashida Y, Nojima S, Nishibayashi Y. Radical Addition to Corannulene Mediated by Visible-light-photoredox Catalysts. CHEM LETT 2015. [DOI: 10.1246/cl.150019] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kazunari Nakajima
- Institute of Engineering Innovation, School of Engineering, The University of Tokyo
| | - Yuya Ashida
- Institute of Engineering Innovation, School of Engineering, The University of Tokyo
| | - Sunao Nojima
- Institute of Engineering Innovation, School of Engineering, The University of Tokyo
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74
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Liang Z, Xu S, Tian W, Zhang R. Eosin Y-catalyzed visible-light-mediated aerobic oxidative cyclization of N,N-dimethylanilines with maleimides. Beilstein J Org Chem 2015; 11:425-30. [PMID: 25977716 PMCID: PMC4419562 DOI: 10.3762/bjoc.11.48] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 03/16/2015] [Indexed: 12/03/2022] Open
Abstract
A novel and simple strategy for the efficient synthesis of the corresponding tetrahydroquinolines from N,N-dimethylanilines and maleimides using visible light in an air atmosphere in the presence of Eosin Y as a photocatalyst has been developed. The metal-free protocol involves aerobic oxidative cyclization via sp3 C–H bond functionalization process to afford good yields in a one-pot procedure under mild conditions.
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Affiliation(s)
- Zhongwei Liang
- Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China ; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Siping Road 1239, Shanghai 200092, China
| | - Song Xu
- Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China ; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Siping Road 1239, Shanghai 200092, China ; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiahang Road 118, Zhejiang 314001, China
| | - Wenyan Tian
- Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China ; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Siping Road 1239, Shanghai 200092, China
| | - Ronghua Zhang
- Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China ; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Siping Road 1239, Shanghai 200092, China
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75
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Bizet V, Bolm C. Sulfur Imidations by Light-Induced Ruthenium-Catalyzed Nitrene Transfer Reactions. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500220] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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76
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Nagatomo M, Nishiyama H, Fujino H, Inoue M. Decarbonylative Radical Coupling of α-Aminoacyl Tellurides: Single-Step Preparation of γ-Amino and α,β-Diamino Acids and Rapid Synthesis of Gabapentin and Manzacidin A. Angew Chem Int Ed Engl 2014; 54:1537-41. [DOI: 10.1002/anie.201410186] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Indexed: 11/09/2022]
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77
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Nagatomo M, Nishiyama H, Fujino H, Inoue M. Decarbonylative Radical Coupling of α-Aminoacyl Tellurides: Single-Step Preparation of γ-Amino and α,β-Diamino Acids and Rapid Synthesis of Gabapentin and Manzacidin A. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201410186] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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78
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Abstract
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A new
coupling protocol has been developed that allows the union
of vinyl sulfones with photoredox-generated α-amino radicals
to provide allylic amines of broad diversity. Direct C–H vinylations
of N-aryl tertiary amines, as well as decarboxylative
vinylations of N-Boc α-amino acids, proceed
in high yield and with excellent olefin geometry control. The utility
of this new allyl amine forming reaction has been demonstrated via
the syntheses of several natural products and a number of established
pharmacophores.
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Affiliation(s)
- Adam Noble
- Merck Center for Catalysis at Princeton University , Princeton, New Jersey 08544, United States
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79
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Chu L, Ohta C, Zuo Z, MacMillan DWC. Carboxylic acids as a traceless activation group for conjugate additions: a three-step synthesis of (±)-pregabalin. J Am Chem Soc 2014; 136:10886-9. [PMID: 25032785 PMCID: PMC4132975 DOI: 10.1021/ja505964r] [Citation(s) in RCA: 424] [Impact Index Per Article: 42.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Indexed: 12/22/2022]
Abstract
The direct application of carboxylic acids as a traceless activation group for radical Michael additions has been accomplished via visible light-mediated photoredox catalysis. Photon-induced oxidation of a broad series of carboxylic acids, including hydrocarbon-substituted, α-oxy, and α-amino acids, provides a versatile CO2-extrusion platform to generate Michael donors without the requirement for organometallic activation or propagation. A diverse array of Michael acceptors is amenable to this new conjugate addition strategy. An application of this technology to a three-step synthesis of the medicinal agent pregabalin (commercialized by Pfizer under the trade name Lyrica) is also presented.
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Affiliation(s)
- Lingling Chu
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Chisa Ohta
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Zhiwei Zuo
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - David W. C. MacMillan
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
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80
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Manley DW, Mills A, O'Rourke C, Slawin AMZ, Walton JC. Catalyst-free photoredox addition-cyclisations: exploitation of natural synergy between aryl acetic acids and maleimide. Chemistry 2014; 20:5492-500. [PMID: 24652772 PMCID: PMC4506563 DOI: 10.1002/chem.201304929] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Indexed: 11/23/2022]
Abstract
Suitably functionalised carboxylic acids undergo a previously unknown photoredox reaction when irradiated with UVA in the presence of maleimide. Maleimide was found to synergistically act as a radical generating photoxidant and as a radical acceptor, negating the need for an extrinsic photoredox catalyst. Modest to excellent yields of the product chromenopyrroledione, thiochromenopyrroledione and pyrroloquinolinedione derivatives were obtained in thirteen preparative photolyses. In situ NMR spectroscopy was used to study each reaction. Reactant decay and product build-up were monitored, enabling reaction profiles to be plotted. A plausible mechanism, whereby photo-excited maleimide acts as an oxidant to generate a radical ion pair, has been postulated and is supported by UV/Vis. spectroscopy and DFT computations. The radical-cation reactive intermediates were also characterised in solution by EPR spectroscopy.
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Affiliation(s)
- David W Manley
- EaStCHEM School of Chemistry, University of St. AndrewsPurdie Building, North Haugh, St Andrews, Fife, KY16 9ST (UK) E-mail:
| | - Andrew Mills
- School of Chemistry and Chemical Engineering, Queen's University BelfastStranmillis Road, Belfast BT9 5AG (UK)
| | - Christopher O'Rourke
- School of Chemistry and Chemical Engineering, Queen's University BelfastStranmillis Road, Belfast BT9 5AG (UK)
| | - Alexandra M Z Slawin
- EaStCHEM School of Chemistry, University of St. AndrewsPurdie Building, North Haugh, St Andrews, Fife, KY16 9ST (UK) E-mail:
| | - John C Walton
- EaStCHEM School of Chemistry, University of St. AndrewsPurdie Building, North Haugh, St Andrews, Fife, KY16 9ST (UK) E-mail:
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81
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Hopkinson MN, Sahoo B, Li JL, Glorius F. Dual Catalysis Sees the Light: Combining Photoredox with Organo-, Acid, and Transition-Metal Catalysis. Chemistry 2014; 20:3874-86. [DOI: 10.1002/chem.201304823] [Citation(s) in RCA: 579] [Impact Index Per Article: 57.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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