151
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Dong J, Wang X, Wang Z, Song H, Liu Y, Wang Q. Metal-, photocatalyst-, and light-free late-stage C–H alkylation of N-heteroarenes with organotrimethylsilanes using persulfate as a stoichiometric oxidant. Org Chem Front 2019. [DOI: 10.1039/c9qo00690g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Minisci C–H alkylation of N-heteroarenes with readily available benzylsilanes and heteroatom substituted silanes was developed.
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Affiliation(s)
- Jianyang Dong
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Xiaochen Wang
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Zhen Wang
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
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152
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Chen Y. Recent Advances in Methylation: A Guide for Selecting Methylation Reagents. Chemistry 2018; 25:3405-3439. [DOI: 10.1002/chem.201803642] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Yantao Chen
- Medicinal Chemistry, Cardiovascular, Renal and Metabolism, IMED Biotech UnitAstraZeneca Gothenburg Sweden
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153
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Bonardi AH, Dumur F, Noirbent G, Lalevée J, Gigmes D. Organometallic vs organic photoredox catalysts for photocuring reactions in the visible region. Beilstein J Org Chem 2018; 14:3025-3046. [PMID: 30591826 PMCID: PMC6296434 DOI: 10.3762/bjoc.14.282] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 11/23/2018] [Indexed: 12/22/2022] Open
Abstract
Recent progresses achieved in terms of synthetic procedures allow now the access to polymers of well-defined composition, molecular weight and architecture. Thanks to these recent progresses in polymer engineering, the scope of applications of polymers is far wider than that of any other class of material, ranging from adhesives, coatings, packaging materials, inks, paints, optics, 3D printing, microelectronics or textiles. From a synthetic viewpoint, photoredox catalysis, originally developed for organic chemistry, has recently been applied to the polymer synthesis, constituting a major breakthrough in polymer chemistry. Thanks to the development of photoredox catalysts of polymerization, a drastic reduction of the amount of photoinitiators could be achieved, addressing the toxicity and the extractability issues; high performance initiating abilities are still obtained due to the catalytic approach which regenerates the catalyst. As it is a fast-growing field, this review will be mainly focused on an overview of the recent advances concerning the development of organic and organometallic photoredox catalysts for the photoreticulation of multifunctional monomers for a rapid and efficient access to 3D polymer networks.
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Affiliation(s)
- Aude-Héloise Bonardi
- Université de Haute-Alsace, CNRS, IS2M UMR 7361, F-68100 Mulhouse, France
- Université de Strasbourg, France
| | - Frédéric Dumur
- Aix Marseille Univ, CNRS, ICR UMR 7273, F-13397 Marseille, France
| | | | - Jacques Lalevée
- Université de Haute-Alsace, CNRS, IS2M UMR 7361, F-68100 Mulhouse, France
- Université de Strasbourg, France
| | - Didier Gigmes
- Aix Marseille Univ, CNRS, ICR UMR 7273, F-13397 Marseille, France
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154
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Li R, Chen X, Wei S, Sun K, Fan L, Liu Y, Qu L, Zhao Y, Yu B. A Visible-Light-Promoted Metal-Free Strategy towards Arylphosphonates: Organic-Dye-Catalyzed Phosphorylation of Arylhydrazines with Trialkylphosphites. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801122] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rui Li
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 People's Republic of China
| | - Xiaolan Chen
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 People's Republic of China
- The Key Laboratory for Chemical Biology of Fujian Province; Xiamen University; Xiamen 361005 People's Republic of China
| | - Shengkai Wei
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 People's Republic of China
| | - Kai Sun
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 People's Republic of China
| | - Lulu Fan
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 People's Republic of China
| | - Yan Liu
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 People's Republic of China
- College of biological and pharmaceutical engineering; Xinyang Agriculture & Forestry University; Xinyang 464000 People's Republic of China
| | - Lingbo Qu
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 People's Republic of China
| | - Yufen Zhao
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 People's Republic of China
- The Key Laboratory for Chemical Biology of Fujian Province; Xiamen University; Xiamen 361005 People's Republic of China
| | - Bing Yu
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 People's Republic of China
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155
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Speckmeier E, Fischer TG, Zeitler K. A Toolbox Approach To Construct Broadly Applicable Metal-Free Catalysts for Photoredox Chemistry: Deliberate Tuning of Redox Potentials and Importance of Halogens in Donor-Acceptor Cyanoarenes. J Am Chem Soc 2018; 140:15353-15365. [PMID: 30277767 DOI: 10.1021/jacs.8b08933] [Citation(s) in RCA: 348] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The targeted choice of specific photocatalysts has been shown to play a critical role for the successful realization of challenging photoredox catalytic transformations. Herein, we demonstrate the successful implementation of a rational design strategy for a series of deliberate structural manipulations of cyanoarene-based, purely organic donor-acceptor photocatalysts, using 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) as a starting point. Systematic modifications of both the donor substituents as well as the acceptors' molecular core allowed us to identify strongly oxidizing as well as strongly reducing catalysts (e.g., for an unprecedented detriflation of unactivated naphthol triflate), which additionally offer remarkably balanced redox potentials with predictable trends. Especially halogen arene core substitutions are instrumental for our targeted alterations of the catalysts' redox properties. Based on their preeminent electrochemical and photophysical characteristics, all novel, purely organic photoredox catalysts were evaluated in three challenging, mechanistically distinct classes of benchmark reactions (either requiring balanced, highly oxidizing or strongly reducing properties) to demonstrate their enormous potential as customizable photocatalysts, that outperform and complement prevailing typical best photocatalysts.
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Affiliation(s)
- Elisabeth Speckmeier
- Institut für Organische Chemie , Universität Leipzig , Johannisallee 29 , D-04103 Leipzig , Germany
| | - Tillmann G Fischer
- Institut für Organische Chemie , Universität Leipzig , Johannisallee 29 , D-04103 Leipzig , Germany
| | - Kirsten Zeitler
- Institut für Organische Chemie , Universität Leipzig , Johannisallee 29 , D-04103 Leipzig , Germany
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156
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Sutherland DR, Veguillas M, Oates CL, Lee AL. Metal-, Photocatalyst-, and Light-Free, Late-Stage C–H Alkylation of Heteroarenes and 1,4-Quinones Using Carboxylic Acids. Org Lett 2018; 20:6863-6867. [DOI: 10.1021/acs.orglett.8b02988] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel R. Sutherland
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, U.K
| | - Marcos Veguillas
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, U.K
| | - Conor L. Oates
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, U.K
| | - Ai-Lan Lee
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, U.K
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157
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Wu Q, Han S, Ren X, Lu H, Li J, Zou D, Wu Y, Wu Y. Pd-Catalyzed Alkylation of (Iso)quinolines and Arenes: 2-Acylpyridine Compounds as Alkylation Reagents. Org Lett 2018; 20:6345-6348. [PMID: 30284838 DOI: 10.1021/acs.orglett.8b02498] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The first Pd-catalyzed alkylation of (iso)quinolines and arenes is reported. The readily available and bench-stable 2-acylpyridine compounds were used as an alkylation reagent to form the structurally versatile alkylated (iso)quinolines and arenes. The method affords a convenient pathway for the introduction of alkyl groups into organic molecules.
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Affiliation(s)
- Qingsong Wu
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Shuaijun Han
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Xiaoxiao Ren
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Hongtao Lu
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Jingya Li
- Tetranov Biopharm, LLC, and Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou , 450052 , People's Republic of China
| | - Dapeng Zou
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Yangjie Wu
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Yusheng Wu
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China.,Tetranov Biopharm, LLC, and Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou , 450052 , People's Republic of China.,Tetranov International, Inc.. 100 Jersey Avenue, Suite A340 , New Brunswick , New Jersey 08901 , United States
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158
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159
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Liu X, Liu Y, Chai G, Qiao B, Zhao X, Jiang Z. Organocatalytic Enantioselective Addition of α-Aminoalkyl Radicals to Isoquinolines. Org Lett 2018; 20:6298-6301. [PMID: 30256118 DOI: 10.1021/acs.orglett.8b02791] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
With a dual organocatalytic system involving a chiral phosphoric acid and a dicyanopyrazine-derived chromophore (DPZ) photosensitizer and under the irradiation with visible light, an enantioselective Minisci-type addition of α-amino acid-derived redox-active esters (RAEs) to isoquinolines has been developed. A variety of prochiral α-aminoalkyl radicals generated from RAEs were successfully introduced on isoquinolines, providing a range of valuable α-isoquinoline-substituted chiral secondary amines in high yields with good to excellent enantioselectivities.
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Affiliation(s)
- Xiangyuan Liu
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng 475004 , P. R. China
| | - Yang Liu
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng 475004 , P. R. China
| | - Guobi Chai
- Key Laboratory of Tobacco Flavor Basic Research of CNTC , Zhengzhou Tobacco Research Institute of CNTC , Zhengzhou , Henan 450001 , P. R. China
| | - Baokun Qiao
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng 475004 , P. R. China
| | - Xiaowei Zhao
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng 475004 , P. R. China
| | - Zhiyong Jiang
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng 475004 , P. R. China.,School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , P. R. China
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160
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Bosset C, Beucher H, Bretel G, Pasquier E, Queguiner L, Henry C, Vos A, Edwards JP, Meerpoel L, Berthelot D. Minisci-Photoredox-Mediated α-Heteroarylation of N-Protected Secondary Amines: Remarkable Selectivity of Azetidines. Org Lett 2018; 20:6003-6006. [DOI: 10.1021/acs.orglett.8b00991] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Cyril Bosset
- Janssen Research and Development, Division of Janssen-Cilag S.A., Chaussée du Vexin, Val de Reuil 27100 Cedex, France
| | - Hélène Beucher
- Janssen Research and Development, Division of Janssen-Cilag S.A., Chaussée du Vexin, Val de Reuil 27100 Cedex, France
| | - Guillaume Bretel
- Janssen Research and Development, Division of Janssen-Cilag S.A., Chaussée du Vexin, Val de Reuil 27100 Cedex, France
| | - Elisabeth Pasquier
- Janssen Research and Development, Division of Janssen-Cilag S.A., Chaussée du Vexin, Val de Reuil 27100 Cedex, France
| | - Laurence Queguiner
- Janssen Research and Development, Division of Janssen-Cilag S.A., Chaussée du Vexin, Val de Reuil 27100 Cedex, France
| | - Cyril Henry
- Janssen Research and Development, Division of Janssen-Cilag S.A., Chaussée du Vexin, Val de Reuil 27100 Cedex, France
| | - Ann Vos
- Janssen Research and Development, Division of Janssen Pharmaceutica N.V., Turnhoutseweg 30, 2340 Beerse, Belgium
| | - James P. Edwards
- Janssen Research and Development, LLC, 1400 McKean Road, Spring House, Pennsylvania 19002, United States
| | - Lieven Meerpoel
- Janssen Research and Development, Division of Janssen Pharmaceutica N.V., Turnhoutseweg 30, 2340 Beerse, Belgium
| | - Didier Berthelot
- Janssen Research and Development, Division of Janssen-Cilag S.A., Chaussée du Vexin, Val de Reuil 27100 Cedex, France
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161
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Guo J, Wu QL, Xie Y, Weng J, Lu G. Visible-Light-Mediated Decarboxylative Benzylation of Imines with Arylacetic Acids. J Org Chem 2018; 83:12559-12567. [DOI: 10.1021/acs.joc.8b01849] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jing Guo
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Qiao-Lei Wu
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Ying Xie
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Jiang Weng
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Gui Lu
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
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162
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Liu W, Liu P, Lv L, Li CJ. Metal-Free and Redox-Neutral Conversion of Organotrifluoroborates into Radicals Enabled by Visible Light. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807181] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wenbo Liu
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Peng Liu
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
- Ministry of Education Key Laboratory of Combinatorial Biosynthesis and Drug Discovery; Hubei Provincial Engineering and Technology Research Center for Fluorinated Pharmaceuticals; School of Pharmaceutical Sciences; Wuhan University; Wuhan 430071 China
| | - Leiyang Lv
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Chao-Jun Li
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
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163
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Liu W, Liu P, Lv L, Li CJ. Metal-Free and Redox-Neutral Conversion of Organotrifluoroborates into Radicals Enabled by Visible Light. Angew Chem Int Ed Engl 2018; 57:13499-13503. [PMID: 30146767 DOI: 10.1002/anie.201807181] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 07/13/2018] [Indexed: 11/12/2022]
Abstract
Converting organoboron compounds into the corresponding radicals has broad synthetic applications in organic chemistry. To achieve these transformations, various strong oxidants such as Mn(OAc)3 , AgNO3 /K2 S2 O8 , and Cu(OAc)2 , in stoichiometric amounts are required, proceeding by a single-electron transfer mechanism. Established herein is a distinct strategy for generating both aryl and alkyl radicals from organotrifluoroborates through an SH 2 process. This strategy is enabled by using water as the solvent, visible light as the energy input, and diacetyl as the promoter in the absence of any metal catalyst or redox reagent, thereby eliminating metal waste. To demonstrate its synthetic utility, an efficient acetylation to prepare valuable aryl (alkyl) methyl ketones is described and applications to construct C-C, C-I, C-Br, and C-S bonds are also feasible. Experimental evidence suggests that triplet diacetyl serves as the key intermediate in this process.
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Affiliation(s)
- Wenbo Liu
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec, H3A 0B8, Canada
| | - Peng Liu
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec, H3A 0B8, Canada.,Ministry of Education Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Hubei Provincial Engineering and Technology Research Center for Fluorinated Pharmaceuticals, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Leiyang Lv
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec, H3A 0B8, Canada
| | - Chao-Jun Li
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec, H3A 0B8, Canada
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164
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Han S, Chakrasali P, Park J, Oh H, Kim S, Kim K, Pandey AK, Han SH, Han SB, Kim IS. Reductive C2-Alkylation of Pyridine and Quinoline N
-Oxides Using Wittig Reagents. Angew Chem Int Ed Engl 2018; 57:12737-12740. [DOI: 10.1002/anie.201807159] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Sangil Han
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Prashant Chakrasali
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - Jihye Park
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Hyunjung Oh
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Saegun Kim
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Kyuneun Kim
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - Ashok Kumar Pandey
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Sang Hoon Han
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Soo Bong Han
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - In Su Kim
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
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165
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Han S, Chakrasali P, Park J, Oh H, Kim S, Kim K, Pandey AK, Han SH, Han SB, Kim IS. Reductive C2-Alkylation of Pyridine and Quinoline N
-Oxides Using Wittig Reagents. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807159] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sangil Han
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Prashant Chakrasali
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - Jihye Park
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Hyunjung Oh
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Saegun Kim
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Kyuneun Kim
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - Ashok Kumar Pandey
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Sang Hoon Han
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
| | - Soo Bong Han
- Bio and Drug Discovery Division; Korea Research Institute of Chemical Technology; Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry; University of Science and Technology; Daejeon 34113 Republic of Korea
| | - In Su Kim
- School of Pharmacy; Sungkyunkwan University; Suwon 16419 Republic of Korea
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166
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Bissonnette NB, Boyd MJ, May GD, Giroux S, Nuhant P. C–H Functionalization of Heteroarenes Using Unactivated Alkyl Halides through Visible-Light Photoredox Catalysis under Basic Conditions. J Org Chem 2018; 83:10933-10940. [DOI: 10.1021/acs.joc.8b01589] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Noah B. Bissonnette
- Vertex Pharmaceuticals Inc., 50 Northern Avenue, Boston, Massachusetts 02210, United States
| | - Michael J. Boyd
- Vertex Pharmaceuticals Inc., 50 Northern Avenue, Boston, Massachusetts 02210, United States
| | - Gregory D. May
- Vertex Pharmaceuticals Inc., 50 Northern Avenue, Boston, Massachusetts 02210, United States
| | - Simon Giroux
- Vertex Pharmaceuticals Inc., 50 Northern Avenue, Boston, Massachusetts 02210, United States
| | - Philippe Nuhant
- Vertex Pharmaceuticals Inc., 50 Northern Avenue, Boston, Massachusetts 02210, United States
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167
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Bogdos MK, Pinard E, Murphy JA. Applications of organocatalysed visible-light photoredox reactions for medicinal chemistry. Beilstein J Org Chem 2018; 14:2035-2064. [PMID: 30202458 PMCID: PMC6122060 DOI: 10.3762/bjoc.14.179] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 07/13/2018] [Indexed: 12/12/2022] Open
Abstract
The focus of this review is to provide an overview of the field of organocatalysed photoredox chemistry relevant to synthetic medicinal chemistry. Photoredox transformations have been shown to enable key transformations that are important to the pharmaceutical industry. This type of chemistry has also demonstrated a high degree of sustainability, especially when organic dyes can be employed in place of often toxic and environmentally damaging transition metals. The sections are arranged according to the general class of the presented reactions and the value of these methods to medicinal chemistry is considered. An overview of the general characteristics of the photocatalysts as well as some electrochemical data is presented. In addition, the general reaction mechanisms for organocatalysed photoredox transformations are discussed and some individual mechanistic considerations are highlighted in the text when appropriate.
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Affiliation(s)
- Michael K Bogdos
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1 XL, United Kingdom
| | - Emmanuel Pinard
- F. Hoffman-La Roche Ltd., pRED, Pharma Research & Early Development, Roche Innovation Center Basel, Grenzacherstrasse 124, 4070 Basel, Switzerland
| | - John A Murphy
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1 XL, United Kingdom
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168
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Zhang XY, Weng WZ, Liang H, Yang H, Zhang B. Visible-Light-Initiated, Photocatalyst-Free Decarboxylative Coupling of Carboxylic Acids with N-Heterocycles. Org Lett 2018; 20:4686-4690. [DOI: 10.1021/acs.orglett.8b02016] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiao-Yu Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Wei-Zhi Weng
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Hao Liang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Hua Yang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Bo Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
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169
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Garza-Sanchez RA, Patra T, Tlahuext-Aca A, Strieth-Kalthoff F, Glorius F. DMSO as a Switchable Alkylating Agent in Heteroarene C-H Functionalization. Chemistry 2018; 24:10064-10068. [PMID: 29750378 DOI: 10.1002/chem.201802352] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Indexed: 01/24/2023]
Abstract
Herein, we report a novel strategy for the activation of DMSO to act as a versatile alkylating agent in heteroarene C-H functionalization. This direct, simple, and mild switch between methylation/trideuteromethylation and methylthiomethylation of heteroarenes was achieved under reagent-controlled photoredox catalysis conditions. The proposed mechanism is supported by both experimental and computational studies.
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Affiliation(s)
- R Aleyda Garza-Sanchez
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Tuhin Patra
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Adrian Tlahuext-Aca
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Felix Strieth-Kalthoff
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
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170
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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: 506] [Impact Index Per Article: 84.3] [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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171
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Phelan JP, Lang SB, Compton JS, Kelly CB, Dykstra R, Gutierrez O, Molander GA. Redox-Neutral Photocatalytic Cyclopropanation via Radical/Polar Crossover. J Am Chem Soc 2018; 140:8037-8047. [PMID: 29916711 DOI: 10.1021/jacs.8b05243] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A benchtop stable, bifunctional reagent for the redox-neutral cyclopropanation of olefins has been developed. Triethylammonium bis(catecholato)iodomethylsilicate can be readily prepared on multigram scale. Using this reagent in combination with an organic photocatalyst and visible light, cyclopropanation of an array of olefins, including trifluoromethyl- and pinacolatoboryl-substituted alkenes, can be accomplished in a matter of hours. The reaction is highly tolerant of traditionally reactive functional groups (carboxylic acids, basic heterocycles, alkyl halides, etc.) and permits the chemoselective cyclopropanation of polyolefinated compounds. Mechanistic interrogation revealed that the reaction proceeds via a rapid anionic 3- exo- tet ring closure, a pathway consistent with experimental and computational data.
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Affiliation(s)
- James P Phelan
- Roy and Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Simon B Lang
- Roy and Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Jordan S Compton
- Roy and Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Christopher B Kelly
- Roy and Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Ryan Dykstra
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Osvaldo Gutierrez
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Gary A Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , United States
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172
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Sun AC, McClain EJ, Beatty JW, Stephenson CR. Visible Light-Mediated Decarboxylative Alkylation of Pharmaceutically Relevant Heterocycles. Org Lett 2018; 20:3487-3490. [PMID: 29856641 PMCID: PMC6014829 DOI: 10.1021/acs.orglett.8b01250] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A net redox-neutral method for the decarboxylative alkylation of heteroarenes using photoredox catalysis is reported. Additionally, this method features the use of simple, commercially available carboxylic acid derivatives as alkylating agents, enabling the facile alkylation of a variety of biologically relevant heterocyclic scaffolds under mild conditions.
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Affiliation(s)
- Alexandra C. Sun
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 North University Ave., Ann Arbor, MI 48109, United States
| | - Edward J. McClain
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 North University Ave., Ann Arbor, MI 48109, United States
| | - Joel W. Beatty
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 North University Ave., Ann Arbor, MI 48109, United States
| | - Corey R.J. Stephenson
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 North University Ave., Ann Arbor, MI 48109, United States
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173
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Zhang H, Lei A. Visible-Light-Induced C−H Functionalization and C−C/C−X Bond-Forming Oxidative Cross-Coupling Reactions. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800214] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Heng Zhang
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan Hubei 430072 P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan Hubei 430072 P. R. China
- State Key Laboratory and Institute of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
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174
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Genovino J, Lian Y, Zhang Y, Hope TO, Juneau A, Gagné Y, Ingle G, Frenette M. Metal-Free-Visible Light C–H Alkylation of Heteroaromatics via Hypervalent Iodine-Promoted Decarboxylation. Org Lett 2018; 20:3229-3232. [DOI: 10.1021/acs.orglett.8b01085] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julien Genovino
- Pfizer Worldwide Medicinal Chemistry, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Yajing Lian
- Pfizer Worldwide Medicinal Chemistry, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Yuan Zhang
- Pfizer Worldwide Medicinal Chemistry, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Taylor O. Hope
- Département de Chimie, Université du Québec à Montréal, Case Postale 8888, Succursale Centre-Ville, Montréal, Québec, H3C 3P8, Canada
| | - Antoine Juneau
- Département de Chimie, Université du Québec à Montréal, Case Postale 8888, Succursale Centre-Ville, Montréal, Québec, H3C 3P8, Canada
| | - Yohann Gagné
- Département de Chimie, Université du Québec à Montréal, Case Postale 8888, Succursale Centre-Ville, Montréal, Québec, H3C 3P8, Canada
| | - Gajendra Ingle
- Pfizer Worldwide Medicinal Chemistry, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Mathieu Frenette
- Département de Chimie, Université du Québec à Montréal, Case Postale 8888, Succursale Centre-Ville, Montréal, Québec, H3C 3P8, Canada
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175
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Xue F, Wang F, Liu J, Di J, Liao Q, Lu H, Zhu M, He L, He H, Zhang D, Song H, Liu XY, Qin Y. A Desulfurative Strategy for the Generation of Alkyl Radicals Enabled by Visible-Light Photoredox Catalysis. Angew Chem Int Ed Engl 2018; 57:6667-6671. [PMID: 29671934 DOI: 10.1002/anie.201802710] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Indexed: 01/25/2023]
Abstract
Herein, we present a new desulfurative method for generating primary, secondary, and tertiary alkyl radicals through visible-light photoredox catalysis. A process that involves the generation of N-centered radicals from sulfinamide intermediates, followed by subsequent fragmentation, is critical to forming the corresponding alkyl radical species. This strategy has been successfully applied to conjugate addition reactions that features mild reaction conditions, broad substrate scope (>60 examples), and good functional-group tolerance.
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Affiliation(s)
- Fei Xue
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Falu Wang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Jiazhen Liu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Jiamei Di
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Qi Liao
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Huifang Lu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Min Zhu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Liping He
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Huan He
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Dan Zhang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Hao Song
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Xiao-Yu Liu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Yong Qin
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
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176
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Xue F, Wang F, Liu J, Di J, Liao Q, Lu H, Zhu M, He L, He H, Zhang D, Song H, Liu X, Qin Y. A Desulfurative Strategy for the Generation of Alkyl Radicals Enabled by Visible‐Light Photoredox Catalysis. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802710] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Fei Xue
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Falu Wang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Jiazhen Liu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Jiamei Di
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Qi Liao
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Huifang Lu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Min Zhu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Liping He
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Huan He
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Dan Zhang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Hao Song
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Xiao‐Yu Liu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Yong Qin
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of EducationSichuan Research Center of Precision Engineering Technology for Small Molecule DrugsWest China School of PharmacySichuan University Chengdu 610041 P. R. China
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177
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Proctor RSJ, Davis HJ, Phipps RJ. Catalytic enantioselective Minisci-type addition to heteroarenes. Science 2018; 360:419-422. [DOI: 10.1126/science.aar6376] [Citation(s) in RCA: 288] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 02/28/2018] [Indexed: 12/31/2022]
Abstract
Basic heteroarenes are a ubiquitous feature of pharmaceuticals and bioactive molecules, and Minisci-type additions of radical nucleophiles are a leading method for their elaboration. Despite many Minisci-type protocols that result in the formation of stereocenters, exerting control over the absolute stereochemistry at these centers remains an unmet challenge. We report a process for addition of prochiral radicals, generated from amino acid derivatives, to pyridines and quinolines. Our method offers excellent control of both enantioselectivity and regioselectivity. An enantiopure chiral Brønsted acid catalyst serves both to activate the substrate and induce asymmetry, while an iridium photocatalyst mediates the required electron transfer processes. We anticipate that this method will expedite access to enantioenriched small-molecule building blocks bearing versatile basic heterocycles.
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Affiliation(s)
| | - Holly J. Davis
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK
| | - Robert J. Phipps
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK
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178
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Zhou W, Miura T, Murakami M. Photocatalyzed ortho-Alkylation of Pyridine N-Oxides through Alkene Cleavage. Angew Chem Int Ed Engl 2018; 57:5139-5142. [PMID: 29508912 DOI: 10.1002/anie.201801305] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 02/23/2018] [Indexed: 11/09/2022]
Abstract
A photocatalyzed reaction of pyridine N-oxides with alkenes gives ortho-alkylated pyridines with cleavage of the carbon-carbon double bond. Benzyl and secondary alkyl groups are incorporated at the ortho position of pyridines in one pot.
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Affiliation(s)
- Wang Zhou
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
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179
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Zhou W, Miura T, Murakami M. Photocatalyzed
ortho
‐Alkylation of Pyridine
N
‐Oxides through Alkene Cleavage. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801305] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wang Zhou
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
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180
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Affiliation(s)
- Simon J. S. Düsel
- Faculty of Chemistry and
Pharmacy, University of Regensburg, D-93040 Regensburg, Germany
| | - Burkhard König
- Faculty of Chemistry and
Pharmacy, University of Regensburg, D-93040 Regensburg, Germany
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181
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Sherwood TC, Li N, Yazdani AN, Dhar TGM. Organocatalyzed, Visible-Light Photoredox-Mediated, One-Pot Minisci Reaction Using Carboxylic Acids via N-(Acyloxy)phthalimides. J Org Chem 2018; 83:3000-3012. [PMID: 29420898 DOI: 10.1021/acs.joc.8b00205] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An improved, one-pot Minisci reaction has been developed using visible light, an organic photocatalyst, and carboxylic acids as radical precursors via the intermediacy of in situ-generated N-(acyloxy)phthalimides. The conditions employed are mild, demonstrate a high degree of functional group tolerance, and do not require a large excess of the carboxylic acid reactant. As a result, this reaction can be applied to drug-like scaffolds and molecules with sensitive functional groups, enabling late-stage functionalization, which is of high interest to medicinal chemistry.
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Affiliation(s)
- Trevor C Sherwood
- Research and Development, Bristol-Myers Squibb Company , P.O. Box 4000, Princeton, New Jersey 08543-4000 United States
| | - Ning Li
- Research and Development, Bristol-Myers Squibb Company , P.O. Box 4000, Princeton, New Jersey 08543-4000 United States
| | - Aliza N Yazdani
- Research and Development, Bristol-Myers Squibb Company , P.O. Box 4000, Princeton, New Jersey 08543-4000 United States
| | - T G Murali Dhar
- Research and Development, Bristol-Myers Squibb Company , P.O. Box 4000, Princeton, New Jersey 08543-4000 United States
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182
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Nikolaev A, Legault CY, Zhang M, Orellana A. The Acid-Free Cyclopropanol-Minisci Reaction Reveals the Catalytic Role of Silver–Pyridine Complexes. Org Lett 2018; 20:796-799. [DOI: 10.1021/acs.orglett.7b03938] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Andrei Nikolaev
- Department
of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Claude Y. Legault
- Department
of Chemistry, University of Sherbrooke, 2500 Boulevard de l’Universite, Sherbrooke, Québec J1K 2R1, Canada
| | - Minhao Zhang
- Department
of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Arturo Orellana
- Department
of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
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183
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Lennox AJJ, Nutting JE, Stahl SS. Selective electrochemical generation of benzylic radicals enabled by ferrocene-based electron-transfer mediators. Chem Sci 2018; 9:356-361. [PMID: 29732109 PMCID: PMC5909123 DOI: 10.1039/c7sc04032f] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 10/25/2017] [Indexed: 11/25/2022] Open
Abstract
The generation and intermolecular functionalisation of carbon-centred radicals has broad potential synthetic utility. Herein, we show that benzylic radicals may be generated electrochemically from benzylboronate derivatives at low electrode potentials (ca. -0.3 V vs. Cp2Fe0/+) via single electron oxidation. Use of a catalytic quantity of a ferrocene-based electron-transfer mediator is crucial to achieve successful radical functionalisation and avoid undesirable side reactions arising from direct electrochemical oxidation or from the use of stoichiometric ferrocenium-based oxidants.
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Affiliation(s)
- Alastair J J Lennox
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , USA .
| | - Jordan E Nutting
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , USA .
| | - Shannon S Stahl
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , USA .
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184
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Dai W, Lin Y, Wan Y, Cao S. Cu-Catalyzed tertiary alkylation of α-(trifluoromethyl)styrenes with tertiary alkylmagnesium reagents. Org Chem Front 2018. [DOI: 10.1039/c7qo00716g] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for the synthesis of 3-tertiary alkylated 1,1-difluorostyrene derivatives via Cu-catalyzed alkylation of α-(trifluoromethyl)styrenes with tertiary alkylmagnesium reagents at room temperature was developed.
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Affiliation(s)
- Wenpeng Dai
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Yingyin Lin
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Yan Wan
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Song Cao
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
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185
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Yang D, Li G, Xing C, Cui W, Li K, Wei W. Metal- and photocatalyst-free visible-light-promoted regioselective selenylation of coumarin derivatives via oxidation-induced C–H functionalization. Org Chem Front 2018. [DOI: 10.1039/c8qo00899j] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A visible-light-promoted approach for the regioselective selenylation of 4-amino substituted coumarins has been initially realized under metal- and photocatalyst-free conditions at room temperature.
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Affiliation(s)
- Daoshan Yang
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Guoqing Li
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Chengyu Xing
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Wenwen Cui
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Kexin Li
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Wei Wei
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
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186
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Di J, He H, Wang F, Xue F, Liu XY, Qin Y. Regiospecific alkyl addition of (hetero)arene-fused thiophenes enabled by a visible-light-mediated photocatalytic desulfuration approach. Chem Commun (Camb) 2018; 54:4692-4695. [PMID: 29676430 DOI: 10.1039/c8cc02052c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A unique photoredox desulfuration approach enabling the regiospecific alkyl addition of (hetero)arene-fused thiophenes is presented.
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Affiliation(s)
- Jiamei Di
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Huan He
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Falu Wang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Fei Xue
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Xiao-Yu Liu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Yong Qin
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
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187
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Zhang L, Liu ZQ. Molecular Oxygen-Mediated Minisci-Type Radical Alkylation of Heteroarenes with Boronic Acids. Org Lett 2017; 19:6594-6597. [DOI: 10.1021/acs.orglett.7b03297] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Lizhi Zhang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zhong-Quan Liu
- State
Key Laboratory Cultivation Base for TCM Quality and Efficacy, College
of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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188
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Liang B, Wang Q, Liu ZQ. A Fe(III)/NaBH4-Promoted Free-Radical Hydroheteroarylation of Alkenes. Org Lett 2017; 19:6463-6465. [DOI: 10.1021/acs.orglett.7b03313] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Bingyu Liang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Qinglong Wang
- Henan University of Animal Husbandry and Economy, Zhengzhou 450011, China
| | - Zhong-Quan Liu
- State
Key Laboratory Cultivation Base for TCM Quality and Efficacy, College
of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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189
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Ryzhakov D, Jarret M, Guillot R, Kouklovsky C, Vincent G. Radical-Mediated Dearomatization of Indoles with Sulfinate Reagents for the Synthesis of Fluorinated Spirocyclic Indolines. Org Lett 2017; 19:6336-6339. [DOI: 10.1021/acs.orglett.7b03155] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Dmytro Ryzhakov
- Institut de Chimie Moléculaire
et des Matériaux d’Orsay (ICMMO), Equipe Méthodologie,
Synthèse et Molécules Thérapeutiques, Univ. Paris
Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clemenceau, 91405 Orsay, Cedex, France
| | - Maxime Jarret
- Institut de Chimie Moléculaire
et des Matériaux d’Orsay (ICMMO), Equipe Méthodologie,
Synthèse et Molécules Thérapeutiques, Univ. Paris
Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clemenceau, 91405 Orsay, Cedex, France
| | - Régis Guillot
- Institut de Chimie Moléculaire
et des Matériaux d’Orsay (ICMMO), Equipe Méthodologie,
Synthèse et Molécules Thérapeutiques, Univ. Paris
Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clemenceau, 91405 Orsay, Cedex, France
| | - Cyrille Kouklovsky
- Institut de Chimie Moléculaire
et des Matériaux d’Orsay (ICMMO), Equipe Méthodologie,
Synthèse et Molécules Thérapeutiques, Univ. Paris
Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clemenceau, 91405 Orsay, Cedex, France
| | - Guillaume Vincent
- Institut de Chimie Moléculaire
et des Matériaux d’Orsay (ICMMO), Equipe Méthodologie,
Synthèse et Molécules Thérapeutiques, Univ. Paris
Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clemenceau, 91405 Orsay, Cedex, France
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190
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McCallum T, Pitre SP, Morin M, Scaiano JC, Barriault L. The photochemical alkylation and reduction of heteroarenes. Chem Sci 2017; 8:7412-7418. [PMID: 29163892 PMCID: PMC5674141 DOI: 10.1039/c7sc03768f] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 09/09/2017] [Indexed: 01/14/2023] Open
Abstract
The functionalization of heteroarenes has been integral to the structural diversification of medicinally active molecules such as quinolines, pyridines, and phenanthridines. Electron-deficient heteroarenes are electronically compatible to react with relatively nucleophilic free radicals such as hydroxyalkyl. However, the radical functionalization of such heteroarenes has been marked by the use of transition-metal catalyzed processes that require initiators and stoichiometric oxidants. Herein, we describe the photochemical alkylation of quinolines, pyridines and phenanthridines, where through direct excitation of the protonated heterocycle, alcohols and ethers, such as methanol and THF, can serve as alkylating agents. We also report the discovery of a photochemical reduction of these heteroarenes using only iPrOH and HCl. Mechanistic studies to elucidate the underlying mechanism of these transformations, and preliminary results on catalytic methylations are also reported.
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Affiliation(s)
- T McCallum
- Centre for Catalysis , Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie Curie , Ottawa , ON K1N 6N5 , Canada . ;
| | - S P Pitre
- Centre for Catalysis , Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie Curie , Ottawa , ON K1N 6N5 , Canada . ;
| | - M Morin
- Centre for Catalysis , Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie Curie , Ottawa , ON K1N 6N5 , Canada . ;
| | - J C Scaiano
- Centre for Catalysis , Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie Curie , Ottawa , ON K1N 6N5 , Canada . ;
| | - L Barriault
- Centre for Catalysis , Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie Curie , Ottawa , ON K1N 6N5 , Canada . ;
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191
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Nuhant P, Oderinde MS, Genovino J, Juneau A, Gagné Y, Allais C, Chinigo GM, Choi C, Sach NW, Bernier L, Fobian YM, Bundesmann MW, Khunte B, Frenette M, Fadeyi OO. Visible-Light-Initiated Manganese Catalysis for C−H Alkylation of Heteroarenes: Applications and Mechanistic Studies. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707958] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Philippe Nuhant
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Martins S. Oderinde
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Julien Genovino
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Antoine Juneau
- Department de Chimie; Université du Québec á Montréal; Case Postale 8888, Succursale Centre-Ville Montréal Quebec H3C 3P8 Canada
| | - Yohann Gagné
- Department de Chimie; Université du Québec á Montréal; Case Postale 8888, Succursale Centre-Ville Montréal Quebec H3C 3P8 Canada
| | - Christophe Allais
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Gary M. Chinigo
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Chulho Choi
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Neal W. Sach
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Louise Bernier
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Yvette M. Fobian
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Mark W. Bundesmann
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Bhagyashree Khunte
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Mathieu Frenette
- Department de Chimie; Université du Québec á Montréal; Case Postale 8888, Succursale Centre-Ville Montréal Quebec H3C 3P8 Canada
| | - Olugbeminiyi O. Fadeyi
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
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192
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Nuhant P, Oderinde MS, Genovino J, Juneau A, Gagné Y, Allais C, Chinigo GM, Choi C, Sach NW, Bernier L, Fobian YM, Bundesmann MW, Khunte B, Frenette M, Fadeyi OO. Visible-Light-Initiated Manganese Catalysis for C−H Alkylation of Heteroarenes: Applications and Mechanistic Studies. Angew Chem Int Ed Engl 2017; 56:15309-15313. [DOI: 10.1002/anie.201707958] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/01/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Philippe Nuhant
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Martins S. Oderinde
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Julien Genovino
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Antoine Juneau
- Department de Chimie; Université du Québec á Montréal; Case Postale 8888, Succursale Centre-Ville Montréal Quebec H3C 3P8 Canada
| | - Yohann Gagné
- Department de Chimie; Université du Québec á Montréal; Case Postale 8888, Succursale Centre-Ville Montréal Quebec H3C 3P8 Canada
| | - Christophe Allais
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Gary M. Chinigo
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Chulho Choi
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Neal W. Sach
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Louise Bernier
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Yvette M. Fobian
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Mark W. Bundesmann
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Bhagyashree Khunte
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
| | - Mathieu Frenette
- Department de Chimie; Université du Québec á Montréal; Case Postale 8888, Succursale Centre-Ville Montréal Quebec H3C 3P8 Canada
| | - Olugbeminiyi O. Fadeyi
- Pfizer Medicine Design & Oncology Medicinal Chemistry; 445 Eastern Point Road Groton CT 06340 USA
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193
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Galloway JD, Mai DN, Baxter RD. Silver-Catalyzed Minisci Reactions Using Selectfluor as a Mild Oxidant. Org Lett 2017; 19:5772-5775. [DOI: 10.1021/acs.orglett.7b02706] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Jordan D. Galloway
- Department of Chemistry,
Chemical Biology, University of California, 5200 North Lake Road, Merced, California 95343, United States
| | - Duy N. Mai
- Department of Chemistry,
Chemical Biology, University of California, 5200 North Lake Road, Merced, California 95343, United States
| | - Ryan D. Baxter
- Department of Chemistry,
Chemical Biology, University of California, 5200 North Lake Road, Merced, California 95343, United States
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194
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Pothikumar R, Sujatha C, Namitharan K. Transition-Metal-Free In Situ Generation of Terminal Alkenes: Synthesis of Multisubstituted Acrylamidines via Tandem sp3 C–H Olefination/sp2 C–H Arylation Reactions. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02819] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rajagopal Pothikumar
- Organic
Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University, Chennai 603203, India
| | - Chandragiri Sujatha
- Organic
Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University, Chennai 603203, India
| | - Kayambu Namitharan
- Organic
Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University, Chennai 603203, India
- Department
of Chemistry, SRM University-AP, Amaravati 522502, India
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195
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Wang QQ, Xu K, Jiang YY, Liu YG, Sun BG, Zeng CC. Electrocatalytic Minisci Acylation Reaction of N-Heteroarenes Mediated by NH4I. Org Lett 2017; 19:5517-5520. [DOI: 10.1021/acs.orglett.7b02589] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qing-Qing Wang
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Life Science & Bioengineering, Beijing University of Technology, Beijing 100124, China
| | - Kun Xu
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Life Science & Bioengineering, Beijing University of Technology, Beijing 100124, China
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, China
| | - Yang-Ye Jiang
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Life Science & Bioengineering, Beijing University of Technology, Beijing 100124, China
| | - Yong-Guo Liu
- Beijing
Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Bao-Guo Sun
- Beijing
Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Cheng-Chu Zeng
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Life Science & Bioengineering, Beijing University of Technology, Beijing 100124, China
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196
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Liu P, Liu W, Li CJ. Catalyst-Free and Redox-Neutral Innate Trifluoromethylation and Alkylation of Aromatics Enabled by Light. J Am Chem Soc 2017; 139:14315-14321. [DOI: 10.1021/jacs.7b08685] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Peng Liu
- Department
of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada
- Ministry
of Education Key laboratory of Combinatorial Biosynthesis and Drug
Discovery, Hubei Provincial Engineering and Technology Research Center
for Fluorinated Pharmaceuticals, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Wenbo Liu
- Department
of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada
| | - Chao-Jun Li
- Department
of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada
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197
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Liu Z, Liu ZQ. An Intermolecular Azidoheteroarylation of Simple Alkenes via Free-Radical Multicomponent Cascade Reactions. Org Lett 2017; 19:5649-5652. [DOI: 10.1021/acs.orglett.7b02788] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zhi Liu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zhong-Quan Liu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
- State
Key Laboratory Cultivation Base for TCM Quality and Efficacy, College
of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
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198
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Gutiérrez-Bonet Á, Remeur C, Matsui JK, Molander GA. Late-Stage C-H Alkylation of Heterocycles and 1,4-Quinones via Oxidative Homolysis of 1,4-Dihydropyridines. J Am Chem Soc 2017; 139:12251-12258. [PMID: 28832137 PMCID: PMC5599171 DOI: 10.1021/jacs.7b05899] [Citation(s) in RCA: 201] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Under oxidative conditions, 1,4-dihydropyridines (DHPs) undergo a homolytic cleavage, forming exclusively a Csp3-centered radical that can engage in the C-H alkylation of heterocyclic bases and 1,4-quinones. DHPs are readily prepared from aldehydes, and considering that aldehydes normally require harsh reaction conditions to take part in such transformations, with mixtures of alkylated and acylated products often being obtained, this net decarbonylative alkylation approach becomes particularly useful. The present method takes place under mild reaction conditions and requires only persulfate as a stoichiometric oxidant, making the procedure suitable for the late-stage C-H alkylation of complex molecules. Notably, structurally complex pharmaceutical agents could be functionalized or prepared with this protocol, such as the antimalarial Atovaquone and antitheilerial Parvaquone, thus evidencing its applicability. Mechanistic studies revealed a likely radical chain process via the formation of a dearomatized intermediate, providing a deeper understanding of the factors governing the reactivity of these radical forebears.
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Affiliation(s)
| | | | - Jennifer K. Matsui
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Gary A. Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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199
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Klauck FJR, James MJ, Glorius F. Deaminative Strategy for the Visible-Light-Mediated Generation of Alkyl Radicals. Angew Chem Int Ed Engl 2017; 56:12336-12339. [PMID: 28762257 DOI: 10.1002/anie.201706896] [Citation(s) in RCA: 253] [Impact Index Per Article: 36.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Indexed: 12/27/2022]
Abstract
A deaminative strategy for the visible-light-mediated generation of alkyl radicals from redox-activated primary amine precursors is described. Abundant and inexpensive primary amine feedstocks, including amino acids, were converted in a single step into redox-active pyridinium salts and subsequently into alkyl radicals by reaction with an excited-state photocatalyst. The broad synthetic potential of this protocol was demonstrated by the alkylation of a number of heteroarenes under mild conditions.
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Affiliation(s)
- Felix J R Klauck
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Michael J James
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
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200
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Klauck FJR, James MJ, Glorius F. Durch sichtbares Licht vermittelte Deaminierung zur Erzeugung von Alkylradikalen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706896] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Felix J. R. Klauck
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Michael J. James
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
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