151
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Chen J, Mei L, Liu J, Zhong C, Yuan B, Li Q. Microwave-assisted iodine-catalyzed oxidative coupling of dibenzyl(difurfuryl)disulfides with amines: a rapid and efficient protocol for thioamides. RSC Adv 2019; 9:28576-28580. [PMID: 35529638 PMCID: PMC9070997 DOI: 10.1039/c9ra05939c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 09/03/2019] [Indexed: 12/12/2022] Open
Abstract
An efficient protocol for synthesis of thioamides was developed via the microwave-assisted iodine-catalyzed oxidative coupling of dibenzyl(difurfuryl)disulfides with amines. This process is scalable and tolerates a wide spectrum of amines to deliver the corresponding products in moderate to excellent yields in 10 minutes, providing a cheap and rapid approach to thioamides.
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Affiliation(s)
- Jinyang Chen
- College of Chemistry and Chemical Engineering, Yangtze Normal University Fuling Chongqing 408000 P. R. China
| | - Lan Mei
- College of Chemistry and Chemical Engineering, Yangtze Normal University Fuling Chongqing 408000 P. R. China
| | - Jialing Liu
- College of Chemistry and Chemical Engineering, Yangtze Normal University Fuling Chongqing 408000 P. R. China
| | - Chuntao Zhong
- College of Chemistry and Chemical Engineering, Yangtze Normal University Fuling Chongqing 408000 P. R. China
| | - Binfang Yuan
- College of Chemistry and Chemical Engineering, Yangtze Normal University Fuling Chongqing 408000 P. R. China
| | - Qiang Li
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University No. 1, Hunan Street Liaocheng Shandong 252059 P. R. China
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152
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Jin S, Chen Z, Zhao Y. Thiocarbamate‐Directed
ortho
C−H Bond Alkylation with Diazo Compounds. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900804] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shengnan Jin
- College of Material Sciences EngineeringHuaqiao University 668 Jimei Boulevard Xiamen 361021 People's Republic of China
| | - Zhan Chen
- College of Chemical EngineeringHuaqiao University 668 Jimei Boulevard Xiamen 361021 People's Republic of China
| | - Yingwei Zhao
- College of Chemical EngineeringHuaqiao University 668 Jimei Boulevard Xiamen 361021 People's Republic of China
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153
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Maity S, Potter TJ, Ellman JA. α-Branched amines by catalytic 1,1-addition of C-H bonds and aminating agents to terminal alkenes. Nat Catal 2019; 2:756-762. [PMID: 32879907 PMCID: PMC7462361 DOI: 10.1038/s41929-019-0330-7] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 06/25/2019] [Indexed: 12/31/2022]
Abstract
α-Branched amines are present in hundreds of pharmaceutical agents and clinical candidates and are important targets for synthesis. Here we show the convergent synthesis of α-branched amines from three readily accessible starting materials: aromatic C-H bond substrates, terminal alkenes, and aminating agents. This reaction proceeds by an intermolecular formation of C-C and C-N bonds at the sp 3 carbon branch site through an uncommon 1,1-alkene addition pathway. The reaction is carried out under mild conditions and has high functional group compatibility. Ethylene and propylene feedstock chemicals are effective alkene inputs with ethylene in particular providing for the one step synthesis of α-methyl branched amines, a motif prevalent in drug structures. The reaction is scalable, and 1% loading of an air stable dimeric rhodium precatalyst is effective for several different types of products. The use of chiral catalysts also enables the asymmetric synthesis of α-branched amines.
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Affiliation(s)
- Soham Maity
- Department of Chemistry, Yale University, New Haven, CT, USA
| | - Tyler J Potter
- Department of Chemistry, Yale University, New Haven, CT, USA
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154
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Yan K, Kong Y, Li B, Wang B. Sulfhydryl-Directed Iridium-Catalyzed C-H/Diazo Coupling and Tandem Annulation of Naphthalene-1-thiols. Org Lett 2019; 21:7000-7003. [PMID: 31436429 DOI: 10.1021/acs.orglett.9b02581] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The first sulfhydryl-directed iridium-catalyzed C-H/diazo coupling and tandem annulation of naphthalene-1-thiols has been developed. The framework of naphtho[1,8-bc]thiopyrans was constructed in a one-step reaction with good yields. This transformation provides a practical synthetic route for the widely used naphtho[1,8-bc]thiopyran derivatives.
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Affiliation(s)
- Kelu Yan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Yong Kong
- SINOPEC Research Institute of Petroleum Engineering, Beijing 100101, People's Republic of China
| | - Bin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Baiquan Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China
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155
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Sekine D, Ikeda K, Fukagawa S, Kojima M, Yoshino T, Matsunaga S. Chiral 2-Aryl Ferrocene Carboxylic Acids for the Catalytic Asymmetric C(sp3)–H Activation of Thioamides. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00407] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Daichi Sekine
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Kazuki Ikeda
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Seiya Fukagawa
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Masahiro Kojima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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156
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Chu X, Ge D, Wang M, Rao W, Loh T, Shen Z. Chemo‐ and Regioselective Ring Construction Driven by Visible‐Light Photoredox Catalysis: an Access to Fluoroalkylated Oxazolidines Featuring an All‐Substituted Carbon Stereocenter. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900585] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xue‐Qiang Chu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 People's Republic of China
| | - Danhua Ge
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 People's Republic of China
| | - Mao‐Lin Wang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 People's Republic of China
| | - Weidong Rao
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Teck‐Peng Loh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 People's Republic of China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Zhi‐Liang Shen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 People's Republic of China
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157
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Reidl TW, Anderson LL. Divergent Functionalizations of Azetidines and Unsaturated Azetidines. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900229] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tyler W. Reidl
- Department of ChemistryUniversity of Illinois at Chicago 845 W. Taylor St. Chicago, IL USA
| | - Laura L. Anderson
- Department of ChemistryUniversity of Illinois at Chicago 845 W. Taylor St. Chicago, IL USA
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158
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Andrä MS, Schifferer L, Pollok CH, Merten C, Gooßen LJ, Yu JQ. Enantio- and Diastereoswitchable C-H Arylation of Methylene Groups in Cycloalkanes. Chemistry 2019; 25:8503-8507. [PMID: 31062889 DOI: 10.1002/chem.201902046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Indexed: 12/20/2022]
Abstract
A complementary set of chiral N,N-ligands enables the Pd-catalyzed β-C-H arylation of unbiased internal methylene groups in good yield and with high levels of enantio- and diastereoinduction. Both the dia- and enantioselectivity can be reversed, thus allowing the selective arylation of any of the four β-C-H bonds in cycloalkanecarboxamides of various ring sizes. The method is applicable to a broad range of aryl iodides with electron-withdrawing and -donating substituents in the o-, m-, or p-position.
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Affiliation(s)
- Michal S Andrä
- ZEMOS, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany.,Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, California, 92037, USA
| | - Lukas Schifferer
- ZEMOS, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Corina H Pollok
- ZEMOS, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Christian Merten
- ZEMOS, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Lukas J Gooßen
- ZEMOS, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, California, 92037, USA
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159
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Li Z, Lin ZQ, Yan CG, Duan WL. Pd-Catalyzed Asymmetric C–H Bond Activation for the Synthesis of P-Stereogenic Dibenzophospholes. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00216] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Zhen Li
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, People’s Republic of China
| | - Zi-Qi Lin
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, People’s Republic of China
| | - Wei-Liang Duan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, People’s Republic of China
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160
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Paul A, Seidel D. α-Functionalization of Cyclic Secondary Amines: Lewis Acid Promoted Addition of Organometallics to Transient Imines. J Am Chem Soc 2019; 141:8778-8782. [PMID: 31117670 DOI: 10.1021/jacs.9b04325] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cyclic imines, generated in situ from their corresponding N-lithiated amines and a ketone hydride acceptor, undergo reactions with a range of organometallic nucleophiles to generate α-functionalized amines in a single operation. Activation of the transient imines by Lewis acids that are compatible with the presence of lithium alkoxides was found to be crucial to accommodate a broad range of nucleophiles including lithium acetylides, Grignard reagents, and aryllithiums with attenuated reactivities.
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Affiliation(s)
- Anirudra Paul
- Center for Heterocyclic Compounds, Department of Chemistry , University of Florida , Gainesville , Florida 32611 , United States
| | - Daniel Seidel
- Center for Heterocyclic Compounds, Department of Chemistry , University of Florida , Gainesville , Florida 32611 , United States
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161
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Luo J, Zhang T, Wang L, Liao G, Yao Q, Wu Y, Zhan B, Lan Y, Lin X, Shi B. Enantioselective Synthesis of Biaryl Atropisomers by Pd‐Catalyzed C−H Olefination using Chiral Spiro Phosphoric Acid Ligands. Angew Chem Int Ed Engl 2019; 58:6708-6712. [DOI: 10.1002/anie.201902126] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Jun Luo
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Tao Zhang
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 China
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 P. R. China
| | - Lei Wang
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Gang Liao
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Qi‐Jun Yao
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Yong‐Jie Wu
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Bei‐Bei Zhan
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Yu Lan
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 China
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 P. R. China
| | - Xu‐Feng Lin
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Bing‐Feng Shi
- Department of ChemistryZhejiang University Hangzhou 310027 China
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162
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Liu YJ, Ge J, Miao CB, Yang HT. Copper-Catalyzed Reaction of C60 with Tertiary Amines for the Preparation of Spiro-Linked Methanofullerenes and Fullerenoalkanals. J Org Chem 2019; 84:6134-6142. [DOI: 10.1021/acs.joc.9b00335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yong-Jian Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jie Ge
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Chun-Bao Miao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Hai-Tao Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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163
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164
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Shang M, Feu KS, Vantourout JC, Barton LM, Osswald HL, Kato N, Gagaring K, McNamara CW, Chen G, Hu L, Ni S, Fernández-Canelas P, Chen M, Merchant RR, Qin T, Schreiber SL, Melillo B, Yu JQ, Baran PS. Modular, stereocontrolled C β-H/C α-C activation of alkyl carboxylic acids. Proc Natl Acad Sci U S A 2019; 116:8721-8727. [PMID: 30996125 PMCID: PMC6500144 DOI: 10.1073/pnas.1903048116] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The union of two powerful transformations, directed C-H activation and decarboxylative cross-coupling, for the enantioselective synthesis of vicinally functionalized alkyl, carbocyclic, and heterocyclic compounds is described. Starting from simple carboxylic acid building blocks, this modular sequence exploits the residual directing group to access more than 50 scaffolds that would be otherwise extremely difficult to prepare. The tactical use of these two transformations accomplishes a formal vicinal difunctionalization of carbon centers in a way that is modular and thus, amenable to rapid diversity incorporation. A simplification of routes to known preclinical drug candidates is presented along with the rapid diversification of an antimalarial compound series.
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Affiliation(s)
- Ming Shang
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - Karla S Feu
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | | | - Lisa M Barton
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - Heather L Osswald
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - Nobutaka Kato
- Chemical Biology and Therapeutics Science Program, Broad Institute, Cambridge, MA 02142
| | - Kerstin Gagaring
- Biology Department, Calibr at The Scripps Research Institute, La Jolla, CA 92037
| | - Case W McNamara
- Biology Department, Calibr at The Scripps Research Institute, La Jolla, CA 92037
| | - Gang Chen
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - Liang Hu
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - Shengyang Ni
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | | | - Miao Chen
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - Rohan R Merchant
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - Tian Qin
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - Stuart L Schreiber
- Chemical Biology and Therapeutics Science Program, Broad Institute, Cambridge, MA 02142
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138
| | - Bruno Melillo
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037;
- Chemical Biology and Therapeutics Science Program, Broad Institute, Cambridge, MA 02142
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037;
| | - Phil S Baran
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037;
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165
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Luo J, Zhang T, Wang L, Liao G, Yao Q, Wu Y, Zhan B, Lan Y, Lin X, Shi B. Enantioselective Synthesis of Biaryl Atropisomers by Pd‐Catalyzed C−H Olefination using Chiral Spiro Phosphoric Acid Ligands. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902126] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Jun Luo
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Tao Zhang
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 China
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 P. R. China
| | - Lei Wang
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Gang Liao
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Qi‐Jun Yao
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Yong‐Jie Wu
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Bei‐Bei Zhan
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Yu Lan
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 China
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 P. R. China
| | - Xu‐Feng Lin
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Bing‐Feng Shi
- Department of ChemistryZhejiang University Hangzhou 310027 China
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166
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Shi H, Dixon DJ. Dithiane-directed Rh(iii)-catalyzed amidation of unactivated C(sp 3)-H bonds. Chem Sci 2019; 10:3733-3737. [PMID: 31015917 PMCID: PMC6457195 DOI: 10.1039/c8sc05225e] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 02/18/2019] [Indexed: 11/21/2022] Open
Abstract
An oxidant-free Rh(iii)-catalyzed direct amidation of alkyl dithianes via C(sp3)-H bond activation utilizing diverse and robust dioxazolone reagents is reported. The reaction hinges on use of a Cp*Rh(iii) complex in combination with an essential amino-carboxylate additive to generate usefully protected 1,3-aminoaldehyde derivatives. The scalability of the reaction was demonstrated as was a series of downstream product functionalizations, including dithiane deprotection, anion alkylation and reductive desulfurization, highlighting the general applicability of this transformation in the synthesis of novel scaffolds and building blocks.
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Affiliation(s)
- Heyao Shi
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford , OX1 3TA , UK .
| | - Darren J Dixon
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford , OX1 3TA , UK .
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167
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Vasu D, Fuentes de Arriba AL, Leitch JA, de Gombert A, Dixon DJ. Primary α-tertiary amine synthesis via α-C-H functionalization. Chem Sci 2019; 10:3401-3407. [PMID: 30996928 PMCID: PMC6429468 DOI: 10.1039/c8sc05164j] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 02/03/2019] [Indexed: 12/14/2022] Open
Abstract
A quinone-mediated general synthetic platform for the construction of primary α-tertiary amines from abundant primary α-branched amine starting materials is described. This procedure pivots on the efficient in situ generation of reactive ketimine intermediates and subsequent reaction with carbon-centered nucleophiles such as organomagnesium and organolithium reagents, and TMSCN, creating quaternary centers. Furthermore, extension to reverse polarity photoredox catalysis enables reactivity with electrophiles, via a nucleophilic α-amino radical intermediate. This efficient, broadly applicable and scalable amine-to-amine synthetic platform was successfully applied to library and API synthesis and in the functionalization of drug molecules.
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Affiliation(s)
- Dhananjayan Vasu
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford , UK .
| | - Angel L Fuentes de Arriba
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford , UK .
| | - Jamie A Leitch
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford , UK .
| | - Antoine de Gombert
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford , UK .
| | - Darren J Dixon
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford , UK .
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168
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Nimmagadda SK, Liu M, Karunananda MK, Gao DW, Apolinar O, Chen JS, Liu P, Engle KM. Catalytic, Enantioselective α-Alkylation of Azlactones with Nonconjugated Alkenes by Directed Nucleopalladation. Angew Chem Int Ed Engl 2019; 58:3923-3927. [PMID: 30729619 PMCID: PMC6595491 DOI: 10.1002/anie.201814272] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Indexed: 01/03/2023]
Abstract
A palladium(II)-catalyzed enantioselective α-alkylation of azlactones with nonconjugated alkenes is described. The reaction employs a chiral BINOL-derived phosphoric acid as the source of stereoinduction, and a cleavable bidentate directing group appended to the alkene to control the regioselectivity and stabilize the nucleopalladated alkylpalladium(II) intermediate in the catalytic cycle. A wide range of azlactones were found to be compatible under the optimal reaction conditions to afford products bearing α,α-disubstituted α-amino-acid derivatives with high yields and high enantioselectivity.
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Affiliation(s)
- Sri Krishna Nimmagadda
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - Mingyu Liu
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - Malkanthi K Karunananda
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - De-Wei Gao
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - Omar Apolinar
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - Jason S Chen
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
| | - Keary M Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
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169
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Nimmagadda SK, Liu M, Karunananda MK, Gao D, Apolinar O, Chen JS, Liu P, Engle KM. Catalytic, Enantioselective α‐Alkylation of Azlactones with Nonconjugated Alkenes by Directed Nucleopalladation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814272] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Sri Krishna Nimmagadda
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - Mingyu Liu
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - Malkanthi K. Karunananda
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - De‐Wei Gao
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - Omar Apolinar
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - Jason S. Chen
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - Peng Liu
- Department of ChemistryUniversity of Pittsburgh 219 Parkman Avenue Pittsburgh PA 15260 USA
| | - Keary M. Engle
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
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170
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Dai XJ, Engl OD, León T, Buchwald SL. Catalytic Asymmetric Synthesis of α-Arylpyrrolidines and Benzo-fused Nitrogen Heterocycles. Angew Chem Int Ed Engl 2019; 58:3407-3411. [PMID: 30659729 PMCID: PMC6553474 DOI: 10.1002/anie.201814331] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Indexed: 11/11/2022]
Abstract
Herein, we report a practical two-step synthetic route to α-arylpyrrolidines through Suzuki-Miyaura cross-coupling and enantioselective copper-catalyzed intramolecular hydroamination reactions. The excellent stereoselectivity and broad scope for the transformation of substrates with pharmaceutically relevant heteroarenes render this method a practical and versatile approach for pyrrolidine synthesis. Additionally, this intramolecular hydroamination strategy facilitates the asymmetric synthesis of tetrahydroisoquinolines and medium-ring dibenzo-fused nitrogen heterocycles.
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Affiliation(s)
- Xi-Jie Dai
- Department of Chemistry, Room 18–490 Massachusetts Institute
ofTechnology, Cambridge, MA 02139 (USA)
| | - Oliver D. Engl
- Department of Chemistry, Room 18–490 Massachusetts Institute
ofTechnology, Cambridge, MA 02139 (USA)
| | - Thierry León
- Department of Chemistry, Room 18–490 Massachusetts Institute
ofTechnology, Cambridge, MA 02139 (USA)
| | - Stephen L. Buchwald
- Department of Chemistry, Room 18–490 Massachusetts Institute
ofTechnology, Cambridge, MA 02139 (USA)
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171
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Liu YH, Li PX, Yao QJ, Zhang ZZ, Huang DY, Le MD, Song H, Liu L, Shi BF. Cp*Co(III)/MPAA-Catalyzed Enantioselective Amidation of Ferrocenes Directed by Thioamides under Mild Conditions. Org Lett 2019; 21:1895-1899. [DOI: 10.1021/acs.orglett.9b00511] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yan-Hua Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Peng-Xiang Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
- International Healthcare Innovation Institute (Jiangmen), Jiangmen 529040, China
| | - Qi-Jun Yao
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zhuo-Zhuo Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Dan-Ying Huang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
- International Healthcare Innovation Institute (Jiangmen), Jiangmen 529040, China
| | - Minh Dong Le
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Hong Song
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Lei Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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172
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Han YQ, Ding Y, Zhou T, Yan SY, Song H, Shi BF. Pd(II)-Catalyzed Enantioselective Alkynylation of Unbiased Methylene C(sp3)–H Bonds Using 3,3′-Fluorinated-BINOL as a Chiral Ligand. J Am Chem Soc 2019; 141:4558-4563. [DOI: 10.1021/jacs.9b01124] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ye-Qiang Han
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yi Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Tao Zhou
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Sheng-Yi Yan
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Hong Song
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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173
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Catalytic Asymmetric Synthesis of α-Arylpyrrolidines and Benzo-fused Nitrogen Heterocycles. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814331] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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174
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Chan JZ, Chang Y, Wasa M. B(C 6F 5) 3-Catalyzed C-H Alkylation of N-Alkylamines Using Silicon Enolates without External Oxidant. Org Lett 2019; 21:984-988. [PMID: 30693779 DOI: 10.1021/acs.orglett.8b03959] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient method for the coupling of N-alkylamines with silicon enolates to generate β-amino carbonyl compounds is disclosed. These reactions proceed by activation of α-amino C-H bonds by B(C6F5)3, which likely generates a "frustrated" acid/base complex in the presence of large N-alkylamines. The transformation requires no external oxidant and releases hydrosilane as a byproduct. The utility of this method is demonstrated in the late-stage functionalization of bioactive molecules such as citalopram, atomoxetine, and fluoxetine.
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Affiliation(s)
- Jessica Z Chan
- Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States
| | - Yejin Chang
- Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States
| | - Masayuki Wasa
- Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States
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175
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Fukagawa S, Kato Y, Tanaka R, Kojima M, Yoshino T, Matsunaga S. Enantioselective C(sp
3
)–H Amidation of Thioamides Catalyzed by a Cobalt
III
/Chiral Carboxylic Acid Hybrid System. Angew Chem Int Ed Engl 2019; 58:1153-1157. [DOI: 10.1002/anie.201812215] [Citation(s) in RCA: 165] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Seiya Fukagawa
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Yoshimi Kato
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Ryo Tanaka
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Masahiro Kojima
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
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176
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Hu L, Shen PX, Shao Q, Hong K, Qiao JX, Yu JQ. Pd II -Catalyzed Enantioselective C(sp 3 )-H Activation/Cross-Coupling Reactions of Free Carboxylic Acids. Angew Chem Int Ed Engl 2019; 58:2134-2138. [PMID: 30536546 DOI: 10.1002/anie.201813055] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Indexed: 02/04/2023]
Abstract
PdII -catalyzed enantioselective C(sp3 )-H cross-coupling of free carboxylic acids with organoborons has been realized using either mono-protected amino acid (MPAA) ligands or mono-protected aminoethyl amine (MPAAM) ligands. A diverse range of aryl- and vinyl-boron reagents can be used as coupling partners to provide chiral carboxylic acids. This reaction provides an alternative approach to the enantioselective synthesis of cyclopropanecarboxylic acids and cyclobutanecarboxylic acids containing α-chiral tertiary and quaternary stereocenters. The utility of this reaction was further demonstrated by converting the carboxylic acid into cyclopropyl amine without loss of optical activity.
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Affiliation(s)
- Liang Hu
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Peng-Xiang Shen
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Qian Shao
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Kai Hong
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Jennifer X Qiao
- Discovery Chemistry, Bristol-Myers Squibb Company, P.O. Box 4000, Princeton, NJ, 08543, USA
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
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177
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Gonnard L, Guérinot A, Cossy J. Transition metal-catalyzed α-alkylation of amines by C(sp3)‒H bond activation. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.11.034] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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178
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Baccalini A, Vergura S, Dolui P, Zanoni G, Maiti D. Recent advances in cobalt-catalysed C–H functionalizations. Org Biomol Chem 2019; 17:10119-10141. [DOI: 10.1039/c9ob01994d] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Ready availability, low cost and low toxicity of cobalt salts have redirected the attention of researchers away from noble metals, such as Pd, Rh, and Ir, towards Co in the field of C–H functionalisation.
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Affiliation(s)
| | | | - Pravas Dolui
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | | | - Debabrata Maiti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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179
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Singh S, Sunoj RB. Computational asymmetric catalysis: On the origin of stereoselectivity in catalytic reactions. ADVANCES IN PHYSICAL ORGANIC CHEMISTRY 2019. [DOI: 10.1016/bs.apoc.2019.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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180
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Liu RH, Shan QC, Hu XH, Loh TP. Site-selective C(sp3)–H amination of thioamide with anthranils under Cp*CoIII catalysis. Chem Commun (Camb) 2019; 55:5519-5522. [DOI: 10.1039/c9cc01715a] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Synthetically versatile anthranils as a bifunctional amino source have been employed for the first time to enable direct amination on unactivated C(sp3)–H bonds of thioamides under Cp*CoIII catalysis.
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Affiliation(s)
- Rui-Hua Liu
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Qi-Chao Shan
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Xu-Hong Hu
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Teck-Peng Loh
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
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181
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Galushko AS, Gordeev EG, Ananikov VP. High-Performance Synthesis of Phosphorus-Doped Graphene Materials and Stabilization of Phosphoric Micro- and Nanodroplets. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:15739-15748. [PMID: 30550292 DOI: 10.1021/acs.langmuir.8b03417] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A thermally induced cascade process leading to the formation of stable micro- and nanometer-size phosphoric droplets was developed starting from a molecular precursor. Microwave-induced pyrolysis of 1,2,3,4,5-pentaphenylphosphole oxide proceeded through a series of subsequent transformations involving formation of phosphorus-doped graphene oxide layers, seeding of carbon surface with phosphorus centers, and assembling of stable droplets. A complex nanostructured organization of the material was established in a remarkably short time of 3 min, and the process was performed in a thermally induced manner using microwave irradiation. High stability of the liquid phosphoric structures on the surface of doped graphene oxide over a few-month period was demonstrated, as well as under challenging conditions in organic solvents (chloroform, methylene chloride, or toluene media) and even under sonication. Detailed examination of this material by electron microscopy and a number of analytical methods showed its unique organization at the nanoscale, whereas computational modeling revealed unusually strong binding of phosphorus oxide P4O10 to the graphene surface. The study demonstrates a fascinating opportunity to access a complex nanostructured multicomponent material from a single and easily available molecular precursor.
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Affiliation(s)
- Alexey S Galushko
- Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospekt, 47 , Moscow 119991 , Russia
| | - Evgeniy G Gordeev
- Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospekt, 47 , Moscow 119991 , Russia
| | - Valentine P Ananikov
- Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospekt, 47 , Moscow 119991 , Russia
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182
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Jiang HJ, Zhong XM, Yu J, Zhang Y, Zhang X, Wu YD, Gong LZ. Assembling a Hybrid Pd Catalyst from a Chiral Anionic Co III Complex and Ligand for Asymmetric C(sp 3 )-H Functionalization. Angew Chem Int Ed Engl 2018; 58:1803-1807. [PMID: 30466177 DOI: 10.1002/anie.201812426] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Indexed: 01/07/2023]
Abstract
An unusual hybrid palladium catalyst containing an anionic chiral CoIII complex and a chiral phosphoramidite ligand shows a high capacity for catalyzing asymmetric thioamide-directed C(sp3 )-H arylation and delivers excellent yield and enantioselectivity (up to 99 % yield, 99 % ee). Significant synergy between the chiral ligand and the anion in terms of stereochemical control was observed. Mechanistic investigations have revealed both the nature of the C-H activation and the origin of the enantioselectivity.
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Affiliation(s)
- Hua-Jie Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Xiu-Mei Zhong
- Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Jie Yu
- State Key Laboratory of Tea Plant Biology and Utilization and Department of Applied Chemistry, Anhui Agricultural University, Hefei, 230036, China
| | - Ying Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Xinhao Zhang
- Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Yun-Dong Wu
- Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
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183
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Jiang H, Zhong X, Yu J, Zhang Y, Zhang X, Wu Y, Gong L. Assembling a Hybrid Pd Catalyst from a Chiral Anionic Co
III
Complex and Ligand for Asymmetric C(sp
3
)–H Functionalization. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812426] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hua‐Jie Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryUniversity of Science and Technology of China Hefei 230026 China
| | - Xiu‐Mei Zhong
- Lab of Computational Chemistry and Drug DesignState Key Laboratory of Chemical OncogenomicsPeking University Shenzhen Graduate School Shenzhen 518055 China
| | - Jie Yu
- State Key Laboratory of Tea Plant Biology and Utilization and Department of Applied ChemistryAnhui Agricultural University Hefei 230036 China
| | - Ying Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryUniversity of Science and Technology of China Hefei 230026 China
| | - Xinhao Zhang
- Lab of Computational Chemistry and Drug DesignState Key Laboratory of Chemical OncogenomicsPeking University Shenzhen Graduate School Shenzhen 518055 China
| | - Yun‐Dong Wu
- Lab of Computational Chemistry and Drug DesignState Key Laboratory of Chemical OncogenomicsPeking University Shenzhen Graduate School Shenzhen 518055 China
| | - Liu‐Zhu Gong
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryUniversity of Science and Technology of China Hefei 230026 China
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184
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Fukagawa S, Kato Y, Tanaka R, Kojima M, Yoshino T, Matsunaga S. Enantioselective C(sp
3
)–H Amidation of Thioamides Catalyzed by a Cobalt
III
/Chiral Carboxylic Acid Hybrid System. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812215] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Seiya Fukagawa
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Yoshimi Kato
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Ryo Tanaka
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Masahiro Kojima
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical SciencesHokkaido University Kita-ku Sapporo 060-0812 Japan
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185
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Zawodny W, Montgomery SL, Marshall JR, Finnigan JD, Turner NJ, Clayden J. Chemoenzymatic Synthesis of Substituted Azepanes by Sequential Biocatalytic Reduction and Organolithium-Mediated Rearrangement. J Am Chem Soc 2018; 140:17872-17877. [PMID: 30521324 DOI: 10.1021/jacs.8b11891] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Enantioenriched 2-aryl azepanes and 2-arylbenzazepines were generated biocatalytically by asymmetric reductive amination using imine reductases or by deracemization using monoamine oxidases. The amines were converted to the corresponding N'-aryl ureas, which rearranged on treatment with base with stereospecific transfer of the aryl substituent to the 2-position of the heterocycle via a configurationally stable benzyllithium intermediate. The products are previously inaccessible enantioenriched 2,2-disubstituted azepanes and benzazepines.
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Affiliation(s)
- Wojciech Zawodny
- School of Chemistry , University of Manchester, Manchester Institute of Biotechnology , 131 Princess Street , Manchester M1 7DN , United Kingdom
| | - Sarah L Montgomery
- School of Chemistry , University of Manchester, Manchester Institute of Biotechnology , 131 Princess Street , Manchester M1 7DN , United Kingdom
| | - James R Marshall
- School of Chemistry , University of Manchester, Manchester Institute of Biotechnology , 131 Princess Street , Manchester M1 7DN , United Kingdom
| | - James D Finnigan
- Prozomix Limited , Station Court , Haltwhistle NE49 9HN , United Kingdom
| | - Nicholas J Turner
- School of Chemistry , University of Manchester, Manchester Institute of Biotechnology , 131 Princess Street , Manchester M1 7DN , United Kingdom
| | - Jonathan Clayden
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , United Kingdom
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186
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Su B, Lee T, Hartwig JF. Iridium-Catalyzed, β-Selective C(sp 3)-H Silylation of Aliphatic Amines To Form Silapyrrolidines and 1,2-Amino Alcohols. J Am Chem Soc 2018; 140:18032-18038. [PMID: 30354144 DOI: 10.1021/jacs.8b10428] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The functionalization of unactivated C(sp3)-H bonds of aliphatic amines catalyzed by transition-metal complexes is important because amine-based functionality is present in a majority of biologically active molecules and commercial pharmaceuticals. However, such reactions are underdeveloped and challenging to achieve in general because the basicity and reducing properties of alkylamines tends to interfere with potential reagents and catalysts. The functionalization of C-H bonds β to the nitrogen of aliphatic amines to form prevalent 1,2-amino functionalized structures is particularly challenging because the C-H bond β to nitrogen is stronger than the C-H bond α to nitrogen, and the nitrogen in the amine or its derivatives usually directs a catalyst to react at more distal γ- and δ-C-H bonds to form 5- or 6-membered metallacyclic intermediate. The enantioselective functionalization of a C-H bond at any position in amines also has been vexing and is currently limited to reactions of specific, sterically hindered, cyclic structures. We report iridium-catalyzed, β-selective silylations of unactivated C(sp3)-H bonds of aliphatic amines to form silapyrrolidines that are both silicon-containing analogs of common saturated nitrogen heterocycles and precursors to 1,2-amino alcohols by Tamao-Fleming oxidation. These silylations of amines are accomplished by introducing a simple methylene linker between the heteroatom and silicon that has not been used previously for the silylation of C-H bonds. The reactions occur with high enantioselectivity when catalyzed by complexes of new chiral, pyridyl imidazoline ligands, and the rates of reactions with catalysts of these highly basic ligands are particularly fast, occuring in some cases at or even below room temperature.
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Affiliation(s)
- Bo Su
- Department of Chemistry , University of California, Berkeley , Berkeley , California 94720 , United States
| | - Taegyo Lee
- Department of Chemistry , University of California, Berkeley , Berkeley , California 94720 , United States
| | - John F Hartwig
- Department of Chemistry , University of California, Berkeley , Berkeley , California 94720 , United States
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187
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Tian JJ, Zeng NN, Liu N, Tu XS, Wang XC. Intramolecular Cyclizations of Vinyl-Substituted N,N-Dialkyl Arylamines Enabled by Borane-Assisted Hydride Transfer. ACS Catal 2018. [DOI: 10.1021/acscatal.8b04485] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jun-Jie Tian
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ning-Ning Zeng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ning Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xian-Shuang Tu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiao-Chen Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, China
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188
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Bay KL, Yang YF, Houk KN. Computational Exploration of a Pd(II)-Catalyzed γ-C-H Arylation Where Stereoselectivity Arises from Attractive Aryl-Aryl Interactions. J Org Chem 2018; 83:14786-14790. [PMID: 30403854 DOI: 10.1021/acs.joc.8b02416] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The enantioselective Pd(II)-catalyzed γ-C-H arylation of picolinamides with a chiral BINOL phosphate ligand was explored using density functional theory (DFT). Enantioselectivity arises from attractive aryl-aryl interactions between the pseudoequatorial phenyl substituent of the substrate and the chiral BINOL phosphate ligand.
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Affiliation(s)
- Katherine L Bay
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095 , United States
| | - Yun-Fang Yang
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095 , United States.,College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , P. R. China
| | - K N Houk
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095 , United States
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189
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Sweeney JB, Doulcet J, Thapa B. Synthesis of 3-Substituted Pyrrolidines via Palladium-Catalyzed Hydroarylation. iScience 2018; 9:328-336. [PMID: 30448732 PMCID: PMC6240703 DOI: 10.1016/j.isci.2018.10.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 09/22/2018] [Accepted: 10/26/2018] [Indexed: 01/16/2023] Open
Abstract
Metal-catalyzed reactions have revolutionized synthetic chemistry, allowing access to unprecedented molecular architectures with powerful properties and activities. Nonetheless, some transformations remain sparse in number, or out of reach, even with the diverse modern catalytic chemical arsenal, including bimolecular alkene hydroarylation reactions. We report here a broad-scope, palladium-catalyzed pyrroline hydroarylation process that gives 3-aryl pyrrolidines, a class of small molecules with potency in a diverse range of biological scenarios. Thus, whereas N-acyl pyrrolines usually undergo palladium-catalyzed arylation to give alkene products, the corresponding reactions of N-alkyl pyrrolines deliver products of hydroarylation, pyrrolidines. The process has broad substrate scope and can be used to directly deliver drug-like molecules in a single step from readily available precursors. Pyrrolines undergo hydroarylation in palladium-catalyzed processes The process allows facile catalytic entry to molecules with potent biological activity The reaction has broad scope in arylating agents Enables efficient manufacture of drug-like molecules from readily available precursors
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Affiliation(s)
- Joseph B Sweeney
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, UK.
| | - Julien Doulcet
- Department of Chemical Sciences, University of Huddersfield, Huddersfield HD1 3DH, UK
| | - Bimod Thapa
- Department of Chemical Sciences, University of Huddersfield, Huddersfield HD1 3DH, UK
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190
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Enantioselective Cobalt(III)‐Catalyzed C−H Activation Enabled by Chiral Carboxylic Acid Cooperation. Angew Chem Int Ed Engl 2018; 57:15425-15429. [DOI: 10.1002/anie.201808595] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/16/2018] [Indexed: 11/07/2022]
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191
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Pesciaioli F, Dhawa U, Oliveira JCA, Yin R, John M, Ackermann L. Enantioselective Cobalt(III)‐Catalyzed C−H Activation Enabled by Chiral Carboxylic Acid Cooperation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808595] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Fabio Pesciaioli
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Uttam Dhawa
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Rongxin Yin
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Michael John
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
- Department of ChemistryUniversity of Pavia Viale Taramelli, 10 27100 Pavia Italy
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192
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Tong HR, Zheng S, Li X, Deng Z, Wang H, He G, Peng Q, Chen G. Pd(0)-Catalyzed Bidentate Auxiliary Directed Enantioselective Benzylic C–H Arylation of 3-Arylpropanamides Using the BINOL Phosphoramidite Ligand. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03654] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Hua-Rong Tong
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Sujuan Zheng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xinghua Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhiqiang Deng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Hao Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Gang He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Qian Peng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Gong Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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193
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Tang K, Wang C, Gao T, Chen L, Fan L, Sun L. Transition Metal‐Catalyzed C−H Bond Functionalizations by Use of Sulfur‐Containing Directing Groups. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800484] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Kai‐Xiang Tang
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal ChemistryChina Pharmaceutical University #24 Tongjiaxiang Nanjing 210009 People's Republic of China
| | - Chun‐Meng Wang
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal ChemistryChina Pharmaceutical University #24 Tongjiaxiang Nanjing 210009 People's Republic of China
| | - Tian‐Hong Gao
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal ChemistryChina Pharmaceutical University #24 Tongjiaxiang Nanjing 210009 People's Republic of China
| | - Lin Chen
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal ChemistryChina Pharmaceutical University #24 Tongjiaxiang Nanjing 210009 People's Republic of China
| | - Lian Fan
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal ChemistryChina Pharmaceutical University #24 Tongjiaxiang Nanjing 210009 People's Republic of China
| | - Li‐Ping Sun
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal ChemistryChina Pharmaceutical University #24 Tongjiaxiang Nanjing 210009 People's Republic of China
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194
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Buettner CS, Willcox D, Chappell BGN, Gaunt MJ. Mechanistic investigation into the C(sp 3)-H acetoxylation of morpholinones. Chem Sci 2018; 10:83-89. [PMID: 30713620 PMCID: PMC6331033 DOI: 10.1039/c8sc03434f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 09/28/2018] [Indexed: 12/15/2022] Open
Abstract
The study of a selective palladium(ii)-catalyzed C(sp3)–H acetoxylation reaction on a class of cyclic alkyl amines is reported.
The study of a selective palladium(ii)-catalyzed C(sp3)–H acetoxylation reaction on a class of cyclic alkyl amines is reported. Computational modelling and kinetic studies were used to provide support for a mechanism involving selective C–O bond formation from a γ-aminoalkyl-Pd(iv) intermediate. The C–O bond forming step was computed to occur by a dissociative ionization mechanism followed by an SN2 process involving external acetate attack at the C–Pd(iv) bond. This pathway was computed to be of lowest energy with no competing C–N products observed. Additionally, with a few modifications to reaction conditions, preliminary studies showed that this process could be rendered enantioselective in the presence of a non-racemic BINOL-phosphoric acid.
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Affiliation(s)
- Cornelia S Buettner
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , UK .
| | - Darren Willcox
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , UK .
| | - Ben G N Chappell
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , UK .
| | - Matthew J Gaunt
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , UK .
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195
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Sambiagio C, Schönbauer D, Blieck R, Dao-Huy T, Pototschnig G, Schaaf P, Wiesinger T, Zia MF, Wencel-Delord J, Besset T, Maes BUW, Schnürch M. A comprehensive overview of directing groups applied in metal-catalysed C-H functionalisation chemistry. Chem Soc Rev 2018; 47:6603-6743. [PMID: 30033454 PMCID: PMC6113863 DOI: 10.1039/c8cs00201k] [Citation(s) in RCA: 1105] [Impact Index Per Article: 184.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 12/20/2022]
Abstract
The present review is devoted to summarizing the recent advances (2015-2017) in the field of metal-catalysed group-directed C-H functionalisation. In order to clearly showcase the molecular diversity that can now be accessed by means of directed C-H functionalisation, the whole is organized following the directing groups installed on a substrate. Its aim is to be a comprehensive reference work, where a specific directing group can be easily found, together with the transformations which have been carried out with it. Hence, the primary format of this review is schemes accompanied with a concise explanatory text, in which the directing groups are ordered in sections according to their chemical structure. The schemes feature typical substrates used, the products obtained as well as the required reaction conditions. Importantly, each example is commented on with respect to the most important positive features and drawbacks, on aspects such as selectivity, substrate scope, reaction conditions, directing group removal, and greenness. The targeted readership are both experts in the field of C-H functionalisation chemistry (to provide a comprehensive overview of the progress made in the last years) and, even more so, all organic chemists who want to introduce the C-H functionalisation way of thinking for a design of straightforward, efficient and step-economic synthetic routes towards molecules of interest to them. Accordingly, this review should be of particular interest also for scientists from industrial R&D sector. Hence, the overall goal of this review is to promote the application of C-H functionalisation reactions outside the research groups dedicated to method development and establishing it as a valuable reaction archetype in contemporary R&D, comparable to the role cross-coupling reactions play to date.
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Affiliation(s)
- Carlo Sambiagio
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - David Schönbauer
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Remi Blieck
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Toan Dao-Huy
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Gerit Pototschnig
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Patricia Schaaf
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Thomas Wiesinger
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Muhammad Farooq Zia
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Joanna Wencel-Delord
- Laboratoire de Chimie Moléculaire (UMR CNRS 7509)
, Université de Strasbourg
,
ECPM 25 Rue Becquerel
, 67087 Strasbourg
, France
| | - Tatiana Besset
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Bert U. W. Maes
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
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196
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Jin L, Wang J, Dong G. Palladium-Catalyzed γ-C(sp3
)−H Arylation of Thiols by a Detachable Protecting/Directing Group. Angew Chem Int Ed Engl 2018; 57:12352-12355. [DOI: 10.1002/anie.201807760] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Likun Jin
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
- College of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 P. R. China
| | - Jianchun Wang
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
| | - Guangbin Dong
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
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197
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Jin L, Wang J, Dong G. Palladium-Catalyzed γ-C(sp3
)−H Arylation of Thiols by a Detachable Protecting/Directing Group. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807760] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Likun Jin
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
- College of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 P. R. China
| | - Jianchun Wang
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
| | - Guangbin Dong
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
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198
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Kapoor M, Chand-Thakuri P, Maxwell JM, Young MC. Achieving Moderate Pressures in Sealed Vessels Using Dry Ice As a Solid CO2 Source. J Vis Exp 2018. [PMID: 30176024 DOI: 10.3791/58281] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Herein is presented a general strategy to perform reactions under mild to moderate CO2 pressures with dry ice. This technique obviates the need for specialized equipment to achieve modest pressures, and can even be used to achieve higher pressures in more specialized equipment and sturdier reaction vessels. At the end of the reaction, the vials can be easily depressurized by opening at room temperature. In the present example CO2 serves as both a putative directing group as well as a way to passivate amine substrates, thereby preventing oxidation during the organometallic reaction. In addition to being easily added, the directing group is also removed under vacuum, obviating the need for extensive purification to remove the directing group. This strategy allows the facile γ-C(sp3)-H arylation of aliphatic amines and has the potential to be applied to a variety of other amine-based reactions.
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Affiliation(s)
- Mohit Kapoor
- Department of Chemistry and Biochemistry, University of Toledo; School of Green Chemistry and Engineering, University of Toledo
| | - Pratibha Chand-Thakuri
- Department of Chemistry and Biochemistry, University of Toledo; School of Green Chemistry and Engineering, University of Toledo
| | - Justin M Maxwell
- Department of Chemistry and Biochemistry, University of Toledo; School of Green Chemistry and Engineering, University of Toledo
| | - Michael C Young
- Department of Chemistry and Biochemistry, University of Toledo; School of Green Chemistry and Engineering, University of Toledo;
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199
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Lin L, Fukagawa S, Sekine D, Tomita E, Yoshino T, Matsunaga S. Chiral Carboxylic Acid Enabled Achiral Rhodium(III)‐Catalyzed Enantioselective C−H Functionalization. Angew Chem Int Ed Engl 2018; 57:12048-12052. [DOI: 10.1002/anie.201807610] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Luqing Lin
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Seiya Fukagawa
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Daichi Sekine
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Eiki Tomita
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
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200
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Lin L, Fukagawa S, Sekine D, Tomita E, Yoshino T, Matsunaga S. Chiral Carboxylic Acid Enabled Achiral Rhodium(III)‐Catalyzed Enantioselective C−H Functionalization. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807610] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Luqing Lin
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Seiya Fukagawa
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Daichi Sekine
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Eiki Tomita
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-ku Sapporo 060-0812 Japan
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