1
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Ma Q, Wang F, Zhang P, Li G, Li Y, Xu X, Jin Z. Pd(0)/Xantphos-Catalyzed Benzylic C(sp 3)-O Arylation of Benzyl Heteroaryl Ethers: Reduction of Pd(II) to Pd(0) by Xantphos. J Org Chem 2024. [PMID: 39197853 DOI: 10.1021/acs.joc.4c00966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2024]
Abstract
Herein, we report the synthesis of 1,1-diarylmethanes via palladium-catalyzed benzylic C(sp3)-O arylation of benzyl alcohol derivatives. An efficient, straightforward approach to synthesizing Pd(0)(xantphos)2 was developed through in situ reduction of Pd(II) to Pd(0) with the bidentate tertiary phosphine xantphos, which proved to be a highly active precatalyst in the Suzuki-Miyaura cross-coupling reaction of benzyl heteroaryl ethers.
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Affiliation(s)
- Qingxue Ma
- College of Chemistry, National Engineering Research Center of Pesticide, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Fengdong Wang
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
| | - Pengfei Zhang
- College of Chemistry, National Engineering Research Center of Pesticide, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Guoshuai Li
- College of Chemistry, National Engineering Research Center of Pesticide, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Yang Li
- College of Chemistry, National Engineering Research Center of Pesticide, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Xiaohua Xu
- College of Chemistry, National Engineering Research Center of Pesticide, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Zhong Jin
- College of Chemistry, National Engineering Research Center of Pesticide, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
- Key Laboratory of Xinjiang Native Medicinal and Edible Plant Resource Chemistry, College of Chemistry and Environmental Sciences, Kashi University, Kashgar 844000, China
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2
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Luo J, Xu JJ, Ren HJ, Xu JB, Gao F, Fang DM, Wan LX. Design, synthesis and biological evaluation of 1-aryldonepezil analogues as anti-Alzheimer's disease agents. Future Med Chem 2024; 16:983-997. [PMID: 38910574 PMCID: PMC11221548 DOI: 10.4155/fmc-2023-0369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/18/2024] [Indexed: 06/25/2024] Open
Abstract
Aim: To design and synthesize a novel series of 1-aryldonepezil analogues. Materials & methods: The 1-aryldonepezil analogues were synthesized through palladium/PCy3-catalyzed Suzuki reaction and were evaluated for cholinesterase inhibitory activities and neuroprotective effects. In silico docking of the most effective compound was conducted. Results: The 4-tert-butylphenyl analogue exhibited good inhibitory potency against acetylcholinesterase and butyrylcholinesterase and had a favorable neuroprotective effect on H2O2-induced SH-SY5Y cell injury. Conclusion: The 4-tert-butylphenyl derivative is a promising lead compound for anti-Alzheimer's disease drug development.
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Affiliation(s)
- Jiao Luo
- Department of Pharmacy, The Third People's Hospital of Chengdu, Chengdu, 610041, PR China
| | - Jing-Jing Xu
- Department of Pharmacy, The Third People's Hospital of Chengdu, Chengdu, 610041, PR China
| | - Hui-Jun Ren
- Department of Pharmacy, The Third People's Hospital of Chengdu, Chengdu, 610041, PR China
| | - Jin-Bu Xu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science & Engineering, Southwest Jiaotong University, Chengdu, 610031, PR China
| | - Feng Gao
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science & Engineering, Southwest Jiaotong University, Chengdu, 610031, PR China
| | - Dong-Mei Fang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China
| | - Lin-Xi Wan
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, PR China
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3
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Binayeva M, Ma X, Ghaemimohammadi P, Biscoe MR. A general approach to stereospecific Pd-catalyzed cross-coupling reactions of benzylic stereocenters. Chem Sci 2023; 14:14124-14130. [PMID: 38098708 PMCID: PMC10717501 DOI: 10.1039/d3sc04519f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 11/15/2023] [Indexed: 12/17/2023] Open
Abstract
We have developed a general process for the formation of enantioenriched benzylic stereocenters via stereospecific Pd-catalyzed cross-coupling reactions of enantioenriched benzylic tricyclohexyltin nucleophiles. This process proceeds with excellent stereospecificity for a remarkably broad scope of electrophilic coupling partners including aryl and heteroaryl halides and triflates, acid chlorides, thioesters, chloroformates, and carbamoyl chlorides. Thus, enantioenriched 1,1-diarylalkanes as well as formal products of asymmetric enolate arylation are readily accessed using this approach. We additionally provide the first demonstration of a Sn-selective cross-coupling reaction using a vicinal alkylborylstannane nucleophile. In these reactions, the presence of cyclohexyl spectator ligands on tin is essential to ensure selective transfer of the secondary benzylic unit from tin to palladium.
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Affiliation(s)
- Meruyert Binayeva
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
| | - Xinghua Ma
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
| | - Pejman Ghaemimohammadi
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
| | - Mark R Biscoe
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
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4
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Sun YZ, Ren ZY, Yang YX, Liu Y, Lin GQ, He ZT. Asymmetric Substitution by Alkynyl Copper Driven Dearomatization and Rearomatization. Angew Chem Int Ed Engl 2023; 62:e202314517. [PMID: 37843815 DOI: 10.1002/anie.202314517] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/14/2023] [Accepted: 10/16/2023] [Indexed: 10/17/2023]
Abstract
Catalytic asymmetric transformations by dearomatization have developed into a widely applicable synthetic strategy, but heavily relied on the use of arenes bearing a heteroatom. In this case, the dearomatization is facilitated by the involvement of a p-orbital electron of the heteroatom. Different from the conventional substrate-dependent model, here we demonstrate that the activation by a d-orbital electron of the transition-metal center can serve as a driving force for dearomatization, and is applied to the development of a novel asymmetric alkynyl copper facilitated remote substitution reaction. A newly modified PyBox chiral ligand enables the construction of valuable diarylmethyl and triarylmethyl skeletons in high enantioselectivities. An unexpected tandem process involving sequential remote substitution/cyclization/1,5-H shift leads to the formation of the enantioenriched C-N axis. A gram-scale reaction and various downstream transformations highlight the robustness of this method and the potential transformations of the products. Preliminary mechanistic studies reveal a mononuclear Cu-catalyzed remote substitution process.
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Affiliation(s)
- Yu-Ze Sun
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
- Department of Chemistry, Shanghai Normal University, Shanghai, 200234, China
| | - Zi-Yang Ren
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Yuan-Xiang Yang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yang Liu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
| | - Guo-Qiang Lin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
- Department of Chemistry, Shanghai Normal University, Shanghai, 200234, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Zhi-Tao He
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
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5
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Yang J, Ponra S, Li X, Peters BBC, Massaro L, Zhou T, Andersson PG. Catalytic enantioselective synthesis of fluoromethylated stereocenters by asymmetric hydrogenation. Chem Sci 2022; 13:8590-8596. [PMID: 35974749 PMCID: PMC9337738 DOI: 10.1039/d2sc02685f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/21/2022] [Indexed: 11/22/2022] Open
Abstract
Fluoromethyl groups possess specific steric and electronic properties and serve as a bioisostere of alcohol, thiol, nitro, and other functional groups, which are important in an assortment of molecular recognition processes. Herein we report a catalytic method for the asymmetric synthesis of a variety of enantioenriched products bearing fluoromethylated stereocenters with excellent yields and enantioselectivities. Various N,P-ligands were designed and applied in the hydrogenation of fluoromethylated olefins and vinyl fluorides.
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Affiliation(s)
- Jianping Yang
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory 106 91 Stockholm Sweden
| | - Sudipta Ponra
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory 106 91 Stockholm Sweden
| | - Xingzhen Li
- College of Chemistry and Chemical Engineering, Southwest Petroleum University Chengdu Sichuan 610500 China
| | - Bram B C Peters
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory 106 91 Stockholm Sweden
| | - Luca Massaro
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory 106 91 Stockholm Sweden
| | - Taigang Zhou
- College of Chemistry and Chemical Engineering, Southwest Petroleum University Chengdu Sichuan 610500 China
| | - Pher G Andersson
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory 106 91 Stockholm Sweden
- School of Chemistry and Physics, University of Kwazulu-Natal Private Bag X54001 Durban 4000 South Africa
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6
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Zhu C, Zhang H, Liu Q, Chen K, Liu ZY, Feng C. Nickel-Catalyzed anti-Markovnikov Hydroalkylation of Trifluoromethylalkenes. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Chuan Zhu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Heng Zhang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Qian Liu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Kai Chen
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Ze-Yao Liu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Chao Feng
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
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7
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Xu J, Liu J, Chen G, Xiong B, Zhang X, Lian Z. Palladium-catalysed difluoroolefination of benzyl tosylates toward the synthesis of gem-difluoro-2-trifluromethyl styrene derivatives. RSC Adv 2022; 12:12983-12987. [PMID: 35497019 PMCID: PMC9049850 DOI: 10.1039/d2ra02473j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 04/21/2022] [Indexed: 02/05/2023] Open
Abstract
We have presented an efficient method to access gem-difluoro-2-trifluromethyl styrene derivatives via palladium catalysis. This method features mild reaction conditions, broad substrate scope and good product yields. Moreover, gram–scale reactions demonstrated the robustness and potential of this method. Control experiments revealed that the –CF3 group was essential to the success of this transformation. Finally, the practicality of this method was successfully proven by three synthetic applications. We presented an efficient method to access gem-difluoro-2-trifluromethyl styrene derivatives via palladium catalysis, which features mild reaction conditions and broad substrate scope.![]()
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Affiliation(s)
- Jie Xu
- West China School of Pharmacy, Sichuan University Chengdu 610041 China
| | - Jiangjun Liu
- West China School of Pharmacy, Sichuan University Chengdu 610041 China
| | - Gang Chen
- West China School of Pharmacy, Sichuan University Chengdu 610041 China
| | - Baojian Xiong
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University Chengdu 610041 China
| | - Xuemei Zhang
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University Chengdu 610041 China
| | - Zhong Lian
- West China School of Pharmacy, Sichuan University Chengdu 610041 China.,Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University Chengdu 610041 China
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8
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Guo W, Cheng L, Ma G, Tong W, Wu F. Diverse Synthesis of Chiral Trifluoromethylated Alkanes via Nickel-Catalyzed Enantioconvergent Reductive Hydroalkylation of Unactivated Olefins. Org Lett 2022; 24:1796-1801. [PMID: 35235316 DOI: 10.1021/acs.orglett.2c00148] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Here, we report a nickel-catalyzed enantioconvergent hydroalkylation of olefins with trifluoromethyl-containing α-alkyl halides for the synthesis of enantioenriched trifluoromethylated alkanes. This reaction employs readily available and bench-stable alkenes as alkyl coupling partners, featuring mild conditions, a broad substrate scope, and high functional group tolerance. The synthetic utility of this method is further demonstrated in the late-stage functionalization of a range of drug molecules and natural products.
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Affiliation(s)
- Wenqing Guo
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Li Cheng
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Guobin Ma
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Weiqi Tong
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Fan Wu
- Institute of Drug Discovery Technology and Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
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9
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Nambo M, Crudden CM. Transition Metal-Catalyzed Cross-Couplings of Benzylic Sulfone Derivatives. CHEM REC 2021; 21:3978-3989. [PMID: 34523788 DOI: 10.1002/tcr.202100210] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/31/2021] [Accepted: 09/01/2021] [Indexed: 12/25/2022]
Abstract
In recent years, the use of organosulfones as a new class of cross-coupling partner in transition-metal catalyzed reactions has undergone significant advancement. In this personal account, our recent investigations into desulfonylative cross-coupling reactions of benzylic sulfone derivatives catalyzed by Pd, Ni, and Cu catalysis is described. Combined with the facile α-functionalizations of sulfones, our methods can be used to form valuable multiply-arylated structures such as di-, tri-, and, tetraarylmethanes from readily available substrates. The reactivity of sulfones can be increased by introducing electron-withdrawing substituents such as 3,5-bis(trifluoromethyl)phenyl and trifluoromethyl groups, which enable more challenging cross-coupling reactions. Reactive intermediates including Cu-carbene complexes were identified as key intermediates in sulfone activation, representing new types of C-SO2 bond activation processes. These results indicate sulfones are powerful functional groups, enabling new catalytic desulfonylative transformations.
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Affiliation(s)
- Masakazu Nambo
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-860, Japan
| | - Cathleen M Crudden
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-860, Japan.,Department of Chemistry, Queen's University, Chernoff Hall, Kingston, Ontario, K7L 3N6, Canada
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10
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Kojima Y, Miura M, Hirano K. Copper-Catalyzed Regio- and Enantioselective Hydroallylation of 1-Trifluoromethylalkenes: Effect of Crown Ether. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02947] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yuki Kojima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita, Osaka 565-0871, Japan
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11
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Zhou P, Li X, Wang D, Xu T. Dual Nickel- and Photoredox-Catalyzed Reductive Cross-Coupling to Access Chiral Trifluoromethylated Alkanes. Org Lett 2021; 23:4683-4687. [PMID: 34077223 DOI: 10.1021/acs.orglett.1c01420] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A dual nickel/photoredox-catalyzed enantioselective reductive cross-coupling of aryl halides with CF3-substituted racemic alkyl electrophiles has been established. The approach accommodates a broad palette of aryl iodides and alkyl bromides to access a variety of chiral CF3-containing compounds. The exceptionally mild conditions (visible light, ambient temperature, no strong base) and no need for Grignard reagents or stoichiometric metallic reductants provide this transformation huge potential in the application of the late-stage functionalization of complex molecules.
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Affiliation(s)
- Pan Zhou
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Xinxuan Li
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Dong Wang
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Tao Xu
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
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12
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Min Y, Sheng J, Yu J, Ni S, Ma G, Gong H, Wang X. Diverse Synthesis of Chiral Trifluoromethylated Alkanes via Nickel‐Catalyzed Asymmetric Reductive Cross‐Coupling Fluoroalkylation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101076] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yue Min
- School of Materials Science and Engineering Center for Supramolecular Chemistry and Catalysis Department of Chemistry Shanghai University Shanghai 200444 China
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Jian‐Liang Yu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Shan‐Xiu Ni
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Guobin Ma
- School of Materials Science and Engineering Center for Supramolecular Chemistry and Catalysis Department of Chemistry Shanghai University Shanghai 200444 China
| | - Hegui Gong
- School of Materials Science and Engineering Center for Supramolecular Chemistry and Catalysis Department of Chemistry Shanghai University Shanghai 200444 China
| | - Xi‐Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
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13
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Yamamoto Y, Takase T, Kuroyanagi E, Yasui T. Synthesis of difluoromethylated diarylmethanes via Fe(OTf) 3-catalyzed Friedel-Crafts reaction of 2,2-difluoro-1-arylethyl phosphates. Chem Commun (Camb) 2021; 57:3877-3880. [PMID: 33871534 DOI: 10.1039/d1cc00765c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Fe(OTf)3-catalyzed Friedel-Crafts reaction of 2,2-difluoro-1-arylethyl phosphates with electron-rich (hetero)arenes afforded difluoromethylated diarylmethanes. Control experiments showed that Fe(OTf)3 behaves as the Lewis acid, and that the phosphate leaving group and o- or p-alkoxy substituents on the substrates are necessary for the Fe(OTf)3-catalyzed reaction to proceed under mild conditions.
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Affiliation(s)
- Yoshihiko Yamamoto
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan.
| | - Tomoya Takase
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan.
| | - Eisuke Kuroyanagi
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan.
| | - Takeshi Yasui
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan.
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14
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Tsuji H, Suzuki K, Kawatsura M. Ruthenium-catalyzed stereospecific benzylic alkylation of optically active benzyl esters with malonate nucleophiles. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Min Y, Sheng J, Yu JL, Ni SX, Ma G, Gong H, Wang XS. Diverse Synthesis of Chiral Trifluoromethylated Alkanes via Nickel-Catalyzed Asymmetric Reductive Cross-Coupling Fluoroalkylation. Angew Chem Int Ed Engl 2021; 60:9947-9952. [PMID: 33569847 DOI: 10.1002/anie.202101076] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 02/06/2021] [Indexed: 11/06/2022]
Abstract
The trifluoromethyl group represents one of the most functional and widely used fluoroalkyl groups in drug design and screening, while the drug candidates containing chiral trifluoromethyl-bearing carbons are still few due to the lack of efficient methods for the asymmetric introduction of trifluoromethyl group into organic molecules. Herein, we described a nickel-catalyzed asymmetric trifluoroalkylation of aryl iodides, for the first time, by utilizing reductive cross-coupling in enantioselective fluoroalkylation. This novel method has demonstrated high efficiency, mild conditions, and excellent functional group tolerance, especially for substrates containing diverse pharmaceutical and bioactive molecules moieties. This strategy provided an efficient and facile way for diversity-oriented synthesis of chiral trifluoromethylated alkanes.
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Affiliation(s)
- Yue Min
- School of Materials Science and Engineering, Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, Shanghai, 200444, China
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Jian-Liang Yu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Shan-Xiu Ni
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Guobin Ma
- School of Materials Science and Engineering, Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, Shanghai, 200444, China
| | - Hegui Gong
- School of Materials Science and Engineering, Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, Shanghai, 200444, China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
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16
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Boylan A, Nguyen TS, Lundy BJ, Li JY, Vallakati R, Sundstrom S, May JA. Rate Dependence on Inductive and Resonance Effects for the Organocatalyzed Enantioselective Conjugate Addition of Alkenyl and Alkynyl Boronic Acids to β-Indolyl Enones and β-Pyrrolyl Enones. Molecules 2021; 26:1615. [PMID: 33799473 PMCID: PMC8000498 DOI: 10.3390/molecules26061615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/05/2021] [Accepted: 03/08/2021] [Indexed: 12/01/2022] Open
Abstract
Two key factors bear on reaction rates for the conjugate addition of alkenyl boronic acids to heteroaryl-appended enones: the proximity of inductively electron-withdrawing heteroatoms to the site of bond formation and the resonance contribution of available heteroatom lone pairs to stabilize the developing positive charge at the enone β-position. For the former, the closer the heteroatom is to the enone β-carbon, the faster the reaction. For the latter, greater resonance stabilization of the benzylic cationic charge accelerates the reaction. Thus, reaction rates are increased by the closer proximity of inductive electron-withdrawing elements, but if resonance effects are involved, then increased rates are observed with electron-donating ability. Evidence for these trends in isomeric substrates is presented, and the application of these insights has allowed for reaction conditions that provide improved reactivity with previously problematic substrates.
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Affiliation(s)
- Amy Boylan
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Fleming Building 112, Houston, TX 77204-5003, USA; (A.B.); (T.S.N.); (B.J.L.); (J.-Y.L.); (R.V.); (S.S.)
| | - Thien S. Nguyen
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Fleming Building 112, Houston, TX 77204-5003, USA; (A.B.); (T.S.N.); (B.J.L.); (J.-Y.L.); (R.V.); (S.S.)
- Graduate School of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Brian J. Lundy
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Fleming Building 112, Houston, TX 77204-5003, USA; (A.B.); (T.S.N.); (B.J.L.); (J.-Y.L.); (R.V.); (S.S.)
- Baker Hughes, 17021 Aldine Westfield Rd, Houston, TX 77073, USA
| | - Jian-Yuan Li
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Fleming Building 112, Houston, TX 77204-5003, USA; (A.B.); (T.S.N.); (B.J.L.); (J.-Y.L.); (R.V.); (S.S.)
- Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Ravikrishna Vallakati
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Fleming Building 112, Houston, TX 77204-5003, USA; (A.B.); (T.S.N.); (B.J.L.); (J.-Y.L.); (R.V.); (S.S.)
- Vallark Pharma Pvt. Ltd., Genome Valley, Turkapally, Hyderabad 500078, India
| | - Sasha Sundstrom
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Fleming Building 112, Houston, TX 77204-5003, USA; (A.B.); (T.S.N.); (B.J.L.); (J.-Y.L.); (R.V.); (S.S.)
- Department of Chemistry and Biochemistry, Baylor Sciences Bldg. D.208, One Bear Place #97348, Waco, TX 76798, USA
| | - Jeremy A. May
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Fleming Building 112, Houston, TX 77204-5003, USA; (A.B.); (T.S.N.); (B.J.L.); (J.-Y.L.); (R.V.); (S.S.)
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17
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Varenikov A, Shapiro E, Gandelman M. Synthesis of Chiral α-CF 3-Substituted Benzhydryls via Cross-Coupling Reaction of Aryltitanates. Org Lett 2020; 22:9386-9391. [PMID: 33210926 DOI: 10.1021/acs.orglett.0c03673] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We describe a highly efficient approach toward α-CF3-substituted benzhydryls thanks to the employment of organotitanium(IV) based nucleophiles. The use of commercially available anesthetic halothane as a cheap fluorinated building block in a sequential one-pot nickel-catalyzed enantioselective cross-coupling reaction of aryl titanates allowed for the synthesis of chiral α-CF3-substituted benzhydryls in good yields and excellent enantioselectivities. Alternatively, α-CF3-benzyl bromides could be employed under similar conditions to obtain the same family of compounds in higher yields and excellent selectivities. A benzhydryl moiety is a common motif in many biologically active compounds, and their enantioenriched fluorinated analogs should be of great interest in the search for novel drugs and agrochemicals.
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Affiliation(s)
- Andrii Varenikov
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Technion City, Haifa 3200008, Israel
| | - Evgeny Shapiro
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Technion City, Haifa 3200008, Israel
| | - Mark Gandelman
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Technion City, Haifa 3200008, Israel
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18
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Liu H, Li Y, Wang DX, Sun MM, Feng C. Visible-Light-Promoted Regioselective 1,3-Fluoroallylation of gem-Difluorocyclopropanes. Org Lett 2020; 22:8681-8686. [PMID: 33112624 DOI: 10.1021/acs.orglett.0c03268] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A strategically novel protocol for ring-opening functionalization of aryl gem-difluorocyclopropanes (F2CPs), which allows an expedient construction of CF3-containing architectures via visible-light-promoted F-nucleophilic attack manifold, was disclosed. Single electron oxidation of F2CPs was ascribed as the critical step for the success of this transformation by prompting F-nucleophilic attack, as well as the ensuing C-C bond scission. The observed intriguing regioselectivity for fluoroincorporation in this reaction was rationalized by invoking the cation-stabilization property of gem-difluorine substituents and also the thermodynamic gains acquired from forming CF3 functionality. By using cost-effective fluorination reagent and readily available substrates, a broad collection of structurally diversified α-allyl-β-trifluoromethyl ethylbenzene derivatives could be obtained in generally good yields. Further mechanistic investigations proved the engagement of a benzylic radical intermediate in this transformation.
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Affiliation(s)
- Haidong Liu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Yi Li
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Ding-Xing Wang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Meng-Meng Sun
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Chao Feng
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
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19
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Kuang C, Zhou X, Xie Q, Ni C, Gu Y, Hu J. Generation of Carbocations under Photoredox Catalysis: Electrophilic Aromatic Substitution with 1-Fluoroalkylbenzyl Bromides. Org Lett 2020; 22:8670-8675. [PMID: 33095022 DOI: 10.1021/acs.orglett.0c03258] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel Friedel-Crafts-type alkylation of arenes to access valuable 1-fluoroalkyl-1,1-biaryl compounds is established under mild conditions. The key to success is the efficient generation of a destabilized benzylic carbocation intermediate via two consecutive single-electron transfer processes by virtue of visible-light photoredox catalysis. This unique activation pattern avoids using strong Lewis acids and high temperatures that are required for generation of destabilized carbocations in traditional Friedel-Crafts reactions. This protocol demonstrates the first example of photoredox-catalyzed heterolysis of electronically deactivated benzylic C-Br bonds for the formation of destabilized carbocation intermediates.
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Affiliation(s)
- Cuiwen Kuang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Xin Zhou
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Qiqiang Xie
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Chuanfa Ni
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Yucheng Gu
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire RG42 6EY, U.K
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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20
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Lin T, Pan Z, Tu Y, Zhu S, Wu H, Liu Y, Li Z, Zhang J. Design and Synthesis of TY‐Phos and Application in Palladium‐Catalyzed Enantioselective Fluoroarylation of
gem
‐Difluoroalkenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008262] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tao‐Yan Lin
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China
| | - Zhangjin Pan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China
| | - Youshao Tu
- College of Chemistry and Life Science Advanced Institute of Materials Science Changchun University of Technology Changchun 130012 China
| | - Shuai Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China
| | - Hai‐Hong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China
| | - Yu Liu
- College of Chemistry and Life Science Advanced Institute of Materials Science Changchun University of Technology Changchun 130012 China
| | - Zhiming Li
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Junliang Zhang
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
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21
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Lin TY, Pan Z, Tu Y, Zhu S, Wu HH, Liu Y, Li Z, Zhang J. Design and Synthesis of TY-Phos and Application in Palladium-Catalyzed Enantioselective Fluoroarylation of gem-Difluoroalkenes. Angew Chem Int Ed Engl 2020; 59:22957-22962. [PMID: 32893388 DOI: 10.1002/anie.202008262] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/07/2020] [Indexed: 01/10/2023]
Abstract
The first example of highly enantioselective fluoroarylation of gem-difluoroalkenes with aryl halides is presented by using a new chiral sulfinamide phosphine (Sadphos) type ligand TY-Phos. N-Me-TY-Phos can be easily synthesized on a gram scale from readily available starting materials in three steps. Salient features of this work including readily available starting materials, good yields, high enantioselectivities as well as broad substrate scope make this approach very practical and attractive. Notably, the asymmetric synthesis of an analogue of a biologically active molecule is also reported.
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Affiliation(s)
- Tao-Yan Lin
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China.,Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Zhangjin Pan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Youshao Tu
- College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, China
| | - Shuai Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Hai-Hong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Yu Liu
- College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, China
| | - Zhiming Li
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China
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22
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Chen L, Yang JC, Xu P, Zhang JJ, Duan XH, Guo L. Nickel-catalyzed Suzuki Coupling of Cycloalkyl Silyl Peroxides with Boronic Acids. J Org Chem 2020; 85:7515-7525. [DOI: 10.1021/acs.joc.0c00250] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Lei Chen
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jun-Cheng Yang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Pengfei Xu
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jun-Jie Zhang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Xin-Hua Duan
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li−Na Guo
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
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23
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Tsuji H, Hashimoto K, Kawatsura M. Nickel-Catalyzed Benzylic Substitution of Benzyl Esters with Malonates as a Soft Carbon Nucleophile. Org Lett 2019; 21:8837-8841. [DOI: 10.1021/acs.orglett.9b03475] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hiroaki Tsuji
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Keisuke Hashimoto
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Motoi Kawatsura
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
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24
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Chen J, Xu J, Zhou Y, Xie S, Gao F, Xu X, Xu X, Jin Z. Sequential ortho-C-H and ipso-C-O Functionalization Using a Bifunctional Directing Group. Org Lett 2019; 21:7928-7932. [PMID: 31516000 DOI: 10.1021/acs.orglett.9b02910] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Design of C-H activation directing groups that can serve as electrophiles for subsequent cross-coupling significantly improves the step economy of synthetic applications of directed C-H functionalization. Through using a well-defined bifunctional template, palladium-catalyzed ortho-C-H alkenylation and arylation of benzylic alcohols was achieved via an end-on nitrile-embedded 12-membered macrocyclic transition state. Thereafter, the directing template is used as a handle for palladium-catalyzed ipso-C-O cross-coupling to provide functionalized diarylmethanes.
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Affiliation(s)
- Jingjing Chen
- State Key Laboratory and Institute of Elementoorganic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Jiancong Xu
- State Key Laboratory and Institute of Elementoorganic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Yu Zhou
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Shuguang Xie
- State Key Laboratory and Institute of Elementoorganic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Feng Gao
- State Key Laboratory and Institute of Elementoorganic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Xiufang Xu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Xiaohua Xu
- State Key Laboratory and Institute of Elementoorganic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Zhong Jin
- State Key Laboratory and Institute of Elementoorganic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
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25
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Huang W, Hu M, Wan X, Shen Q. Facilitating the transmetalation step with aryl-zincates in nickel-catalyzed enantioselective arylation of secondary benzylic halides. Nat Commun 2019; 10:2963. [PMID: 31273211 PMCID: PMC6609707 DOI: 10.1038/s41467-019-10851-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 05/28/2019] [Indexed: 12/31/2022] Open
Abstract
Nickel-catalyzed asymmetric cross-coupling of secondary alkyl electrophiles with different nucleophiles represents a powerful strategy for the construction of chiral tertiary carbon centers. Yet, the use of aryl Grignard reagents or aryl zinc halides in many reactions typically resulted in low enantioselectivity, mainly due to their slow transmetalation step in the catalytical cycle and consequently the requirement of relatively high temperature. Here we report that the use of lithium aryl zincate [Ph2ZnBr]Li facilitates the transmetalation step of the nickel-catalyzed cross-coupling reaction. Based on this discovery, a highly enantioselective construction of fluoroalkyl-substituted stereogenic center by a nickel-catalyzed asymmetric Suzuki-Miyaura coupling of α-bromobenzyl trifluoro-/difluoro-/mono- fluoromethanes with a variety of lithium aryl zincates [Ph2ZnBr]Li that were in situ generated from the reaction of lithium organoboronate with 1.0 equivalent of ZnBr2 was described. Fluoroalkyl groups are widely found in pharmaceutical products. Here, the authors report a highly enantioselective nickel-catalyzed cross coupling method for the construction of fluoromethylated stereogenic centers via a highly reactive zincate species facilitating the transmetalation step in the nickel catalytic cycle.
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Affiliation(s)
- Weichen Huang
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032, Shanghai, People's Republic of China
| | - Mei Hu
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, Shandong Engineering Research Center for Fluorinated Material, University of Jinan, 250022, Jinan, China
| | - Xiaolong Wan
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032, Shanghai, People's Republic of China
| | - Qilong Shen
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032, Shanghai, People's Republic of China.
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26
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Akkarasamiyo S, Margalef J, Samec JSM. Nickel-Catalyzed Suzuki-Miyaura Cross-Coupling Reaction of Naphthyl and Quinolyl Alcohols with Boronic Acids. Org Lett 2019; 21:4782-4787. [DOI: 10.1021/acs.orglett.9b01669] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Sunisa Akkarasamiyo
- Department of Organic Chemistry, Stockholm University, 106 91 Stockholm, Sweden
| | - Jèssica Margalef
- Department of Organic Chemistry, Stockholm University, 106 91 Stockholm, Sweden
| | - Joseph S. M. Samec
- Department of Organic Chemistry, Stockholm University, 106 91 Stockholm, Sweden
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27
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Liu H, Ge L, Wang D, Chen N, Feng C. Photoredox‐Coupled F‐Nucleophilic Addition: Allylation of
gem
‐Difluoroalkenes. Angew Chem Int Ed Engl 2019; 58:3918-3922. [DOI: 10.1002/anie.201814308] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/18/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Haidong Liu
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Liang Ge
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Ding‐Xing Wang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Nan Chen
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Chao Feng
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
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28
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Liu H, Ge L, Wang D, Chen N, Feng C. Photoredox‐Coupled F‐Nucleophilic Addition: Allylation of
gem
‐Difluoroalkenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814308] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Haidong Liu
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Liang Ge
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Ding‐Xing Wang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Nan Chen
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Chao Feng
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
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29
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Hyde S, Veliks J, Ascough DM, Szpera R, Paton RS, Gouverneur V. Enantioselective rhodium-catalysed insertion of trifluorodiazoethanes into tin hydrides. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.11.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Synthesis of 2,2-diaryl-1,1-difluoroethenes via Pd-catalyzed dehydrosulfonylative cross-coupling of α-[difluoro(phenylsulfonyl)methyl]benzyl tosylates with arylboronic acids. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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31
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Jaman Z, Mufti A, Sah S, Avramova L, Thompson DH. High Throughput Experimentation and Continuous Flow Validation of Suzuki–Miyaura Cross‐Coupling Reactions. Chemistry 2018; 24:9546-9554. [PMID: 29920803 DOI: 10.1002/chem.201801165] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 04/21/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Zinia Jaman
- Department of Chemistry, Bindley Bioscience Centre Purdue University 1203 W State St West Lafayette IN 47906 USA
| | - Ahmed Mufti
- School of Chemical Engineering Purdue University 480 W Stadium Ave West Lafayette IN 47907 USA
| | - Samyukta Sah
- Department of Chemistry, Bindley Bioscience Centre Purdue University 1203 W State St West Lafayette IN 47906 USA
| | - Larisa Avramova
- Department of Chemistry, Bindley Bioscience Centre Purdue University 1203 W State St West Lafayette IN 47906 USA
| | - David H. Thompson
- Department of Chemistry, Bindley Bioscience Centre Purdue University 1203 W State St West Lafayette IN 47906 USA
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32
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Punna N, Das P, Gouverneur V, Shibata N. Highly Diastereoselective Synthesis of Trifluoromethyl Indolines by Interceptive Benzylic Decarboxylative Cycloaddition of Nonvinyl, Trifluoromethyl Benzoxazinanones with Sulfur Ylides under Palladium Catalysis. Org Lett 2018; 20:1526-1529. [DOI: 10.1021/acs.orglett.8b00237] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nagender Punna
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Pulakesh Das
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Véronique Gouverneur
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
- Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 688 Yingbin Avenue, 321004 Jinhua, China
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33
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Fang J, Peng Z, Yang Y, Wang J, Guo J, Gong H. Graphene-Oxide-Promoted Direct Dehydrogenative Coupling Reaction of Aromatics. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700673] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jingxian Fang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education, College of Chemistry; Xiangtan University; Xiangtan 411105 P. R. China
| | - Zhiyong Peng
- Chengda Pharmaceuticals Co., Ltd.; Huanghe Road 36, Economic Development Zone, Jiashan Zhejiang 314100 P. R. China
| | - Yun Yang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education, College of Chemistry; Xiangtan University; Xiangtan 411105 P. R. China
| | - Jiawei Wang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education, College of Chemistry; Xiangtan University; Xiangtan 411105 P. R. China
| | - Jiaying Guo
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education, College of Chemistry; Xiangtan University; Xiangtan 411105 P. R. China
| | - Hang Gong
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education, College of Chemistry; Xiangtan University; Xiangtan 411105 P. R. China
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34
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Zhou L, Zhu C, Loh TP, Feng C. Rh-Catalyzed C–H bond alkylation of indoles with α,α-difluorovinyl tosylate via indolyl group migration. Chem Commun (Camb) 2018; 54:5618-5621. [DOI: 10.1039/c8cc02183j] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
An unprecedented C–H alkylation of indoles was achieved with α,α-difluorovinyl tosylate through an indolyl group shift process enabled by fluorine substituents.
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Affiliation(s)
- Lu Zhou
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Chuan Zhu
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Teck-Peng Loh
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Chao Feng
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
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35
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Punna N, Harada K, Shibata N. Stille cross-coupling of secondary and tertiary α-(trifluoromethyl)-benzyl chlorides with allylstannanes. Chem Commun (Camb) 2018; 54:7171-7174. [DOI: 10.1039/c8cc03541e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A Stille cross-coupling reaction was developed for the first time by secondary (trifluoromethyl)benzyl chlorides and allylstannanes.
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Affiliation(s)
- Nagender Punna
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Gokiso
- Showa-ku
- Nagoya 466-5888
| | - Kyosuke Harada
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Gokiso
- Showa-ku
- Nagoya 466-5888
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences
- Nagoya Institute of Technology
- Gokiso
- Showa-ku
- Nagoya 466-5888
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36
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Wang CQ, Zhang Y, Feng C. Fluorine Effects on Group Migration via a Rhodium(V) Nitrenoid Intermediate. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708505] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Cheng-Qiang Wang
- Institute of Advanced Synthesis (IAS); School of Chemistry and Molecular Engineering; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Yu Zhang
- Institute of Advanced Synthesis (IAS); School of Chemistry and Molecular Engineering; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Chao Feng
- Institute of Advanced Synthesis (IAS); School of Chemistry and Molecular Engineering; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
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37
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Wang CQ, Zhang Y, Feng C. Fluorine Effects on Group Migration via a Rhodium(V) Nitrenoid Intermediate. Angew Chem Int Ed Engl 2017; 56:14918-14922. [DOI: 10.1002/anie.201708505] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Indexed: 12/30/2022]
Affiliation(s)
- Cheng-Qiang Wang
- Institute of Advanced Synthesis (IAS); School of Chemistry and Molecular Engineering; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Yu Zhang
- Institute of Advanced Synthesis (IAS); School of Chemistry and Molecular Engineering; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Chao Feng
- Institute of Advanced Synthesis (IAS); School of Chemistry and Molecular Engineering; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University; 30 South Puzhu Road Nanjing 211816 P. R. China
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