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Zhong Z, Wu H, Chen X, Luo Y, Yang L, Feng X, Liu X. Visible-Light-Promoted Enantioselective Acylation and Alkylation of Aldimines Enabled by 9-Fluorenone Electron-Shuttle Catalysis. J Am Chem Soc 2024; 146:20401-20413. [PMID: 38981037 DOI: 10.1021/jacs.4c06044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Chiral acyclic α-tertiary amino ketones are widely present in various natural products and pharmaceuticals; however, the direct synthesis of this pharmacophore through a robust strategy still presents significant challenges. The emerging photocatalysis provides a powerful approach to construct chemical bonds that are difficult to form via a traditional two-electron pathway. Herein, we developed visible-light-induced chiral Lewis acid-catalyzed highly enantioselective acylation/alkylation of aldimines enabled by cooperative FLN (9-fluorenone) electron-shuttle catalysis via radical addition. An array of α-tertiary amino ketones, β-amino alcohols, and chiral amines were achieved with high yields and good to excellent stereocontrol (87 examples, up to 84% yield, 96% ee). These products can be easily transformed into valuable and bioactive skeletons. Extensive control experiments, detailed mechanism studies, and density functional theory calculations elucidated the reaction process and highlighted the crucial role played by FLN.
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Affiliation(s)
- Ziwei Zhong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Hongda Wu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaofan Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yao Luo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Longqing Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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2
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Qian HD, Li ZH, Deng S, Yao C, Xiang HM, Xu G, Geng ZQ, Wang Z, Chen L, Liu C, Zhu C, Qi X, Xu H. Catalytic Asymmetric Vinylogous and Bisvinylogous Propargylic Substitution. J Am Chem Soc 2022; 144:15779-15785. [PMID: 35976107 DOI: 10.1021/jacs.2c06560] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Distinct regio- and enantioselectivity control in copper-catalyzed vinylogous and bisvinylogous propargylic substitution has been accomplished by using a novel chiral N,N,P ligand. The developed method provides an efficient and selective approach to an array of highly enantioenriched alkynyl unsaturated carbonyl compounds. Salient features include excellent functional group tolerance and broad substrate scope. The synthetic utility of the developed method is further demonstrated by a gram-scale synthesis and by application to a range of transformations including enantioselective synthesis of unique challenging compounds.
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Affiliation(s)
- Hao-Dong Qian
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P.R. China
| | - Zhi-Heng Li
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P.R. China
| | - Shuang Deng
- Engineering Research Center of Organosilicon Compounds & Materials Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
| | - Chaochao Yao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P.R. China
| | - Hua-Ming Xiang
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P.R. China
| | - Guang Xu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P.R. China
| | - Zi-Qi Geng
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P.R. China
| | - Zihao Wang
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P.R. China
| | - Linfeng Chen
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P.R. China
| | - Chunrong Liu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P.R. China
| | - Cuiju Zhu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P.R. China
| | - Xiaotian Qi
- Engineering Research Center of Organosilicon Compounds & Materials Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
| | - Hao Xu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P.R. China
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3
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Guan M, Wang S, Luo Y, Cao W, Liu X, Feng X. Catalytic asymmetric addition of thiols to silyl glyoxylates for synthesis of multi-hetero-atom substituted carbon stereocenters. Chem Sci 2021; 12:7498-7503. [PMID: 34163840 PMCID: PMC8171345 DOI: 10.1039/d1sc01096d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
A chiral Lewis acid-catalyzed enantioselective addition of thiols to silyl glyoxylates was developed. The reaction proceeds well with a broad range of thiols and acylsilanes, affording the target tertiary chiral α-silyl–α-sulfydryl alcohols with multi-hetero-atom carbon stereocenters in excellent yields (up to 99%) and enantioselectivities (up to 98% ee). A series of control experiments were conducted to elucidate the reaction mechanism. Enantioselective addition of thiols to silyl glyoxylates for construction of a multi-hetero-atom substituted carbon stereocenter was described.![]()
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Affiliation(s)
- Mingming Guan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China http://www.scu.edu.cn/chem_asl/
| | - Shiyu Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China http://www.scu.edu.cn/chem_asl/
| | - Yao Luo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China http://www.scu.edu.cn/chem_asl/
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China http://www.scu.edu.cn/chem_asl/
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China http://www.scu.edu.cn/chem_asl/
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China http://www.scu.edu.cn/chem_asl/
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4
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Wu YH, Zhang LY, Wang NX, Xing Y. Recent advances in the rare-earth metal triflates-catalyzed organic reactions. CATALYSIS REVIEWS 2020. [DOI: 10.1080/01614940.2020.1831758] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yue-Hua Wu
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
| | - Lei-Yang Zhang
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
| | - Nai-Xing Wang
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
| | - Yalan Xing
- Department of Chemistry, William Paterson University of New Jersey, New Jersey, United States
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5
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Dai L, Li X, Zeng Z, Dong S, Zhou Y, Liu X, Feng X. Catalytic Asymmetric Acyloin Rearrangements of α-Ketols, α-Hydroxy Aldehydes, and α-Iminols by N, N'-Dioxide-Metal Complexes. Org Lett 2020; 22:5041-5045. [PMID: 32610927 DOI: 10.1021/acs.orglett.0c01626] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A highly enantioselective acyloin rearrangement of cyclic α-ketols has been developed with a chiral Al(III)-N,N'-dioxide complex as catalyst. This strategy provided an array of optically active 2-acyl-2-hydroxy cyclohexanones in moderate to good yields with high enantioselectivities. The asymmetric isomerizations of acyclic α-hydroxy aldehydes and α-iminols were achieved as well under modified conditions, affording the corresponding chiral α-hydroxy ketones and α-amino ketones in moderate results. Moreover, further transformations of product to enantioenriched diols were carried out.
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Affiliation(s)
- Li Dai
- Key Laboratory of Green Chemistry &Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiangqiang Li
- Key Laboratory of Green Chemistry &Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Zi Zeng
- Key Laboratory of Green Chemistry &Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry &Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry &Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry &Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry &Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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6
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Nakamura S, Matsuzaka K, Hatanaka T, Funahashi Y. Enantioselective Vinylogous Mannich Reaction of Acyclic Vinylketene Silyl Acetals with Ketimines Using Chiral Bis(imidazoline)–Cu(II) Catalysts. Org Lett 2020; 22:2868-2872. [DOI: 10.1021/acs.orglett.0c00289] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shuichi Nakamura
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
- Frontier Research Institute for Material Science, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Koichi Matsuzaka
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Tsubasa Hatanaka
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Yasuhiro Funahashi
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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7
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Kang KT, Park SH, Ryu DH. Enantioselective Strecker and Allylation Reactions with Aldimines Catalyzed by Chiral Oxazaborolidinium Ions. Org Lett 2019; 21:6679-6683. [PMID: 31429578 DOI: 10.1021/acs.orglett.9b02280] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Chiral oxazaborolidinium ion (COBI)-catalyzed enantioselective nucleophilic addition reactions of aldimines using tributyltin cyanide and allyltributylstannane have been developed. Various α-aminonitriles and homoallylic amines were synthesized in high yield (up to 98%) with high to excellent enantioselectivity (up to 99% ee). A rational mechanistic model for the complex of COBI and aldimine is provided to account for these enantioselective reactions.
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Affiliation(s)
- Ki-Tae Kang
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Sang Hyun Park
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
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