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Shi L, Bao RLY, Zheng L, Zhao R. B(C6
F5
)3
-Catalyzed Reduction of Cyclic N
-Sulfonyl Ketimines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900706] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Lei Shi
- School of Science; Harbin Institute of Technology; 518055 Shenzhen China
| | - Robert Li-Yuan Bao
- School of Science; Harbin Institute of Technology; 518055 Shenzhen China
| | - Limin Zheng
- School of Science; Harbin Institute of Technology; 518055 Shenzhen China
| | - Rong Zhao
- School of Science; Harbin Institute of Technology; 518055 Shenzhen China
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Ding F, Zhang Y, Zhao R, Jiang Y, Bao RLY, Lin K, Shi L. B(C 6F 5) 3-Promoted hydrogenations of N-heterocycles with ammonia borane. Chem Commun (Camb) 2017; 53:9262-9264. [PMID: 28771256 DOI: 10.1039/c7cc04709f] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A transition-metal-free method for the B(C6F5)3-promoted hydrogenations of N-heterocycles using ammonia borane under mild reaction conditions has been developed. The reaction affords a broad range of hydrogenated products in moderate to good yields. The enantioselective versions for the corresponding products were also investigated via our approach, showing good feasibility.
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Affiliation(s)
- Fangwei Ding
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China. and Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China
| | - Yiliang Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China. and Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China
| | - Rong Zhao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China. and Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China
| | - Yanqiu Jiang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
| | - Robert Li-Yuan Bao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China. and Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China
| | - Kaifeng Lin
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
| | - Lei Shi
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China. and Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China
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Oestreich M, Hermeke J, Mohr J. A unified survey of Si-H and H-H bond activation catalysed by electron-deficient boranes. Chem Soc Rev 2015; 44:2202-20. [PMID: 25679769 DOI: 10.1039/c4cs00451e] [Citation(s) in RCA: 392] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The bond activation chemistry of B(C6F5)3 and related electron-deficient boranes is currently experiencing a renaissance due to the fascinating development of frustrated Lewis pairs (FLPs). B(C6F5)3's ability to catalytically activate Si-H bonds through η(1) coordination opened the door to several unique reduction processes. The ground-breaking finding that the same family of fully or partially fluorinated boron Lewis acids allows for the related H-H bond activation, either alone or as a component of an FLP, brought considerable momentum into the area of transition-metal-free hydrogenation and, likewise, hydrosilylation. This review comprehensively summarises synthetic methods involving borane-catalysed Si-H and H-H bond activation. Systems corresponding to an FLP-type situation are not covered. Aside from the broad manifold of C=X bond reductions and C=X/C-X defunctionalisations, dehydrogenative (oxidative) Si-H couplings are also included.
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Affiliation(s)
- Martin Oestreich
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, D-10623 Berlin, Germany.
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Barcelos RC, Zeoly LA, Rodrigues MT, Ferreira BRV, Eberlin MN, Coelho F. Morita–Baylis–Hillman adducts as building blocks of heterocycles: a simple approach to 4-substituted pyrazolones, and mechanism investigation via ESI–MS(/MS). MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1427-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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