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  Bi(I)-Catalyzed Transfer-Hydrogenation with Ammonia-Borane

Wang, F., Planas, O., & Cornella, J. (2019). Bi(I)-Catalyzed Transfer-Hydrogenation with Ammonia-Borane. Journal of the American Chemical Society, 141(10), 4235-4240. doi:10.1021/jacs.9b00594.

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ja9b00594_si_001.pdf (Supplementary material), 6MB
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 Creators:
Wang, Feng1, Author              
Planas, Oriol1, Author              
Cornella, Josep1, Author              
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1Research Group Cornellà, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_2466693              

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 Abstract: A catalytic transfer-hydrogenation utilizing a well-defined Bi(I) complex as catalyst and ammonia-borane as transfer agent has been developed. This transformation represents a unique example of low-valent pnictogen catalysis cycling between oxidation states I and III, and proved useful for the hydrogenation of azoarenes and the partial reduction of nitroarenes. Interestingly, the bismuthinidene catalyst performs well in the presence of low-valent transition-metal sensitive functional groups and presents orthogonal reactivity compared to analogous phosphorus-based catalysis. Mechanistic investigations suggest the intermediacy of an elusive bismuthine species, which is proposed to be responsible for the hydrogenation and the formation of hydrogen.

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Language(s): eng - English
 Dates: 2019-01-172019-02-282019-03-13
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/jacs.9b00594
 Degree: -

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Title: Journal of the American Chemical Society
  Other : J. Am. Chem. Soc.
  Abbreviation : JACS
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 141 (10) Sequence Number: - Start / End Page: 4235 - 4240 Identifier: ISSN: 0002-7863
CoNE: https://pure.mpg.de/cone/journals/resource/954925376870