Reduction of carbon dioxide and organic carbonyls by hydrosilanes catalysed by the perrhenate anion

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Morris, Danny S. and Weetman, Catherine and Wennmacher, Julian T. C. and Cokoja, Mirza and Drees, Markus and Kühn, Fritz E. and Love, Jason B. (2017) Reduction of carbon dioxide and organic carbonyls by hydrosilanes catalysed by the perrhenate anion. Catalysis Science and Technology, 7 (13). pp. 2838-2845. ISSN 2044-4753 (https://doi.org/10.1039/c7cy00772h)

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Abstract

The simple perrhenate salt [N(hexyl)4][(ReO4)] acts as a catalyst for the reduction of organic carbonyls and carbon dioxide by primary and secondary hydrosilanes. In the case of CO2, this results in the formation of methanol equivalents via silylformate and silylacetal intermediates. Furthermore, the addition of alkylamines to the reaction mixture favours catalytic amine N-methylation over methanol production under certain conditions. DFT analysis of the mechanism of CO2 reduction shows that the perrhenate anion activates the silylhydride forming a hypervalent silicate transition state such that the CO2 can directly cleave a Si–H bond.

ORCID iDs

Morris, Danny S., Weetman, Catherine ORCID logoORCID: https://orcid.org/0000-0001-5643-9256, Wennmacher, Julian T. C., Cokoja, Mirza, Drees, Markus, Kühn, Fritz E. and Love, Jason B.;
  • Item type:Article
    ID code:73738
    Dates:
    Date
    Event
    7 July 2017
    Published
    8 June 2017
    Published Online
    23 May 2017
    Accepted
    Subjects:Science > Chemistry
    Department:Faculty of Science > Pure and Applied Chemistry
    Depositing user: Pure Administrator
    Date deposited:27 Aug 2020 16:07
    Last modified:04 Dec 2024 12:18
    URI:https://strathprints.strath.ac.uk/id/eprint/73738
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