4.6 Article

Selective Metal-Free Hydrosilylation of CO2 Catalyzed by Triphenylborane in Highly Polar, Aprotic Solvents

Journal

CHEMISTRY-A EUROPEAN JOURNAL
Volume 22, Issue 23, Pages 7730-7733

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201601006

Keywords

boranes; carbon dioxide; chemoselectivity; hydrosilylation; solvent effects

Funding

  1. Deutsche Forschungsgemeinschaft through the International Research Training Group Selectivity in Chemo- and Biocatalysis
  2. Alexander von Humboldt Foundation

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Triphenylborane (BPh3) in highly polar, aprotic solvents catalyzes hydrosilylation of CO2 effectively under mild conditions to provide silyl formates with high chemoselectivity (> 95%) and without over-reduction. This system also promotes reductive hydrosilylation of tertiary amides as well as dehydrogenative coupling of silane with alcohols.

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