Evidence for the “cocktail” nature of platinum-catalyzed alkyne and alkene hydrosilylation reactions

Evidence of the involvement of a "cocktail"-type catalytic system in the alkyne and alkene hydrosilylation reaction in the presence of platinum on a carbon support is reported. The nature of the catalytic system was studied by employing a consistently developed experimental procedure. The existence of a "cocktail"-type catalysis pathway was shown for the hydrosilylation reaction catalyzed by platinum on multiwalled carbon nanotubes (Pt/MWCNT) and platinum on charcoal (Pt/C), with silane variation. The type of catalyst had a significant influence on the "cocktail"-type system formation. Involvement of a multichannel catalytic system requires critical rethinking of the principles of catalyst design. Another approach should be utilized to achieve high activity, stability and recycling compared to classical heterogeneous catalytic systems.

Reference: Catal. Sci. Technol., 2022, ASAP

DOI: 10.1039/D1CY02006D