Hydrosilylation of Allenes over Palladium‐Gold Alloy Catalysts: Enhancing Activity and Switching Selectivity by the Incorporation of Palladium into Gold Nanoparticles
An efficient synthetic route to alkenylsilanes involving the hydrosilylation of allenes with supported Pd‐Au alloy catalysts has been developed. The incorporation of Pd atoms into Au nanoparticles not only remarkably enhanced the catalytic activity but also drastically changed the product selectivity. Pd‐Au alloy catalysts with a low Pd/Au ratio were highly effective for the hydrosilylation at an ambient temperature, and the corresponding β‐alkenylsilanes were obtained as a main product in good to high yields.