Platinum‐Catalyzed Multicomponent Alcoholysis/Hydrosilylation and Bis‐hydrosilylation of Alkynes with Dihydrosilanes

Abstract A new method for the hydrosilylation of alkynes controlled by a platinum catalyst with a monophosphine ligand (called TBSO‐MOP) was explored. The platinum‐catalyzed multicomponent and sequential silylation reaction involving alkynes, alcohols, and dihydrosilanes resulted in the highly stereoselective and high‐yielding construction of functional (E)‐vinylsilyl ethers. Moreover, the one‐pot bis‐hydrosilylation of terminal alkynes with dihydrosilanes was also achieved with the same platinum catalyst system.