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.