Intermolecular Three-Component Arylsilylation of Alkynes under Palladium/Copper Cooperative Catalysis

An intermolecular
three-component arylsilylation of alkynes has
been developed under mild palladium/copper cooperative catalysis.
The reaction proceeds through syn-addition of an
aryl group and a silyl group across the carbon–carbon triple
bond of an alkyne. This represents the first transition-metal-catalyzed
fully intermolecular arylsilylation of alkynes, and transformations
of the resulting products have also been demonstrated.