Palladium/Me₃SiOTf-Catalyzed Bis-silylation of α,β-Unsaturated Carbonyl Compounds without Involving Oxidative Addition of Disilane

In the presence of a catalytic amount of Me(3)SiOTf and palladium(0), the addition of disilane to alpha,beta-unsaturated carbonyl compounds proceeds under very mild conditions via eta(3)-siloxyallylpalladium generated by the reaction of enone, enal, or aromatic aldehyde with palladium and Me(3)SiOTf.