A New Synthesis of Aldehydes by the Palladium-Catalyzed Reaction of 2-Pyridinyl Esters with Hydrosilanes

A new synthesis of aldehydes by the palladium-catalyzed reaction of 2-pyridinyl esters with hydrosilanes is described. The reaction is applicable to the preparation of aliphatic, aromatic, and α,β-unsaturated aldehydes. Various functional groups, such as fluoro, methoxy, aldehyde, acetal, and ester, are tolerated.