Palladium(0)‐Catalyzed Three‐Component Coupling Reaction of Allyl Benzoates, Carbon Monoxide, and Zincioesters

A one-pot reaction provides good yields of highly functionalized β,γ-unsaturated ketones of type 1 (n = 1, 2; R = H, Ph, etc.) from the Pd0-catalyzed coupling of an allyl benzoate, CO, and a β- or γ-zincioester. This transformation of CO into a carbonyl group shows that organozinc compounds still have novel applications in organic synthesis.