Palladium‐Catalyzed β‐(Hetero)arylation of α,β‐Unsaturated Valerolactams.

A method for the palladium-catalyzed arylation of α,β-unsaturated valerolactams is reported. This new protocol provides arylation products in yields up to 95% and is applicable to a wide array of aryl and heteroaryl bromides. The optimization, scope and limitations are described.