Hydrazone–Pd-catalyzed direct intermolecular reaction of o-alkynylphenols with allylic acetates†
Abstract
We found that the hydrazone–Pd-catalyzed direct intermolecular reaction of o-alkynylphenols with allylic acetates afforded the corresponding 2-substituted-3-allylbenzofuran derivatives. This reaction proceeded smoothly at room temperature using a hydrazone–Pd catalyst system.