Preparation of Tricyclic and Tetracyclic Benzoxepin Derivatives by One-Pot Enyne Metathesis/Diels-Alder Reaction

Abstract
Tricyclic and tetracyclic benzoxepin derivatives were prepared by one-pot enyne metathesis/Diels-Alder reactions starting from differently substituted 2-allyl-1-propargyloxybenzenes (endo stereoselectivity).