Lewis Acid‐Catalyzed Isomerization of Donor‐Acceptor Cyclobutanes in the Presence of Thiourea: A New Efficient Route to 2‐ Arylallylmalonates

Abstract

A straightforward access to various substituted 2‐arylallylmalonates from readily available donor‐Acceptor (D‐A) cyclobutanes catalyzed by Al(OTf)3 in the presence of thiourea is reported. This is a new and convenient approach for isomerization of donor‐acceptor cyclobutanes into 2‐arylallylmalonates.