Chemistry Letters, Vol.35, No.7, 730-731, 2006
Peri-selectivity in thermolysis of acyloxybenzocyclobutenes possessing alpha,beta-unsaturated carbonyl group: Synthesis of 2-benzoxocin derivatives
1-Acyloxybenzocyclobutenes, having an alpha, beta, un saturated carbonyl group at C I position, undergo the periselective thermal ring expansion to give 2-benzoxocin derivatives in high yields.