Hetero Diels–Alder reactions of 3,5-di-tert-butyl-o-benzoquinone with acyclic dienes: novel synthesis of 1,4-benzodioxines
Abstract
3,5-Di-tert-butyl-o-benzoquinone acts as a 1,4-dioxabutadiene in its reaction with acyclic dienes leading to 1,4-benzodioxines in very high yields.