Use of Cyclic α,β-Unsaturated Trifluoromethyl Sulfones in Diels-Alder Reactions and Michael Additions

Abstract

Vinylic trifluoromethyl triflones, in particular cyclic ones, constitute potentially valuable building-blocks for further syntheses. Their uses in Diels-Alder cycloadditions as dienophiles or dienes led only to moderate yields of expected products. However, under fluoride activation, they afforded unexpected tricycle compounds.