Novel dienone-phenol type rearrangement of 4,4-disubstituted cyclohexadienone system using thiosilane

Abstract

Thiosilane and a catalytic amount of a Brønsted acid mediate the novel domino-type rearrangement reaction of the 4,4-disubstituted cyclohexadienones to produce the 3,4-disubstituted benzenethioethers; the key step is 1,2-addition of thiosilane to dienone.