4-OXOPERHYDROBENZO{8 b{9 THIOPHENES AND THEIR PREPARATION

摘要

Alkyl-substituted 4-oxoperhydrobenzo[b]thiophenes are produced by reacting 2-allyl-2-cyclohexen-1-one, or a derivative having an alkyl substituent on the side chain, with hydrogen sulfide at ambient temperatures. The products can be dehydrogenated to produce 4-hydroxybenzo[b]-thiophene derivatives and converted to carbamate insecticides.