A facile preparation of 3-chloro-4-acyl-3-sulfolenes as common intermediates for the synthesis of thieno-, pyrazolo- and lsoxazolo-3-sulfolenest
Abstract
A convenient preparation of 3-chloro-4-acyl-3-sulfolenes and their use in the synthesis of thieno-, pyrazoio- and isoxazoio-3-suifolenes as equivalents to the heterocyclic o-quinodimethanes are described.