Polyfunctional 1,3-Dithiolanes from 5,5-Dialkyl-4-Cyanomethylene-1,3-Oxathiolan-2-Ones

Abstract

The interaction of 5,5-dialkyl-4-cyanomethylene-1,3-oxathiolan-2-ones with diethylamine (without catalyst), aliphatic alcohols and ethanethiol (in the presence of triethylamine) occurs under mild conditions (room temperature, 3-12 r h) with ring opening and the subsequent dimerization to give polyfunctional 1,3-dithiolanes.