An efficient synthesis of 3-ethoxypyrrolidine-2,5-diones and cis-2,3,3a,6a-tetrahydrofuro[2,3-c]pyrrole-4,6(5H)-diones from β-cyanocarboxylic acids

Abstract

A simple and convenient procedure for the synthesis of a new series of 3-ethoxypyrrolidine-2,5-diones and cis-2, 3,3a,6a-tetrahydrofuro[2,3-c]pyrrole-4,6(5H)-diones derivatives is described. All compounds were obtained from the direct cyclization of two β-cyanocarboxylic acids with primary amines and amino alcohols in short reaction time and good yields.