Cyanoethylation and Carboxyethylation of 5-Benzofuryl-4-substituted 4H-1,2,4-Triazole-3-thiols

摘要

Base-catalyzed reactions of 5-benzofuryl-4-substituted 4H-1,2,4-triazole-3-thiols with acrylonitrile and acrylic acid afforded 2-(2-cyanoethyl)- or 2-(2-carboxyethyl)triazoline-3-thiones. Attempts to obtain the corresponding sulfanyl derivatives failed.