Direct Construction of Imino-pyrrolidine-thione Scaffold via Isocyanide-Based Multicomponent Reaction

摘要

A novel and efficient method has been developed for the direct construction of imino-pyrrolidine-thione scaffold via the coupling of isocyanides, heterocyclic thiols, and gem-dicyano olefins. Smiles rearrangement followed by intramolecular cyclization leads directly to formation of the core structure. A water-acceleration effect is observed, promoting most of the reactions to go to completion within a short reaction time.