Highly efficient chemoselective synthesis of polysubstituted pyrroles via isocyanide-based multicomponent domino reaction.

A multicomponent domino reaction for the chemoselective, catalyst-free synthesis of polysubstituted pyrroles from readily available isocyanides, primary or secondary amines, and gem-diactivated olefins has been developed. Structurally diverse pyrroles were obtained in moderate to good yields under mild conditions.