A Novel Assembly of Substituted Pyrroles by Acid‐Catalyzed Sequential Three‐Component Reaction of Amines, Alkynoates, and 1,2‐Diaza‐1,3‐dienes

A novel protocol for the assembly of polysubstituted pyrroles has been developed through the acid-catalyzed, sequential three-component reaction of primary aliphatic amines, alkynoates and 1,2-diaza-1,3-dienes (DDs). This methodology proceeds with complete chemo-/regioselectivity involving first formation of an enamino ester intermediate, in situ Michael addition with azo-ene compounds and subsequent intramolecular ring closure.

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