Copper(II)-Catalyzed Enantioselective Intramolecular Cyclization of <i>N</i>-Alkenylureas

Abstract

The first Cu(II)-catalyzed highly enantioselective intramolecular cyclization of N-alkenylureas was developed for the concise assembly of chiral vicinal diamino bicyclic heterocycles. Facile removal of carbonyl group of the carbamido moiety allowed for ready access to enantioenriched cyclic vicinal diamines.