Simple Direct Synthesis of New 1-Heterocyclamino-3-Carbonylaminopyrroles by Reaction of Heterocyclic Azoalkenes with β-Ketoamides

Abstract

Pyrrole and several its derivatives have been subjected to extensive chemical investigations, while substituted 1-aminopyrroles remain a class of compounds about which relatively little is known due to the far from trivial problem sposed by their syntheis. In fact, 1-aminopyrroles appear to be prepared mainly by direct reactionfrom conjugated azoalkenes,2 that unfortunately represent a class of relatively little