Synthesis of Allenamides by Copper-Catalyzed Coupling of Allenyl Halides with Amides, Carbamates, and Ureas

Abstract
A variety of N-substituted allenes have been synthesized by the copper-catalyzed coupling reaction between allenyl halides and amides, carbamates, and ureas. The reactions proceed in good to excellent yield using 7 mol % copper thiophenecarboxylate and 15 mol % of a diamine catalyst.