Highly functionalized pyrroles and pyrazoles can be synthesized from a domino Cu-catalyzed CN coupling/hydroamidation sequence. The scope and the generality of the method is noteworthy as a wide variety of substituents, either in the alkene or alkyne
“Domino Cu-Catalyzed C–N Coupling/Hydroamidation: A Highly Efficient Synthesis of Nitrogen Heterocycles”, Angew. Chem. Int. Ed., 2006, 45(42), 7079-7082.