Patent: Copper-Catalyzed Formation of Carbon-Heteroatom and Carbon-Carbon Bonds. 24Patent Authors: Buchwald, S.L.; Klapars, A; Antilla, J.C.; Job, G.E.; Wolter, M.; Kwong, F.Y.; Nordmann, G.; Hennessy, E.J.U.S. Patent No. 6,759,554Date Issued: July 6, 2004Patent Title: Copper-Catalyzed Formation of Carbon-Heteroatom and Carbon-Carbon Bonds.