Patent: Ligands for Metals and Improved Metal-Catalyzed Processes Based Thereon. 40Patent Authors: Buchwald, S.L.; Old, D.W.; Wolfe, J.P.; Palucki, M.; Kamikawa, K.U.S. Patent No. 7,560,582Date Issued: July 14, 2009Patent Title: Ligands for Metals and Improved Metal-Catalyzed Processes Based Thereon.