Liu, Chao Practical and efficient synthesis of various meso-functionalized porphyrins via simple ligand-free nickel-catalyzed C-O, C-N, and C-C cross-coupling reactions. [electronic resource] - The Journal of organic chemistry Apr 2007 - 2732-6 p. digital Publication Type: Journal Article ISSN: 0022-3263 Standard No.: 10.1021/jo0618728 doi