ChemInform Abstract: Synthesis of Aminopyridines and Aminopyridones by Cobalt-Catalyzed [2 + 2 + 2] Cycloadditions Involving Yne-Ynamides: Scope, Limitations, and Mechanistic Insights. - Garcia, Pierre; Evanno, Yannick; George, Pascal; Sevrin, Mireille; Ricci, Gino; Malacria, Max; Aubert, Corinne; Gandon, Vincent (ChemInform, 2012)