Asymmetric hydrogenation of N-alkyl and N-aryl ketimines using chiral cationic Ru(diamine) complexes as catalysts: the counteranion and solvent effects, and substrate scope - Chen, Fei; Ding, Ziyuan; He, Yanmei; Qin, Jie; Wang, Tianli; Fan, Qing-Hua (Tetrahedron, 2012)
Keywords: amines; Anions; Asymmetric catalysis; Bearing; Catalysis; Catalysts; Cationic; Chemistry; Chemistry, Organic; Diamine ligand; enantiomers; Hydrogenation; Imines; Ketimines; methylene chloride; phosphoric acid; Physical Sciences; Ruthenium; Science & Technology; solvents; Diamine ligand; Ruthenium; Ketimines; Asymmetric catalysis; Hydrogenation; ALDOL ADDITIONS; PHOSPHINE-OXAZOLINE LIGANDS; C-SYMMETRIC COPPER(II) COMPLEXES; ACYCLIC IMINES; KETONES; HIGHLY ENANTIOSELECTIVE HYDROGENATION; IRIDIUM COMPLEXES; LEWIS-ACIDS; EFFICIENT; REDUCTIVE AMINATION