Primary 1,2-Diamine Catalysis (V): Efficient Asymmetric Aldol Reactions of Isatins with Cyclohexanone
摘要:
1,2-Diaminocyclohexane-hexanedioic acid has been demonstrated to catalyze the asymmetric aldol reactions of cycloketones and various isatin derivatives efficiently in MeOH-H2O. The corresponding products were obtained in good yields (70-90%) with high diastereoselectivity (up to 99:1 anti/syn) and enantioselectivity (up to 99% ee).