27. Jian-Hua Xie, Sheng Liu, Xiang-Hong Huo, Xu Cheng, Hai-Feng Duan, Bao-Ming Fan, Li-Xin Wang, Qi-Lin Zhou*, Ru(II)-SDP-complexes catalyzed asymmetric hydrogenation of ketones. The effect of alkali metal cation in the reaction,J. Org. Chem. 2005, 70, 2967-2973.
