Asymmetric Synthesis XXIV: Chiral Salen-Titanium Complexes-Efficient Catalysts for Asymmetric Trimethyl Silylcyanation of Benzaldehyde - Pan, Weidong; Feng, Xiaoming; Gong, Liuzhu; Hu, Wenhao; Li, Zhi; Mi, Aiqiao; Jiang, Yaozhong (Synlett, 1996)