Utilization of Solid Acid SO 4 2-/TiO 2 Cooperated with CinchonaAlkaloid Quinidine to Asymmetric Mannich Organocatalysis
Yao Yuanyong, Shu Hua, Xing Mingming, Chen Shixue, Lu Zhongying, Tang Bangcheng
Chin. J. Org. Chem. . 2016, (1): 196 -201 .  DOI: 10.6023/cjoc201507036