Enantioselective Conjugate Addition of Diethylzinc to Vinylogous Imines Generated in situ from Sulfonyl Indoles
Ni Chengyan, Li Wenke, He Long, Liu Quanzhong, Kang Tairan
Chin. J. Org. Chem. . 2012, (12): 2322 -2327 .  DOI: 10.6023/cjoc201207011