Asymmetric Michael Addition between Nitroolefins and Sulfur Ylides Catalyzed by a Thiourea Organocatalyst
SUN Xiang-Ting, ZHANG Dong-Ju, FENG Da-Cheng, LIU Cheng-Bu
Acta Phys. -Chim. Sin. . 2012, (03): 561 -566 .  DOI: 10.3866/PKU.WHXB201201112