A facile and efficient conjugate addition of 2-alkyl-2- (arylsulfonyl) acetates to the α, β-unsaturated compounds
LIU GUANGJIAN;ZHANG ZHENG;WANG YULIANG;SUN YUPING;BAI YALUO
Chin. J. Org. Chem. . 1995, (6): 590 -594 .