Journal of Organic Chemistry 2007-07-20

Tandem Knoevenagel-Michael addition of aryl sulfonimines with diethyl malonate for synthesis of arylidene dimalonates.

Renhua Fan, Weizi Wang, Dongming Pu, Jie Wu

Index: J. Org. Chem. 72(15) , 5905-7, (2007)

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Abstract

A highly efficient, one-flask tandem Knoevenagel-Michael addition reaction of sulfonimines with diethyl malonate in the presence of a catalytic amount of base affords the corresponding arylidene dimalonates in good to excellent yields.