Atom-economical chemoselective synthesis of furocoumarins via cascade palladium catalyzed oxidative alkoxylation of 4-oxohydrocoumarins and alkenes†
Abstract
A novel and efficient procedure for the synthesis of furo[3,2-c]coumarins from readily available 4-oxohydrocoumarins and alkenes in the presence of a catalytic amount of Pd(CF3COO)2 has been developed. Atom-economical characteristics and mild conditions of this method are in accord with the concept of modern green chemistry.