Lk. Zhang et al., A FACILE PHASE-TRANSFER-CATALYZED MICHAEL ADDITION OF ISOPROPYL 4-CHLOROBENZENESULFONYL ACETATE TO ALPHA-BETA-UNSATURATED ESTERS, Synthetic communications, 25(3), 1995, pp. 423-430
The Michael addition of isopropyl 4-chloro-benzenesulfonyl acetate to
alpha, beta-unsaturated esters was studied under PTC conditions. The m
ethod has the advantage of mild reaction conditions and high yield.