Jl. Delepine et al., PREPARATION OF DIETHYL 2-ALKOXYMETHYLMALONATE, 2-PHENYLSELENOMETHYLMALONATE AND 2-PHENYLTHIOMETHYLMALONATE, Synthetic communications, 26(15), 1996, pp. 2819-2829
Title compounds were obtained either by alkylation of the sodium deriv
ative of diethyl malonate or by the conjugate addition to diethyl meth
ylenemalonate 4. When reactions with 4 were run in basic medium two su
ccessive Michael additions occured.