S,Sâ²-Diethyl dithiomalonate 1 undergoes concomitant alkylation reaction and Michael addition with Ï-iodo-α,β-unsaturated ketones; the dithiomalonate group present in the cyclization products can be easily reduced by Raney nickel to the ethanol level.
S,Sα-二
硫代
丙二酸二乙酯 1 与α-
碘-α,β-不饱和酮同时发生烷基化反应和迈克尔加成反应;环化产物中存在的二
硫代
丙二酸基团可以很容易地被雷尼
镍还原至
乙醇水平。