malonic ester
Chemistry
noun
The diethyl ester, CH2(COOC2H5)2, of malonic acid, which is a liquid widely used in synthesis, as of carboxylic acids RR′C(COOH)2 or RR′CHCOOH by alkylation with alkyl halides (malonic ester synthesis).
Origin
Late 19th century; earliest use found in Chemical News.