Diethylmalonyl dichloride has been used in the preparation of:5,5-diethyl-1,3-dihydroxybarbituric acid (N,N′-dihydroxyveronal) via condensation with 1,3-dibenzyloxyurea1,11-dibronzo-4,8-diaza-6,6-diethyl-5,7-dioxoundecaneamide containing crowned derivatives of dithiomaleonitrile
