Naming Carboxylic Acid Derivatives Acid Anhydrides,RCO2COR' Symmetrical anhydrides of monocarboxylic acids and cyclic anhydrides of dicarboxylic acids named by replacing acid with anhydride H3C CH3 Acetic anhydride Benzoic anhydride Succinic anhydride Acid Anhydrides, RCO2COR′ ▪ Symmetrical anhydrides of monocarboxylic acids and cyclic anhydrides of dicarboxylic acids named by replacing acid with anhydride Naming Carboxylic Acid Derivatives