Diethyl glutarate was synthesized using glutaric anhydride and ethanol, which were separated from dicarboxylic acid, as raw material, heteropoly acid as catalyst.

• 以从二羧酸中分离出的戊二酸酐和乙醇为原料，用杂多酸为催化剂，合成了戊二酸二乙酯。