By use of dodecatungstophosphoric acid as catalyst,butyl para hydroxybenzoate was synthesized by esterification of para hydroxybenzoic acid and butyl alcohaol.

• 以十二钨磷酸为催化剂，由对羟基苯甲酸和正丁醇酯化制得对羟基苯甲酸丁酯。