【摘要】 对乙醇、丙醇、丁醇和对羟基苯甲酸为原料合成尼泊金酯的催化剂及反应条件进行了研究。实验表明 ,固体超强酸 SO2 - 4 /Ti O2 Al2 O3是合成尼泊金酯的良好催化剂 ,最佳的反应条件为 :醇酸比为 4∶ 1 ( mol比 ) ,催化剂用量为反应物质量的 4 % ,反应时间为 5h。上述条件下 ,尼泊金乙酯的产率为 85% ,尼泊金丙酯的产率为94 % ,尼泊金丁酯的产率为 92 %。更多还原

【Abstract】 The synthesis of Nipagin esters were studied with ethanol, propanol, butanol and phydroxybenzoic acid as reactants, and the catalyst and reaction conditions were selected. It showed that the super solid acid SO 2- 4/TiO 2Al 2O 3 was an excellent catalyst for the synthesis of Nipagin esters, and the optimum reaction conditions was that the molar ratio of alcohol to acid was 4/1, the mass ratio of the catalyst used to the reactants was 4%, and the reaction time was 5 h. Under this conditions, the yield of ethyl esters was 85%, propyl ester 94% and butyl ester 92%.更多还原