【摘要】 采用微波辐射技术,以对甲苯磺酸(PTSA)为催化剂,没食子酸和异丁醇为原料,直 接酯化合成没食子酸异丁酯。研究了微波功率、辐射时间、催化剂的用量、酸醇摩尔比等因素 对于酯化反应产率的影响,井对产品进行了分析和鉴定。通过正交试验探讨出最佳的反应条 件为:没食子酸与异丁醇摩尔比1:17,没食子酸与催化剂摩尔比1:0．05,微波功率510 W (没食子酸用量10．94 g),辐射时间60 min,平均酯化产率为86．3％。更多还原

【Abstract】 Iso-butyl gallate was synthesized by esterification of gallic acid with iso-butyl alcohol catalyzed by p-toluenesulfonie acid (PTSA) under microwave irradiation.The optimum reaction condition was as follows: molar ratio of gallic acid to iso-butyl alcohol 1:17,molar ratio of gallic acid to catalyst 1:0.05,microwave irradiation power 510 W ( gallic acid 10.94 g) ,for 60 min.Average yield of iso-butyl gallate was 86.3 % .更多还原