活性炭固载对甲苯磺酸催化合成尼泊金丙酯  

The synthesis of propyl p-hydroxybenzoate catalyzed by activated carbon supported para-toluenesulfonic acid

作　　者：王勤[1] 刘玲[2] 罗志臣[1] 

机构地区：[1]扬州工业职业技术学院化学工程系,江苏扬州225127 [2]中国石油吉林石化分公司研究院,吉林吉林132021

出　　处：《化工科技》2009年第5期27-29,共3页Science & Technology in Chemical Industry

摘　　要：以对羟基苯甲酸和正丙醇为原料,活性炭固载对甲苯磺酸为催化剂,回流脱水酯化直接合成对羟基苯甲酸丙酯。催化剂循环使用5次,酯化率仍可高达90.0%。该反应具有产率高、反应时间短、操作简单等优点。The synthesis of propyl p-hydroxybenzoote from p-hydroxybenzoic acid and propanol using activated carbon supported para toluenesulfonic acid as the catalyst under the circumfluent dehydration conditions is described. The yield of esterification product could get 90. 0%, when the catalyst was used 5 times without any treatment. This reaction has advantages of high yields, short reaction time, and easy of workup.

关 键 词：尼泊金丙酯 对甲苯磺酸 对羟基苯甲酸 酯化 

分 类 号：O625.523[理学—有机化学]