复合催化剂催化合成对羟基苯甲酸正丁酯  

N-butyl p-hydroxybenzoate of Sodium Bisulfate and a Inorganic Solid Acid Catalyst Erterification

作　　者：冯一佳[1] 熊双喜[1] 

机构地区：[1]台州学院医药化工学院,临海31700

出　　处：《科学技术与工程》2011年第20期4917-4919,共3页Science Technology and Engineering

摘　　要：研究了在一水硫酸氢钠复合催化剂存在的条件下,由正丁醇和对羟基苯甲酸高收率合成对羟基苯甲酸正丁酯。探讨了一水硫酸氢钠复合催化剂用量、正丁醇用量和反应时间,带水剂的选择等因素对催化合成对羟基苯甲酸正丁酯收率的影响。实验结果表明,当对羟基苯甲酸、正丁醇和硫酸氢钠的摩尔比为1∶2∶0.072,助催化剂在0.1 g、带水剂5 mL时,回流分水4 h,酯收率达92.0%,为最佳条件。N-butyl p-hydroxybenzoate was synthesized with high yield by esterification of n-butyl alcohol with phydroxybenzoic acid in the presence of sodium bisulfate monohydrate and A.The effects of amount of sodium bisulfate monohydrate and A,amount of n-butyl alcohol,amount of water-carring agent and reaction time on the yield of n-butiyl p-hydroxybenzoate were investigated.Ester field of 92.0% was obtained under the following condition： molar ratio of p-hydroxybenzoic acid,n-butyl alcohol and sodium bisulface 1：2：0.072,in the presence of the amount of A was 0.1 g and the amount of water-carring agent was 5 mL,refux for separating water for 4 h.

关 键 词：对羟基苯甲酸正丁酯 合成 硫酸氢钠复合催化剂 催化 

分 类 号：TQ245.24[化学工程—有机化工]