氨基磺酸催化合成对羟基苯甲酸正丁酯  

Synthesis of n-Butyl p-Hydroxy Benzoate Catalyzed by Amino Sulfonic Acid

作　　者：俞善信[1] 方正法[1] 文瑞明[2] 

机构地区：[1]湖南师范大学化学化工学院,湖南长沙410081 [2]湖南城市学院化学与环境工程系,湖南益阳413000

出　　处：《湖南文理学院学报（自然科学版）》2005年第2期22-23,共2页Journal of Hunan University of Arts and Science(Science and Technology)

基　　金：湖南省教育厅科研基金资助项目(01C022)

摘　　要：在氨基磺酸存在下,由正丁醇和对羟基苯甲酸合成了高收率的对羟基苯甲酸正丁酯.研究了反应的影响因素和催化剂的重复使用性能.当对羟基苯甲酸、正丁醇和氨基磺酸的物质量比为1:4:0.41,回流分水3h,酯收率达97.9%.表明氨基磺酸是合成对羟基苯甲酸正丁酯的良好催化剂.n-Butyl p-hydroxy benzoate was synthesis in high yield by esterification of n-butyl alcohol with p-hydroxybenzonic acid in the presence of amino sulfonic acid. The influent factors of reaction and reuseability of the catalyst were investigated. The yield of the ester could reached 97.9% under amount of substance ratio of p-hydroxy benzoic acid、 n-butyl alcohol and amino sulfonic acid were 1:4:0.41, refluxing and water segregation for 3h. It shows that the amino sulfonic acid is a good catalyst for synthesis of n-butyl p-hydroxy benzoate.

关 键 词：对羟基苯甲酸正丁酯 合成 氨基磺酸 催化 

分 类 号：TQ423.96[化学工程]