期刊论文

英文

信阳师范学院学报(自然科学版)

1003-0972

2003

16

2

203-205,212

10.3969/j.issn.1003-0972.2003.02.023

Supported by the Natural Science Foundation of Hunan Province ( 0 0 JJYZ0 110 ) and Scientific ResearchFund of Hunan Provincial Education Department( 0 1C0 2 2 )；

本校为第一机构

nbutyl phydroxybenzoate was synthesized by the esterification of nButyl alcohol with phydroxybenzoic acid in the presence of sodium bisulfate monohydrate. The results obtained indicate that sodium bisulfate monohydrate possesses a fairly high catalytic activity for the esterification reaction. The molar ratio of phydroxybenzoic acid/nbutyl alcohol and the effect of the amount of catalyst used and the reaction time on the yield of ester have been studied. The yield of the ester obtained under the typical reaction conditions (phydro...

应用一水硫酸氢钠催化正丁醇与对羟基苯甲酸的酯化反应,合成了对羟基苯甲酸丁酯.研究结果表明,硫酸氢钠具有较高的催化活性.考察了对羟基苯甲酸/正丁醇摩尔比、催化剂用量及反应时间对酯产率的影响.在典型反应条件(对羟基苯甲酸/正丁醇/硫酸氢钠的摩尔比=1∶2∶0.072,回流分水5 h)下,所得对羟基苯甲酸丁酯的产率为92.8%.该催化剂易于回收且可重复使用.