摘要
以丁二酸和无水乙醇为原料,硫酸氢钠为催化剂合成丁二酸二乙酯,考察了影响收率的各种因素,确定了最佳反应条件为:丁二酸用量0.1mol时,无水乙醇与戊二酸的物质的量比为6.0,3.0g催化剂,25mL环己烷作带水剂,反应时间2.0h,收率达85.09%,结果表明,硫酸氢钠是合成丁二酸二乙酯的优良催化剂。
Diethyl succinate was synthesized from succinic acid and ethanol with sodium bisulfate as catalyst. The effects of factors on esterifieation ratio were studied. The best reaction conditions are as follows：based on 0.1 tool succinic acid, the molar ratio of ethanol to succinic acid is 6.0,mass of catalyst is 3.0 g, the taking w mL, and the reaction time is 2.0 h. The yield of esterification is 85.09%. The experimental results bisulfate is an excellent catalyst for synthesis of diethyl succinate.
出处
《天津化工》
CAS
2010年第3期28-29,共2页
Tianjin Chemical Industry
关键词
丁二酸二乙酯
丁二酸
硫酸氢钠
酯化
diethyl succinate
succinic acid
sodium bisulfate
esterification ater reagent is 25 show that sodium
