一水硫酸氢钠催化合成乙二醇单甲醚乙酸酯  

Synthesis of ethylene glycol monomethyl ether acetate catalyzed by sodium bisulfate monohydrate

作　　者：游沛清[1] 邓中日[1] 文瑞明[1] 俞善信[1] 

机构地区：[1]湖南城市学院科研处,湖南益阳413000

出　　处：《应用化工》2004年第2期18-19,共2页Applied Chemical Industry

基　　金：湖南省科技计划资助项目(03JZY3034);湖南教育厅科研基金资助项目(01C022)

摘　　要：以一水硫酸氢钠为催化剂,由乙二醇单甲醚和冰乙酸合成了乙二醇单甲醚乙酸酯。考察了乙二醇单甲醚和冰乙酸摩尔比及催化剂用量对酯化率的影响。适宜反应条件为:乙二醇单甲醚∶冰乙酸∶一水硫酸氢钠=1∶1.75∶0.036(摩尔比),苯作带水剂,回流分水60min,酯化率达90.0%。产品经元素分析和红外光谱表征。Ethylene glycol monomethyl ether acetate is synthesized from ethylene glycol monomethyl ether and glacial acetic acid in the presence of sodium bisulfate monohydrate.The effect of molar ratio of ethylene glycol monomethyl ether and glacial acetic acid and catalyst dosage on esterification are discussed. The yield of the ester could reach 90.0% under the molar ratio of ethylene glycol monomethyl ether to glacial acetic acid and sodium bisulfate monohydrate were 1∶1.75∶0.036, benzene as water-carrying agent, refluxing and seprating water for 60 min. The ester was characterized by elementary analysis and IR spectrum.

关 键 词：乙二醇单甲醚乙酸酯 一水硫酸氢钠 酯化 

分 类 号：O623.624[理学—有机化学]