钛酸四丁酯催化合成甲基丙烯酸二甲氨基乙酯  

Catalytic synthesis of N,N-Dimethylaminoethyl methacrylate with tetrabutyl titanate

作　　者：吴殿义[1] 丁伟[1] 刘永建[1] 王亮[2] 

机构地区：[1]大庆石油学院化学化工学院,黑龙江大庆163318 [2]大庆油田有限责任公司第四采油厂,黑龙江大庆163511

出　　处：《大庆石油学院学报》2003年第2期34-36,共3页Journal of Daqing Petroleum Institute

基　　金：黑龙江省自然科学基金项目 (B0 0 0 8)

摘　　要：以甲基丙烯酸甲酯、二甲氨基乙醇为原料 ,钛酸四丁酯为催化剂 ,对羟基苯甲醚为阻聚剂 ,采用酯交换法合成了基丙烯酸二甲氨基乙酯 .考察了原料配比、催化剂用量、阻聚剂用量、反应温度、反应时间等工艺条件对产品收率的影响 .结果表明 ,在甲基丙烯酸甲酯与二甲氨基乙醇物质的量比为 4.0 ,催化剂质量为反应液总质量的 1.0 % ,阻聚剂质量为反应液总质量的 0 .40 % ,反应温度即体系回流温度为 110～ 12 0℃ ,反应时间为 8h的条件下 ,产品收率可达 90 %以上 .N,N-Dimethylaminoethyl methacrylate were synthesized by ester exchange using methyl methacrylate and N,N- dimethylethanolamine as feed stock, tetrabutyl titanate as catalyst, p-methoxphenol as inhibitor. The effect of reaction conditions such as the molar ratio of methyl methacrylate to N,N- dimethylethanolamine, the amount of catalyst and inhibitor , reaction temperature and reaction time on reaction result were studied. The optimum conditions are: the molar ratio of methyl methacrylate to N,N- dimethylethanolamine is 4.0, the amount of tetrabutyl titanate 1.0% (the percentage of the total amount of the reaction system), the amount of p-methoxphenol 0.40% (the percentage of the total amount of the reaction system), the reaction temperature 100～120 ℃, reaction time 8 h, under these conditions the yield of N,N-dimethylaminoethyl methacrylate is over 90%.

关 键 词：甲基丙烯酸二甲氨基乙酯 钛酸四丁酯 酯交换 催化剂 合成 

分 类 号：O623.624[理学—有机化学]