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作 者:宋国强[1] 罗九艳 李贝贝[1] 唐龙[1] 王羚竹[1]
机构地区:[1]常州大学制药与生命科学学院,江苏常州213164
出 处:《应用化工》2014年第7期1211-1213,共3页Applied Chemical Industry
基 金:江苏省科技成果转化专项资金项目(BA2012062)
摘 要:以二乙胺、丙烯酸甲酯为原料,经迈克尔加成,生成3-甲氧基-二乙基丙烯酸甲酯(产物Ⅰ),再与吗啉酰胺化生成3-吗啉基-二乙基丙酰胺(产物Ⅱ),最后经催化裂解得到丙烯酰吗啉。研究了投料比、反应温度、反应时间等因素对中间产物Ⅱ反应影响。结果表明,最佳反应条件为:产物Ⅰ、吗啉与甲醇钠摩尔投料比1:1.2:0.2,反应温度80~90℃,反应时间5~6 h,产物Ⅱ纯度可达82%,收率可达88%。产物Ⅱ再经催化裂解得目标产品丙烯酰吗啉,浓度约50%,收率约35%。3-Methoxy-ethyl ProPionate(Ⅰ)was synthesized by Michael addition with diethylamine and methyl acrylate. Therefore,comPoundⅠwas converted to 3-morPholin-diethyl ProPionamide(Ⅱ)by ami-dation with morPholine. Finally,acryloyl morPholinein was obtained by catalytic cracking of intermediatesⅡ. The effect of the ratio of raw material,reaction temPerature and time on intermediates Ⅱwere investi-gated. Result showed that the oPtimum reaction condition were as follows:the Purity of the intermediatesⅡ was uP to 82% and the yield was uP to 88%,when the molar ratio of 3-methoxy-ethyl ProPionate to morPholine and sodium methylate was 1:1 . 2:0 . 2 ,and the best reaction temPerature was 80~90 ℃,the best reaction time was 5~6 h. The Purity of acryloyl morPholine as the target Product was uP to 50% and the yield was uP to 35%.
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