应用化工
應用化工
응용화공
APPLIED CHEMICAL INDUSTRY
2014年
7期
1211-1213
,共3页
宋国强%罗九艳%李贝贝%唐龙%王羚竹
宋國彊%囉九豔%李貝貝%唐龍%王羚竹
송국강%라구염%리패패%당룡%왕령죽
丙烯酰吗啉%吗啉%二乙胺%丙烯酸甲酯%热解法
丙烯酰嗎啉%嗎啉%二乙胺%丙烯痠甲酯%熱解法
병희선마람%마람%이을알%병희산갑지%열해법
acryloyl morPholine%morPholine%diethylamine%methyl acrylate%Pyrolysis
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%。
以二乙胺、丙烯痠甲酯為原料,經邁剋爾加成,生成3-甲氧基-二乙基丙烯痠甲酯(產物Ⅰ),再與嗎啉酰胺化生成3-嗎啉基-二乙基丙酰胺(產物Ⅱ),最後經催化裂解得到丙烯酰嗎啉。研究瞭投料比、反應溫度、反應時間等因素對中間產物Ⅱ反應影響。結果錶明,最佳反應條件為:產物Ⅰ、嗎啉與甲醇鈉摩爾投料比1:1.2:0.2,反應溫度80~90℃,反應時間5~6 h,產物Ⅱ純度可達82%,收率可達88%。產物Ⅱ再經催化裂解得目標產品丙烯酰嗎啉,濃度約50%,收率約35%。
이이을알、병희산갑지위원료,경매극이가성,생성3-갑양기-이을기병희산갑지(산물Ⅰ),재여마람선알화생성3-마람기-이을기병선알(산물Ⅱ),최후경최화렬해득도병희선마람。연구료투료비、반응온도、반응시간등인소대중간산물Ⅱ반응영향。결과표명,최가반응조건위:산물Ⅰ、마람여갑순납마이투료비1:1.2:0.2,반응온도80~90℃,반응시간5~6 h,산물Ⅱ순도가체82%,수솔가체88%。산물Ⅱ재경최화렬해득목표산품병희선마람,농도약50%,수솔약35%。
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%.