相转移催化法合成十二烷基缩水甘油醚

Synthesis of dodecyl glycidyl ether by phase transfer catalysis

摘要:

以十二醇和二氯丙醇为原料，利用相转移催化剂直接合成了十二烷基缩水甘油醚。研究了催化剂种类、原料摩尔比、反应时间和反应温度对十二烷基缩水甘油醚收率的影响。结果表明：在以四丁基溴化铵为催化剂，甲苯为溶剂，n(十二醇)：n(二氯丙醇)=1：1.60，反应温度为50 ℃，反应时间4 h，十二烷基缩水甘油醚收率可达73.2%。用IR、1HNMR对产物结构进行了表征，采用测定产品环氧值的方法来计算十二烷基缩水甘油醚的收率。

Abstract:

In the presence of phase-transfer catalyst, dodecyl glycidyl ether was synthesized from lauryl alcohol and dichloropropanol. The catalyst type, mole ratios, time and reaction temperature were investigated to optimize the reaction conditions. The optimum reaction condition were obtained as follows: n(lauryl alcohol ):n( dichloropropanol )=1:1.60, at 50 ℃ for 4 h and tetrabutyl ammonium bromide as phase tranfer catalysis, the yield of dodecyl glycidyl ether was 73.2%. The structure of product was characterized by IR and NMR. The yield of dodecyl glycidyl ether was calculated by measure its epoxy value.