相转移催化法一步合成丙烯酸缩水甘油酯

Synthesis of glycidyl acrylate by one-step and phase-transfer catalysis

采用相转移催化法合成了丙烯酸缩水甘油酯,研究了反应物摩尔比、反应时间、反应温度及碱的用量和浓度对产物收率的影响.结果表明,在40％的氢氧化钾乙醇溶液中,以十六烷基三甲基氯化铵为相转移催化剂,环氧氯丙烷与丙烯酸钠摩尔比为3.0∶1,反应温度80～90℃,反应时间为2.5h,产率可达88.0％.

Glycidyl acrylate is synthesized from acrylic acid and epichlorohydrin by phase-transfer catalysis. Effects of ratio, reaction ;time, temperature, quantity and concentration of base on yield of product were investigated. The results showed that hexadecyltrimethylammonium chloride was used as the phase transfer catalyst in 40% KOH ethanol solution, the molar ratio of epichlorohydrin to acrylic acid was 3.0： 1 at 80 - 90 ℃ for reaction time of 2.5 h,the maximum yield of GA up to 88.0%.