摘要
以氨基磺酸为催化剂，由乙酰乙酸乙酯和１，２－丙二醇合成了苹果酯－Ｂ。考察了反应时间、原料配比和催化剂用量等因素对反应的影响，实验结果表明：在反应时间为２５ｈ，原料的摩尔配比为乙酰乙酸乙酯：１，２－丙二醇＝１∶１２，催化剂用量为０５ｇ的条件下，产品收率为７５％，并且催化剂可重复使用多次。
Fructone-B has been synthesized by the esterification of acetylacetic ether with 1,2-propanediol by using aminosulfuric acid as catalysts. The rate of feed and the amount of catalysts has been studied and discussed. According to the experimental result. when the time is 2 5 hours and the amount of catalysts is 0 5 gram and the rate of acetylacetic ether and 1,2-propanediol is 1∶1 2, the yield rate of product is 75%, therefore the catalyst may be used many times
出处
《桂林工学院学报》
1998年第4期386-388,共3页
Journal of Guilin University of Technology
关键词
氨基磺酸
苹果酸-B
合成
aminosulfuric acid
fructone-B
synthesis
