摘要
以杂多酸（盐）为催化剂，３Ａ分子筛为脱水剂，肉桂酸和异戊醇为原料合成肉桂酸异戊酯，考察了醇酸比、催化剂种类、催化剂用量、反应时间对酯产率的影响。结果表明，在肉桂酸用量为０１ｍｏｌ情况下，用ＡｌＰＷ１２Ｏ４０为催化剂，催化剂用量为１００ｇ，醇酸摩尔比为２５∶１，反应时间３ｈ，反应温度１３５～１４０℃是最适宜的反应条件。酯产率超过９６％。
The esterification of cinnamic acid with isoamyl alcohol was studied,using heteropoly acid (salts) as catalysts and 3A molecular sieve as dehydrant.The influences of the reaction time,the mole ratio of isoamyl alcohol to cinnamic acid,the quantity of catalyst on the yield of product were investigated.The optimum synthetic conditions were alcohol/acid mole ratio 2.5∶1,catalyst (AlPW 12 O 40 ) amount 1.00g (amount of cinnamic acid is 0.1 mole),reaction time 3h and temperature 135～140℃.The yield under the optimum conditions was up to 96%.
出处
《精细化工》
EI
CAS
CSCD
北大核心
1998年第6期19-21,共3页
Fine Chemicals
关键词
杂多酸盐
肉桂酸异戊酯
酯化
香料
heteropoly acid (salts),isoamyl cinnamate,esterification
