摘要
以活性炭固载磷钨酸为催化剂 ,甲苯为带水剂 ,实现了丙酸与正丁醇反应合成丙酸正丁酯。最佳合成条件为 :酸醇比为 1∶1.2 ,带水剂用量为 10ml,催化剂用量 1.5g ,反应时间为 2 .5h ,产率可达 99.2 %。重复试验表明 。
In the presence of catalyst of supported heteropolyacid (PW 12 /C), propionic acid reacts with n-butyl alcohol to form butyl-propionate. The optimum conditions are follows: molar ratio of propionic acid to n-butyl alcohol is 1∶1.2, reaction time is 2.5h, weight of catalyst is 1.5g, the amount of water carrier is 10ml, The yield under the optimum conditions was up to 99.2%. The catalyst can be used repeatedly.
出处
《香料香精化妆品》
CAS
2001年第3期7-9,共3页
Flavour Fragrance Cosmetics
