摘要
本文报导了以没食子酸和丙醇为原料合成没食子酸丙酯的多种合成方法,其中最有价值的是以对甲苯磺酸为催化剂和烃类带水的酯化法。该法有操作简单、安全、易纯化等优点,收率高于87%。没食子酸丙酯是通用的食品抗氧化剂,应用试验表明,它能阻延油脂和油基食品的氧化变质。
In this paper,we report some synthetic methods of propyl gallate from gallic acid and propanol.The esterification in which p-toluensulfonie acid is used as catalyst and hydrocarbons as water-carrying agent is the best method.It is evidently much more advanced,simpler,safer and more easily purificatory.The yield is over 87%.Propyl gallate is a common synthetic food antioxidant.The applied test shows that it can delay the oxidation spoilage of oil,fat and oil based foods.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
1992年第2期38-42,共5页
Journal of South China University of Technology(Natural Science Edition)
关键词
食品
抗氧化剂
没食子酸丙酯
propanol
trihydroxybenzoic acid
synthesis
sterificationt
food
antioxidants/propyl gallate
