摘要
本文用三氯稀土作为水杨酸和乙酸酐的酯化反应催化剂，成功地合成了乙酰水杨酸，考察了影响反应的因素，探讨并找到了较佳的反应条件：水杨酸与乙酸酐摩尔比1：2．0；三氯化铕作催化剂；反应时间为40min；反应温度85～90℃；产率可达88％以上。
Acetylsalicylic acid was synthesized with salicylic acid and acetic anhydride as reactants, rare earth trichloride as catalyst. The influence of factor was discussed. The appropriate conditions were detenmined to be： molar ratio of salicylic acid and acetic anhydride： 1 ： 2.0, catalyst： EuCl3, reaction time： 40 minutes, reaction temperature： 85 ℃ - 90 ℃, the yield can be over 88 %.
关键词
乙酰水杨酸
三氯稀土
催化
合成
acetylsalicylic acid
rare earth trichloride
catalysis
synthesis
