机构地区: 湖南城市学院化学与环境工程系
出 处: 《合成化学》 2004年第2期194-196,共3页
摘 要: 用强酸性阳离子交换树脂催化丁二酸和正丁醇的酯化反应 ,合成了丁二酸二丁酯。研究了影响反应的因素和催化剂的重复使用性能 ,在丁二酸 2 5mmol,正丁醇 2 0 0mmol和催化剂 1 .5g,回流分水 1 2 0min的反应条件下 ,酯化率达 95 .7%。催化剂套用 5次 ,其活性未发生明显变化。 Dibutyl succinate was synthesized catalyzed by a strong acid cation exchange resin from succinic acid and n-butyl alcohol. The influent factors of reaction and the reuse ability of the catalyst were investigated. When 25mmol succinic acid, 200mmol n-butyl alcohol and 1.5g of resin were refluxed and water segregated for 120min, the yield of dibutyl succinate was 95.7 %. The resin was reused for 5 times without any obvious less of catalytic activity.
关 键 词: 丁二酸二丁酯 合成 强酸性阳离子交换树脂 催化剂