超声条件下合成对羟基苯甲酸乙酯  

Synthesis of Ethyl p-Hydroxyl Benzoate under Ultrasonic Radiation

作　　者：罗冬冬[1] 周小旭[1] 

机构地区：[1]中南民族大学化学与材料科学学院催化材料科学湖北省暨国家民委-教育部共建重点实验室,武汉430074

出　　处：《中南民族大学学报（自然科学版）》2007年第3期8-9,共2页Journal of South-Central University for Nationalities：Natural Science Edition

摘　　要：利用超声波可改进化学反应条件及缩短反应时间的手段,在超声波辐射下,以对羟基苯甲酸和乙醇为原料,以对甲苯磺酸为催化剂,合成对羟基苯甲酸乙酯.同时对影响产率的诸因素进行了考察,经正交实验确定最佳条件:超声功率350W,超声温度70～80℃,超声时间70min,乙醇与对羟基苯甲酸的摩尔比为7:1,催化剂用量8%,产率可达85.51%.Ethyl p-hydroxyl benzoate was synthesized by p-Hydroxyl Benzoate and alcohol with toluene-p-sulfonic acid as catalyst under ultrasonic radiation to improve reaction condition and to shorten reaction time.Factors influencing yield were discussed.The optimum reaction conditions obtained by orthogonal experiment design were as follows:ultrasonic radiation power,350 W;reaction temperature,70～80℃;reaction time,70 min;mole ratio of alcohol to p-hydroxybenzoic acid,7:1 and catalyst amount,8%.The yield obtained und...

关 键 词：对羟基苯甲酸乙酯 对甲苯磺酸 超声波 对羟基苯甲酸 

分 类 号：O625.523[理学—有机化学]