硼酸催化合成L-(+)-酒石酸二卞酯  

Boric Acid Catalytic Synthesis of Dibenzyl L-Tartrate

作　　者：计海峰[1] 王卫东[1] 刘保雷[1] 王国胜[2] 

机构地区：[1]吉林化工学院石油化工学院,吉林吉林132022 [2]沈阳化工大学化学工程学院,辽宁沈阳110142

出　　处：《吉林化工学院学报》2014年第11期3-5,共3页Journal of Jilin Institute of Chemical Technology

摘　　要：以L-(+)-酒石酸和苯甲醇为原料,甲苯为溶剂,硼酸为催化剂的条件下,合成L-(+)-酒石酸二卞酯,分析产物的旋光性,其结构经IR表征.试验得到最佳反应条件为:硼酸用量为0.75 g、反应时间为4 h、甲苯用量40 m L、酸醇摩尔比为1 2.8,产物的比旋光度为+5.325,收率达到83.57%,且硼酸能多次回收利用.With tartaric acid and benzyl alcohol as raw material for synthesis of dibezyl L-tartrate. The specific rotator power is determined with toluene as solvent and boric acid as a catalyst. The structure of the product is confirmed by IR. The optimized conditions are as follows ： the dosage of boric acid is 0.75 g, the reaction time is 4h, the amount of carbon tetrachloride is 40 ml, the molar ratio of acid to alcohol is 1 ： 2.8, specific rotation is ＋5. 325,83.57% of the receiving rate reached and boric acid can be reused many times.

关 键 词：L-(+)-酒石酸二卞酯 硼酸 甲苯 

分 类 号：O623.62[理学—有机化学]