摘要
通过以水-醇体系为反应介质,硼氢化钾为还原剂还原二苯甲酮,合成二苯甲醇的研究,确定以PEG400作为醇,添加量为二苯甲酮物质的量的0.5倍,反应时间0.5 h时为最佳反应条件,收率为97.2%。该反应时间短,在室温下进行,后处理简单,母液可以回收套用,且收率高,对环境友好。
According to study of synthesis diphenylmethanol by reducing benzophenone with KBH4 in the participation of H2O - alcohol system, such as PEG - H2O, β - CD - H2 O, glucose - H2O, glycerin - H20 ,confirmed the optimal condition as follow, using PEC,400 as alcohol in aqueous media ,the optimal ration of benzophenone to PEC400 was 2 ： 1, the reaction time was 0.5 h, the yield of product was higher than 97.2%. The react was carried out in room temperature, work - up procedure was very simple, and friendliness to environment.
出处
《山东化工》
CAS
2008年第5期15-16,25,共3页
Shandong Chemical Industry
关键词
二苯甲醇
聚乙二醇
合成
还原
水相
diphenylmethanol
PEG
synthesis
reduce
aqueous media
