三苯甲醇制备实验的改进  

An improved experiment of preparation of triphenyl carbinol

作　　者：李公春[1] 孙婷[1] 曹义春[1] 杨风岭[1] 

机构地区：[1]许昌学院化学化工学院,河南许昌461000

出　　处：《实验室科学》2010年第1期93-94,共2页Laboratory Science

摘　　要：以无水乙醚为溶剂,用苯甲酰氯与新制的苯基格氏试剂为原料,在加热搅拌下回流反应1h,然后依次经过饱和氯化铵分解加成产物、蒸馏、水蒸气蒸馏、抽滤、重结晶等步骤合成了三苯甲醇,产率为69.5%。与苯甲酸乙酯法合成三苯甲醇相比较,苯甲酰氯法反应活性高,产品收率较高。The triphenyl carbinol has been prepared under the anhydrous ether solvent condition with benzoyl chloride and the new prepared phenyl grignard reagent as raw materials, refluxing for 1 hour under stirring. The reaction mixture was hydrolyzed with saturated solution of ammonium chloride. The triphenyl Carbinol was prepared after distillation, steam distillation, filtration and recrystallization. The yield could reach 69. 5 %. The experiment shows that the activity of benzoyl chloride is better, and the yield is higher than ethyl benzoate.

关 键 词：三苯甲醇 苯甲酰氯 格氏试剂 苯甲酸乙酯 

分 类 号：O621.3[理学—有机化学] G642.0[理学—化学]