氯化亚砜催化合成1,3,5-三(3,5-二溴苯基)苯

Synthesis of 1,3,5-tri(3,5-dibromophenyl) Benzene Catalyzed by Thionyl Chloride

以3,5-二溴苯乙酮为反应原料,在氯化亚砜-无水乙醇催化下合成了1,3,5-(3,5-二溴苯基)苯.对反应条件进行了讨论,发现在回流状态下反应4 h,n(3,5-二溴苯乙酮)/n(氯化亚砜)/n(无水乙醇)=1/15/10时产率最高,达到了64.3%.

Using thionyl chloride-anhydrous ethanol as catalyst,3,5 – dibromoacetophenone as material,1,3,5 – tri（3,5-dibromophenyl） benzene was synthesized. The reaction conditions were discussed,and the best yield was 64. 3%,while the reflux time was 4 h and the molar ratio of n（3,5 – dibromoacetophenone） / n（thionyl chloride） / n（ethanol） was 1 /15 /10.