摘要
研究了改用新的铁试剂(CAT)作催化剂后,苯甲酰氯和苯能于低压、160℃以下发生Friedel-Crafts酰化反应合成二苯甲酮的工艺。反应最佳条件:n(苯甲酰氯)∶n(苯)=1∶3,m(铁试剂)∶m(苯甲酰氯)=0.0285∶1,在0.4MPa压力下反应14小时,收率达90%,纯度为99.8%(GC分析)。
The technique of synthesis of benzophenone by Friedel-Crafts acylation of benzoyl chloride with benzene was studied in the presence of new iron regent catalyst （CAT） under low-pressure, lower than 160℃. The best of process is： n （benzoyl chloride）：n （benzene）=1：3, m （iron regent）：m（benzoyl chloride）=0.0285：1, 0.4MPa, 14h. Benzophenone was given with yield of 90%, and purity of 99.8%（by GC）.
