【摘要】 用三氯甲苯代替苯甲酸，改进专利原来工艺，合成了２，４－二羟基二苯甲酮，选择出适合于这个反应体系的溶剂组成和操作条件，并且在烷基化反应中，用廉价的质子溶剂代替了酮类溶剂．更多还原

【Abstract】 Dihydroxybenzophenone (1) was prepared in 95. 5% yield by treating resorcinol with benzotrichloride at 50℃ in 1:2 ethanol-water mixture. 2-Hydroxy-4 -(n-octyloxy)benzophenone was prepared in 85.6% yield by the alkylation of (I) with octylbromide in 1:4 water-ethanolsolution in the presence of sodium bicarbonate.更多还原