申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0120966A1
公开(公告)日:1984-10-10
Benzophenone derivatives are obtained by treating 1,1- bis(aryl)-2,2,2-trichloroethanol with alkali. The starting 1,1- bis(aryl)-2,2,2-trichloroethanol is industrially available at low cost. The alkali is preferably a hydroxide or carbonate of an alkali metal, and is used in an amount of 0.2 to 10 mol per mol of 1,1-bis(aryl)-2,2,2-trichloroethanol.
用碱处理 1,1-双(芳基)-2,2,2-三氯乙醇可获得二苯甲酮衍生物。起始的 1,1-双(芳基)-2,2,2-三氯乙醇在工业上可以廉价获得。碱最好是碱金属的氢氧化物或碳酸盐,使用量为每摩尔 1,1-双(芳基)-2,2,2-三氯乙醇 0.2 至 10 摩尔。