申请人:Central Glass Company, Limited
公开号:EP0953557A1
公开(公告)日:1999-11-03
The invention relates to a method for producing a bis(trifluoromethyl)benzene. This method includes the steps of (a) chlorinating a compound represented by the general formula (1) by chlorine, thereby to produce a trichloromethyltrifluoromethylbenzene; and (b) fluorinating the trichloromethyltrifluoromethylbenzene by hydrogen fluoride, thereby to produce the bis(trifluoromethyl)benzene,
where m is 1, 2 or 3. It is not necessary in the invention to handle solid in any reaction step. Therefore, the invention is very useful in the production of a bis(trifluoromethyl)benzene in an industrial scale.
本发明涉及一种生产双(三氟甲基)苯的方法。该方法包括以下步骤:(a)用氯对通式(1)代表的化合物进行氯化,从而制得三氯甲基三氟甲基苯;(b)用氟化氢对三氯甲基三氟甲基苯进行氟化,从而制得双(三氟甲基)苯、
其中 m 为 1、2 或 3。在本发明中,任何反应步骤都不需要处理固体。因此,本发明对于工业化生产双(三氟甲基)苯非常有用。