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    Process for production of 1,4-bis (difluoroalkyl) benzene derivative
    2.
    发明申请
    Process for production of 1,4-bis (difluoroalkyl) benzene derivative 失效
    生产1,4-双（二氟烷基）苯衍生物的方法

    公开(公告)号：US20010002425A1

    公开(公告)日：2001-05-31

    申请号：US09758607

    申请日：2001-01-11

    申请人： Nippon Shokubai Co., Ltd., a Japan Corporation

    发明人： Seiichi Teshima ,  Yoshinobu Asako

    IPC分类号： C07C045/00 ,  C07C045/90

    CPC分类号： C07D339/00 ,  C07C17/093 ,  C07C45/56 ,  C07C45/567 ,  C07C45/59 ,  C07C45/60 ,  C07D321/00 ,  C07D327/02 ,  C07C22/04 ,  C07C47/55

    摘要： A process is provided which allows a 1,4-bis(difluoroalkyl)benzene derivative to be produced inexpensively by a simple procedure without requiring any special facility. This process comprises causing a compound (A) of the following formula (1): 1 wherein X1, X2, X3, and X4 independently stand for an oxygen or sulfur atom, Y1 and Y2 independently stand for a group of the formula: nullCnH2nnull, in which n is 2 or 3, k is an integer in the range of 0 to 4, G stands for a halogen group, an alkyl group, a perfluoroalkyl group, or an alkoxy group, and m is an integer in the range of 0 to 4, to react with a fluorine-containing species, the molar ratio of the fluorine-containing species to compound (A) being in the range of 20-40. The process is carried out in the presence of a bromine-containing compound, which is in an amount of 2 to 3 equivalences to the amount of compound (A), in an organic solvent at null80null C. to 30null C., the final concentration of compound (A) being in the range of 3 to 30% by weight.

    摘要翻译： 提供了一种方法，其允许通过简单的方法廉价地生产1,4-双（二氟烷基）苯衍生物，而不需要任何特殊设备。 该方法包括使下述式（1）的化合物（A）：其中X1，X2，X3和X4独立地代表氧或硫原子，Y1和Y2独立地表示下式的基团-C n H 2n - ，其中n为2或3，k为0至4的整数，G表示卤素基团，烷基，全氟烷基或烷氧基，m为在 0至4，与含氟物质反应时，含氟物质与化合物（A）的摩尔比在20-40范围内。 该方法在-80℃至30℃的有机溶剂中，在化合物（A）的量为2〜3当量的含溴化合物的存在下进行， 化合物（A）的最终浓度在3〜30重量％的范围内。