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    • 117. 发明授权
    • Method for producing halogen-substituted benzenedimethanol
    • 制备卤素取代苯二甲醇的方法
    • US07678947B2
    • 2010-03-16
    • US11572505
    • 2005-08-02
    • Koji Hagiya
    • Koji Hagiya
    • C07C33/28C07C29/136
    • C07C29/147C07C33/46
    • A method for producing a halogen-substituted benzenedimethanol represented by the formula (2): wherein X1 to X4 are the same or different and independently represent a halogen atom or the like, provided that at least one of X1 to X4 is a halogen atom, by reacting a halogen-substituted terephthalic acid diester represented by the formula (1): wherein R1 and R2 are the same or different and independently represent a C1-C20 alkyl group which may have a substitutent or substituents, and X1 to X4 is the same as defined above, with a borohydride compound in the presence of an alcohol which comprises adding the alcohol into a mixture of the halogen-substituted terephthalic acid diester represented by the formula (1), the borohydride compound and a solvent.
    • 由式(2)表示的卤素取代的苯二甲醇的制备方法:其中X1至X4相同或不同,并且独立地表示卤素原子等,条件是X1至X4中的至少一个为卤素原子, 通过使由式(1)表示的卤素取代的对苯二甲酸二酯:其中R 1和R 2相同或不同并且独立地表示可以具有取代基的C 1 -C 20烷基,并且X 1至X 4相同 在醇的存在下与硼氢化合物反应,该醇包括将醇加入由式(1)表示的卤素取代的对苯二甲酸二酯,硼氢化合物和溶剂的混合物中。