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    Fluorinated monomers useful for preparing fluorinated polyquinoline polymers
    7.
    发明授权
    Fluorinated monomers useful for preparing fluorinated polyquinoline polymers 失效
    用于制备氟化聚喹啉聚合物的氟化单体

    公开(公告)号：US5344981A

    公开(公告)日：1994-09-06

    申请号：US98197

    申请日：1993-07-28

    申请人： Neil H. Hendricks

    发明人： Neil H. Hendricks

    IPC分类号： C07C45/00 ,  C07C45/71 ,  C07C49/813 ,  C07C49/84 ,  C08G61/12 ,  C08G73/06 ,  C07C225/22 ,  C07C49/76 ,  C07C49/784

    CPC分类号： C07C45/004 ,  C07C45/71 ,  C07C49/813 ,  C07C49/84 ,  C08G61/12 ,  C08G73/0688

    摘要： A new class of polymers is provided, as well as the monomers used for their preparation. The polymers provided in accordance with practice of the present invention include repeating units comprising one or more quinoline groups, wherein at least a portion of the repeating units includes a hexafluoroisopropylidene (6F) group or a 1-aryl-2,2,2-trifluoroethylidene (3F) group, or both.The hexafluoroisopropylidene group is referred to herein as a "6F" group and has the following structure: ##STR1## The "6F" group includes a tetravalent carbon atom bound to two trifluoromethyl moieties, with its other two bonds forming linkages in the polymer chain.The 1-aryl-2,2,2-trifluoroethylidene group is referred to herein as a "3F" group and has the following structure: ##STR2## wherein Ar' is an aryl group.

    摘要翻译： 提供了一类新的聚合物，以及用于其制备的单体。 根据本发明的实践提供的聚合物包括包含一个或多个喹啉基团的重复单元，其中至少一部分重复单元包括六氟异亚丙基（6F）基团或1-芳基-2,2,2-三氟亚乙基 （3F）组，或两者。 六氟异亚丙基在本文中称为“6F”基团，并具有以下结构：与两个三氟甲基部分结合，其另外两个键在聚合物链中形成键。 1-芳基-2,2,2-三氟亚乙基在本文中称为“3F”基团，并具有以下结构：其中Ar'为芳基。

    Preparation of 2,5-dichlorobenzophenones
    8.
    发明授权
    Preparation of 2,5-dichlorobenzophenones 失效
    2,5-二氯二苯甲酮的制备

    公开(公告)号：US5210313A

    公开(公告)日：1993-05-11

    申请号：US818629

    申请日：1992-01-10

    申请人： Ying Wang ,  Mark S. Trimmer

    发明人： Ying Wang ,  Mark S. Trimmer

    IPC分类号： C07C45/46

    CPC分类号： C07C45/46

    摘要： A method for preparing isomerically pure 2,5-dichlorobenzophenones in good to high yields is provided. The invention comprises Friedel-Crafts aroylation of 1,4-dichlorobenzene using an aroyl halide or aromatic anhydride and at least one Lewis acid, the latter being present in an amount of at least about 1.1 mole per mole of aroyl halide or aromatic anhydride, preferably about 1.5 moles per mole of aroyl halide or aromatic anhydride and, more preferably, from about 2 to about 2.5 moles of Lewis acid per mole of aroyl halide or aromatic anhydride. Preferably, the molar ratio of 1,4-dichlorobenzene to aroyl halide ranges from about 1.2:1 to about 8:1.

    摘要翻译： 提供了一种以高产率制备异构纯的2,5-二氯二苯甲酮的方法。 本发明包括使用芳酰卤或芳族酸酐和至少一种路易斯酸的1,4-二氯苯的Friedel-Crafts酰化作用，后者以至少约1.1摩尔/摩尔芳酰卤或芳族酸酐的量存在，优选 每摩尔芳酰卤或芳族酸酐约1.5摩尔，更优选约2至约2.5摩尔路易斯酸/摩尔芳酰卤或芳族酸酐。 优选地，1,4-二氯苯与芳酰卤的摩尔比为约1.2:1至约8:1。