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    Preparation of perylen-3,4:9,10-tetracarboxylic dianhydride and also of naphtalene-1,8-dicarboximides
    1.
    发明授权
    Preparation of perylen-3,4:9,10-tetracarboxylic dianhydride and also of naphtalene-1,8-dicarboximides 有权
    苝-3,4：9,10-四羧酸二酐以及萘-1,8-二羧酰亚胺的制备

    公开(公告)号：US07807836B2

    公开(公告)日：2010-10-05

    申请号：US11955605

    申请日：2007-12-13

    申请人： Bernhard Dung ,  Felix Mueller ,  Arno Boehm ,  Willi Helfer ,  Volker Weyrauch ,  Georg Henning

    发明人： Bernhard Dung ,  Felix Mueller ,  Arno Boehm ,  Willi Helfer ,  Volker Weyrauch ,  Georg Henning

    IPC分类号： C07D471/16 ,  C07D471/00

    CPC分类号： C09B5/62 ,  C09B57/08

    摘要： A process for preparing perylene-3,4:9,10-tetracarboxylic dianhydride, comprising: dimerizing a naphthalene-1,8-dicarboximide of the formula IIa; reoxidizing the resulting alkali metal salt of the leuco form of the perylene-3,4:9,10-tetracarboxylic diimide of the formula Ia; hydrolyzing the diimide to the tetraalkali metal salt of perylene-3,4:9,10-tetracarboxylic acid in the presence of an inert organic solvent, of an alkali metal base and of water; and subjecting the tetraalkali metal salt of perylene-3,4:9,10-tetracarboxylic acid to the action of an aqueous inorganic acid to convert it into perylene-3,4:9,10-tetracarboxylic dianhydride; wherein R3 is cyclohexyl or phenyl which may each be substituted by up to three C1-C4-alkyl radicals, and the dimerizing is in a substantially homogeneous reaction medium consisting essentially of an apolar aprotic organic solvent and an alkali metal base.

    摘要翻译： 一种制备苝-3,4：9,10-四羧酸二酐的方法，包括：使式IIa的萘-1,8-二甲酰亚胺二聚化; 重新氧化得到的无水形式的式Ia的苝-3,4：9,10-四羧酸二酰亚胺的碱金属盐; 在惰性有机溶剂，碱金属碱和水的存在下将二酰亚胺水解成苝-3,4：9,10-四羧酸的四碱金属盐; 并将苝-3,4：9,10-四羧酸的四碱金属盐作为无机酸水溶液的作用，将其转化成苝-3,4：9,10-四羧酸二酐; 其中R 3是可以被至多三个C 1 -C 4 - 烷基取代的环己基或苯基，二聚在基本上均匀的反应介质中，其基本上由非极性非质子有机溶剂和碱金属碱组成。

    PREPARATION OF PERYLEN-3,4:9,10-TETRACARBOXYLIC DIANHYDRIDE AND ALSO OF NAPHTALENE-1,8-DICARBOXIMIDES
    3.
    发明申请
    PREPARATION OF PERYLEN-3,4:9,10-TETRACARBOXYLIC DIANHYDRIDE AND ALSO OF NAPHTALENE-1,8-DICARBOXIMIDES 有权
    季戊四醇3,4：9,10-四羧酸二乙酰胺的制备以及壬二酮-1,8-二氧杂环己酮的制备

    公开(公告)号：US20080161569A1

    公开(公告)日：2008-07-03

    申请号：US11955605

    申请日：2007-12-13

    申请人： Bernhard DUNG ,  Felix Mueller ,  Arno Bohm ,  Willi Helfer ,  Volker Weyrauch ,  Georg Henning

    发明人： Bernhard DUNG ,  Felix Mueller ,  Arno Bohm ,  Willi Helfer ,  Volker Weyrauch ,  Georg Henning

    IPC分类号： C07D471/00 ,  C07D221/14

    CPC分类号： C09B5/62 ,  C09B57/08

    摘要： A process for preparing perylene-3,4:9,10-tetracarboxylic dianhydride, comprising: dimerizing a naphthalene-1,8-dicarboximide of the formula IIa; reoxidizing the resulting alkali metal salt of the leuco form of the perylene-3,4:9,10-tetracarboxylic diimide of the formula Ia; hydrolyzing the diimide to the tetraalkali metal salt of perylene-3,4:9,10-tetracarboxylic acid in the presence of an inert organic solvent, of an alkali metal base and of water; and subjecting the tetraalkali metal salt of perylene-3,4:9,10-tetracarboxylic acid to the action of an aqueous inorganic acid to convert it into perylene-3,4:9,10-tetracarboxylic dianhydride; wherein R3 is cyclohexyl or phenyl which may each be substituted by up to three C1-C4-alkyl radicals, and the dimerizing is in a substantially homogeneous reaction medium consisting essentially of an apolar aprotic organic solvent and an alkali metal base.

    摘要翻译： 一种制备苝-3,4：9,10-四羧酸二酐的方法，包括：使式IIa的萘-1,8-二甲酰亚胺二聚化; 重新氧化得到的无水形式的式Ia的苝-3,4：9,10-四羧酸二酰亚胺的碱金属盐; 在惰性有机溶剂，碱金属碱和水的存在下将二酰亚胺水解成苝-3,4：9,10-四羧酸的四碱金属盐; 并将苝-3,4：9,10-四羧酸的四碱金属盐作为无机酸水溶液的作用，将其转化成苝-3,4：9,10-四羧酸二酐; 其中R 3是可以被至多三个C 1 -C 4 - 烷基取代的环己基或苯基，二聚是 在基本均匀的反应介质中，基本上由非极性非质子有机溶剂和碱金属碱组成。