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    31.
    发明专利
    未知

    公开(公告)号：DE10218618A1

    公开(公告)日：2003-11-06

    申请号：DE10218618

    申请日：2002-04-25

    Applicant: BASF AG

    Inventor： DUNG BERNHARD ,  MUELLER FELIX ,  BOEHM ARNO ,  HELFER WILLI ,  WEYRAUCH VOLKER ,  HENNING GEORG

    IPC: C07D221/14 ,  C07D487/06 ,  C09B5/62 ,  C09B57/08 ,  C07D471/06

    Abstract: 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.

    33.
    发明专利
    未知

    公开(公告)号：DE59601770D1

    公开(公告)日：1999-06-02

    申请号：DE59601770

    申请日：1996-01-12

    Applicant: BASF AG ,  MAX PLANCK GESELLSCHAFT

    Inventor： MUELLEN KLAUS ,  QUANTE HERIBERT ,  BOEHM ARNO

    IPC: C07D221/18 ,  C07D471/06 ,  C09B5/62 ,  C09B57/08

    Abstract: Quaterrylenetetracarboxylic diimides I where R is hydrogen; C1-C30-alkyl whose carbon chain may be interrupted by one or more of -O-, -S-, -NR1-, -CO- and/or -SO2- and which may be monosubstituted or polysubstituted by cyano, C1-C6-alkoxy or a 5-, 6- or 7-membered heterocyclic radical which is attached via a nitrogen atom and which may contain further heteroatoms and may be aromatic, where R1 is hydrogen or C1-C6-alkyl; C5-C8-cycloalkyl whose carbon skeleton may be interrupted by one or more of -O-, -S- and/or -NR1-; aryl or hetaryl, which may each be monosubstituted or poly-substituted by C1-C18-alkyl, C1-C6-alkoxy, cyano, -CONHR2, -NHCOR2 and/or aryl- or hetaryl-azo, which may each be substituted by C1-C10-alkyl, C1-C6-alkoxy or cyano, where R2 is hydrogen; C1-C18-alkyl; aryl or hetaryl, which may each be substituted by C1-C6-alkyl, C1-C6-alkoxy, halogen or cyano; X is halogen; C1-C18-alkyl; aryloxy, arylthio, hetaryloxy or hetarylthio, which may each be substituted by C1-C4-alkyl or C1-C4-alkoxy; n is from 2 to 12, their preparation and use as pigments or fluorescent dyes and also substituted 9-haloperylene-3,4-dicarbimides III as intermediates therefor.

    34.
    发明专利
    未知

    公开(公告)号：DE102004041604A1

    公开(公告)日：2006-03-02

    申请号：DE102004041604

    申请日：2004-08-26

    Applicant: BASF AG

    Inventor： KOENEMANN MARTIN ,  BOEHM ARNO ,  BIDLINGMAIER HERMANN ,  RIEGER REINHOLD ,  BLASCHKA PETER ,  REICHELT HELMUT ,  KRIEGER MATTHIAS

    IPC: C07D471/06 ,  C09B5/62

    Abstract: A process for preparing quaterrylene-3,4:13,14-tetracarboximides of the general formula I in which R, R′ are each independently hydrogen or optionally substituted C1-C30-alkyl, C5-C8-cycloalkyl or aryl or hetaryl; which comprises reacting a perylene-3,4-dicarboximide of the general formula IIa in the presence of a base-stable, high-boiling, organic solvent and of an alkali metal base or alkaline earth metal base, with a perylene-3,4-dicarboximide of the general formula IIb in which X is hydrogen, bromine or chlorine.

    40.
    发明专利
    未知

    公开(公告)号：DE10226181A1

    公开(公告)日：2003-12-24

    申请号：DE10226181

    申请日：2002-06-12

    Applicant: BASF AG

    Inventor： ERK PETER ,  BURG SIMONE ,  BOEHM ARNO ,  BLASCHKA PETER ,  ARMS HARALD ,  HELFER WILLI

    IPC: C09B67/10 ,  C09B67/48 ,  C09B3/14

    Abstract: A process for converting perylene-3,4:9,10-tetracarboximides of the general formula I in which R1 and R2 are each unbranched, branched or cyclic C1-C8-alkyl to a form suitable for use as fluorescent dyes, which comprises a) dissolving or suspending the perylene-3,4:9,10-tetracarboximides whose molecules have a molecular volume of ≦̸230 Å3 in an organic or inorganic solvent at from 0 to 250° C., b1) cooling the solution obtained in step a) to or below the crystallization temperature and, in the case of an organic solvent, if desired at the same time removing excess solvent until the first crystals form, or, in the case of an inorganic solvent, adding water or dilute aqueous solutions of the solvent until the first crystals form, and maintaining the solution at this temperature for further crystallization or b2) cooling the suspension obtained in step a) to or below the crystallization temperature when the temperature in step a) was above the crystallization temperature, and maintaining the suspension at this temperature for further crystallization, c) isolating the solvate crystals formed in step b) and d) then removing the solvent from the solvate crystals, and also novel crystalline forms of perylene-3,4:9,10-tetracarboxylic diimides.

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