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    2.
    发明专利
    未知

    公开(公告)号：DE10208840A1

    公开(公告)日：2003-09-18

    申请号：DE10208840

    申请日：2002-03-01

    Applicant: BASF AG

    Inventor： GUEMBEL HELMUT ,  KNEUPER HEINZ-JOSEF ,  BECKER RAINER ,  BERTLEIN GERHARD ,  DROEGEMUELLER MICHAEL

    IPC: A61K8/00 ,  A61K8/49 ,  A61Q17/04 ,  C07D251/70 ,  B01D9/02

    Abstract: Process for the preparation of the tautomeric form I of 2,4,6-trianilino-p-(carbo-2'-ethylhexyl-1'-oxy)-1,3,5-triazine by crystallization from a tautomer mixture in the presence of one or more solvents chosen from the group consisting of aliphatic alcohols having 2 to 8 carbon atoms, aliphatic carboxylic alkyl esters having a total of 3 to 10 carbon atoms, aromatic carboxylic alkyl esters having a total of 8 to 12 carbon atoms, aliphatic carbonic esters having a total of 3 to 9 carbon atoms, carbonitriles having a total of 2 to 8 carbon atoms, dialkyl ketones having a total of 3 to 6 carbon atoms and aliphatic sulfones having a total of 3 to 6 carbon atoms, where the solvent or the solvent mixture may additionally comprise up to 30% by weight of a hydrocarbon. I is used as light protection agent in cosmetic preparations.

    6.
    发明专利
    未知

    公开(公告)号：DE10332485A1

    公开(公告)日：2005-02-10

    申请号：DE10332485

    申请日：2003-07-17

    Applicant: BASF AG

    Inventor： MAASE MATTHIAS ,  BERTLEIN GERHARD ,  GANZ HOLGER ,  DUST MATTHIAS

    IPC: C07C51/58 ,  C07C63/68 ,  C07C22/06 ,  C07C17/32

    Abstract: A process for preparing mono- or poly-C1-C20-alkyl- and/or -halogen-substituted arylcarbonyl chlorides (I), by, in a first stage, reacting a mono- or poly-C1-C20-alkyl- and/or -halogen-substituted aromatic (II) with CCl4 in the presence of a Friedel-Crafts catalyst to give the corresponding mono- or poly-C1-C20-alkyl- and/or -halogen-substituted trichloromethylated aromatic (III), and, in a second stage, treating the trichloromethylated aromatic (III) with water or a protic acid in the presence of a catalyst to obtain the arylcarbonyl chloride (I). In a particularly preferred embodiment, the trichloromethylated aromatic (III) is not isolated as an intermediate and is used in the second stage dissolved in the solvent of the first stage.

    7.
    发明专利
    未知

    公开(公告)号：BR0307455A

    公开(公告)日：2004-11-09

    申请号：BR0307455

    申请日：2003-02-26

    Applicant: BASF AG

    Inventor： MBEL HELMUT G ,  KNEUPER HEINZ-JOSEF ,  BECKER RAINER ,  BERTLEIN GERHARD ,  LLER MICHAEL DR GEM

    IPC: A61K8/00 ,  A61K8/49 ,  A61Q17/04 ,  C07D251/70 ,  C07D251/54 ,  A61K7/44

    Abstract: Process for the preparation of the tautomeric form I of 2,4,6-trianilino-p-(carbo-2'-ethylhexyl-1'-oxy)-1,3,5-triazine by crystallization from a tautomer mixture in the presence of one or more solvents chosen from the group consisting of aliphatic alcohols having 2 to 8 carbon atoms, aliphatic carboxylic alkyl esters having a total of 3 to 10 carbon atoms, aromatic carboxylic alkyl esters having a total of 8 to 12 carbon atoms, aliphatic carbonic esters having a total of 3 to 9 carbon atoms, carbonitriles having a total of 2 to 8 carbon atoms, dialkyl ketones having a total of 3 to 6 carbon atoms and aliphatic sulfones having a total of 3 to 6 carbon atoms, where the solvent or the solvent mixture may additionally comprise up to 30% by weight of a hydrocarbon. I is used as light protection agent in cosmetic preparations.

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