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    11.
    发明专利
    未知

    公开(公告)号：DE3833195A1

    公开(公告)日：1990-04-05

    申请号：DE3833195

    申请日：1988-09-30

    Applicant: BASF AG

    Inventor： DIX JOHANNES PETER DR ,  HANSEN GUENTER DR ,  KAST HELLMUT DR

    IPC: C09B67/32 ,  C09B67/34 ,  C09B69/06

    Abstract: Concentrated solutions of cationic dyes are prepared by treating the cationic dyes, which contain as the counterions the anions customarily present during their preparation, with alkali metal salts of monocarboxylic acids and with or without complexing agents in an aqueous glycol ether medium, and separating off the organic phase, which contains the dyes in the form of their monocarboxylic acid salts.

    Basic dyes - prepn by catalytic oxidn of corresp cpds using complex catalysts contg heavy metals
    15.
    发明专利
    Basic dyes - prepn by catalytic oxidn of corresp cpds using complex catalysts contg heavy metals 未知

    公开(公告)号：DE2138931A1

    公开(公告)日：1973-02-15

    申请号：DE2138931

    申请日：1971-08-04

    Applicant: BASF AG

    Inventor： KAST HELLMUT DR ,  BAUMANN HANS DR ,  MAYER UDO DR ,  OBERLINNER ANDREAS DR

    IPC: C09B11/02 ,  C09B11/18 ,  C09B11/24 ,  C09B57/00

    Abstract: Basic dyes of formula (I): (where R is H, 1-4C alkyl, 2-3C hydroxyalkyl, cyanethyl, 2-5C carbalkoxyalkyl, methoxyethyl, ethoxyethyl, 4-11C alkanoyloxyalkyl, benzyl, phenylethyl, phenyl opt. substd. by methyl, methoxy or ethoxy, or the gp. R1 is 1-4C alkyl, 2-3C hydroxyalkyl, cyanethyl, methoxyethyl, ethoxyethyl or phenyl, R2 is as R; R3 is as R1; X, Y are each H, Cl, methyl, methoxy or ethoxy; A is phenyl opt. mono- or disubstd. by Cl, OH, methyl, methoxy, ethoxy or sulphonic acid gp. or a gp. of formulae: in which R4 is H, Cl, methyl, methoxy or ethoxy; R5 is H or Cl; X- is an anion) are obtained by dehydrogenating cpds. of formula (II): with benzoquinones substd. by F, Cl, Br or Cn or nitro-substd. phenanthrene -quinones in the presence of O2 and catalysts contg. complex heavy metals (where A' is as A or a gp. of formula.

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