42.
    发明专利
    未知

    公开(公告)号:DE4110458A1

    公开(公告)日:1992-10-01

    申请号:DE4110458

    申请日:1991-03-30

    Applicant: BASF AG

    Abstract: The invention concerns a method for the preparation of halogenated indigo by reacting indigo with bromine and/or chlorine, optionally using iodine as a catalyst, characterized in that thionyl chloride is used as the reaction medium.

    48.
    发明专利
    未知

    公开(公告)号:DE3409243A1

    公开(公告)日:1985-09-19

    申请号:DE3409243

    申请日:1984-03-14

    Applicant: BASF AG

    Abstract: A compound of the formula: where R is hydrogen, C1-C4-alkyl, phenyl, chlorophenyl, methylphenyl, methoxyphenyl or nitrophenyl; R1 is allyl, C1-C8-alkyl, C1-C8-alkyl substituted by C1-C8-alkoxy, phenoxy, phenyl or C1-C8-alkanoyloxy, cyclopentyl, cyclohexyl, methylcyclohexyl, norbornyl, phenyl or phenyl substituted by chlorine, methyl or alkoxy; R2 is C1-C10-alkanoyl, C1-C10-alkanoyl substituted by alkoxy or phenoxy, cyclohexanoyl, benzoyl, benzoyl substituted by chlorine, methyl or methoxy, C1-C8-alkoxycarbonyl, aminocarbonyl, phenylaminocarbonyl, CH3NHCO, C2H5NHCO, C3H7NHCO, C4H9NHCO, (CH3)2NCO, CH3SO2, C6H5SO2 or p-CH3-C6H4-SO2; or R1 and R2, together with the nitrogen atom, form a ring system, and K is a radical of a coupling component. The isothiazolylylazo compound of the invention is useful for the dyeing of the polyesters, nylon, and cellulose esters.

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