57.
    发明专利
    未知

    公开(公告)号:BR9612248A

    公开(公告)日:1999-07-13

    申请号:BR9612248

    申请日:1996-12-16

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/05632 Sec. 371 Date Jun. 19, 1998 Sec. 102(e) Date Jun. 19, 1998 PCT Filed Dec. 16, 1996 PCT Pub. No. WO97/24405 PCT Pub. Date Jul. 10, 1997Polyazo dyes of the formula where n, Y1, Y2, Y3, Y4, X, R1, R2 and R3 are each as defined in more detail in the description are useful for dyeing natural or synthetic substrates.

    58.
    发明专利
    未知

    公开(公告)号:DE59408185D1

    公开(公告)日:1999-06-02

    申请号:DE59408185

    申请日:1994-08-19

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/02756 Sec. 371 Date Feb. 14, 1996 Sec. 102(e) Date Feb. 14, 1996 PCT Filed Aug. 19, 1994 PCT Pub. No. WO95/06687 PCT Pub. Date Mar. 9, 1995Triazolopyridine azo dyestuffs of the formula where one of the two radicals A and E is nitrogen and the other is a radical of the formula C-R1, where R1 is unsubstituted or substituted C1-C20-alkyl, unsubstituted or substituted phenyl or unsubstituted or substituted mercapto, one of the two radicals R2 and R4 is cyano, carbamoyl, carboxyl or C1-C4-alkoxycarbonyl and the other is a radical of the formula D-N=N-, where D is the radical of a diazo component from the aniline series, R3 is unsubstituted or substituted C1-C4-alkyl or phenyl, and R5 is hydroxyl, mercapto, unsubstituted or substituted amino or the radical of a CH-acidic compound, and their use for dyeing or printing textile materials are described.

    60.
    发明专利
    未知

    公开(公告)号:DE59309386D1

    公开(公告)日:1999-03-25

    申请号:DE59309386

    申请日:1993-03-10

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP93/00538 Sec. 371 Date Jun. 17, 1994 Sec. 102(e) Date Jun. 17, 1994 PCT Filed Mar. 10, 1993 PCT Pub. No. WO94/20469 PCT Pub. Date Sep. 15, 1994.A process for preparing diaminopyridines of the formula where one of the two radicals X1 and X2 is hydrogen, C1-C4-alkyl, halogen or nitro and the other is cyano, R1 is hydrogen, C1-C4-alkyl or phenyl, R2 and R3 are each hydrogen, C1-C4-alkyl or C1-C4-alkoxy, R4 is hydrogen or C1-C4-alkyl, and R5 is optionally substituted C1-C10-alkyl, C3-C4-alkenyl or C5-C7-cycloalkyl, by reacting dichloropyridines of the formula (II) in a first step with an amine of the formula R5-NH2 at from 10 DEG to 80 DEG C. in the presence of a base and of an inert organic diluent and/or water, then removing the diluent and thereafter, with or without prior intermediate isolation of the reaction product, comprises carrying out the second step in a melt at from 90 DEG to 165 DEG C. and at a pH from 3.5 to 6.5 using from 1.3 to 3 mol of aniline IV are used per mole of dichloropyridine II.

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