22.
    发明专利
    未知

    公开(公告)号:DE59102214D1

    公开(公告)日:1994-08-25

    申请号:DE59102214

    申请日:1991-03-23

    Applicant: BASF AG

    Abstract: Process for the preparation of 2-amino-5-formyl-4-halothiazoles by reaction first of thiourea with chloro- or bromoacetic acid in the presence of an N,N-disubstituted formamide and treatment of the reaction mixture with a phosphoryl halide and then with water in the presence of a base.

    24.
    发明专利
    未知

    公开(公告)号:DE4010514A1

    公开(公告)日:1991-10-10

    申请号:DE4010514

    申请日:1990-04-02

    Applicant: BASF AG

    Abstract: Process for the preparation of 2-amino-5-formyl-4-halothiazoles by reaction first of thiourea with chloro- or bromoacetic acid in the presence of an N,N-disubstituted formamide and treatment of the reaction mixture with a phosphoryl halide and then with water in the presence of a base.

    26.
    发明专利
    未知

    公开(公告)号:DE3902216A1

    公开(公告)日:1990-08-02

    申请号:DE3902216

    申请日:1989-01-26

    Applicant: BASF AG

    Abstract: Pyrrole derivatives of the formula or the tautomers thereof, where R1 is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, phenyl, hetaryl or amino, it being possible for these radicals to be substituted, R2 is hydrogen, alkyl, benzyl, alkenyl, cycloalkyl or phenyl R3 is hydrogen, alkyl, benzyl or alkenyl, or R2 and R3 together are where T1, T2 and T3 have the meanings mentioned in the description, or R2 and R3 together with the nitrogen connecting them are a heterocyclic radical, R4 is cyano, or carbamoyl or thiocarbamoyl, each of which can be substituted, or -C(NH2)=N-OH, R5 is halogen, hydroxyl, alkanoyloxy or benzoyloxy and R6 is hydrogen, alkyl, phenyl, cyano, halogen, nitro, hydroxysulfonyl, alkanoyl, benzoyl or where T4 is alkyl or phenyl and T5 is the radical of an active methylene compound, hydroxyimino or the radical of a primary amine, with the proviso that R1, R2 and R3 are not all hydrogen, a process for the preparation of pyrrole derivatives (with R5=hydroxyl) and the use of the novel products as diazo or coupling components are described.

    27.
    发明专利
    未知

    公开(公告)号:DE59500341D1

    公开(公告)日:1997-08-07

    申请号:DE59500341

    申请日:1995-04-27

    Applicant: BASF AG

    Abstract: Bis(5-azo-6-hydroxy-4-methyl-3-hydroxysulphonyl-pyrid-2-on- 1-yl) dyes (I) of formula (A), in the form of free acids or their salts, are claimed. In A, A and Y are each -SO3H; Z is D-N=N-; D is the residue of a diazo component; and X is a 2-8 C alkylene opt. with an ether O atom in the chain. Also claimed are bis(6-hydroxy-4-methy-3-hydroxysulphonyl-pyrid-2-on-1-yl) cpds. (II) of formula (A), in which Y is -SO3H and Z is H, in the form of the free acids or salts, and the prepn. of (II).

    29.
    发明专利
    未知

    公开(公告)号:DE59303827D1

    公开(公告)日:1996-10-24

    申请号:DE59303827

    申请日:1993-06-24

    Applicant: BASF AG

    Abstract: A process for preparing metal aminoformazans by alkaline hydrolysis of the corresponding acylated amino derivates in aqueous medium, is described, the hydrolysis being carried out at from 120 DEG to 170 DEG C. and from 3 to 5 bar in the presence of from 1.5 to 3 mol of an alkali metal hyroxide, based on 1 mol of acylated aminoformazan.

    30.
    发明专利
    未知

    公开(公告)号:DE59106925D1

    公开(公告)日:1996-01-04

    申请号:DE59106925

    申请日:1991-02-06

    Applicant: BASF AG

    Abstract: Process for transfer of azo dyestuffs from a support to a plastic-coated paper by diffusion with the aid of an energy source, in which a support is used on which are present one or more azo dyestuffs of the formula in which X denotes nitrogen or the radical C-CN Z denotes oxygen or the radical -CH(R )-, in which R represents hydrogen or C1-C4-alkyl, R represents hydrogen, substituted or unsubstituted alkyl or substituted or unsubstituted phenyl, R and R each denote hydrogen or C1-C4-alkyl, R denotes hydrogen, C1-C10-alkyl, C1-C10-alkoxy or acylamino, R denotes hydrogen, chlorine, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkylthio or substituted or unsubstituted phenyl and R denotes cyano or the radical -CO-OR , -CO-NHR or -CO-N(R )2, in which R has the abovementioned meaning.

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