12.
    发明专利
    未知

    公开(公告)号:DE59200949D1

    公开(公告)日:1995-01-26

    申请号:DE59200949

    申请日:1992-05-29

    Applicant: BASF AG

    Abstract: Process for the preparation of I acid urea of the formula in which 7-amino-4-hydroxynaphthalene-2-sulphonic acid (I acid) is subjected to partial reaction with urea in an inert solvent at a temperature from 100 to 140 DEG C and a pressure from atmospheric pressure to 10 bar, unreacted I acid is precipitated in an acidic medium and removed, and, if appropriate, I acid urea is separated from the resulting neutralised solution by adding salt.

    13.
    发明专利
    未知

    公开(公告)号:DE4238994A1

    公开(公告)日:1994-05-26

    申请号:DE4238994

    申请日:1992-11-19

    Applicant: BASF AG

    Abstract: The use of anilines of the formula (I) in which R and R are hydrogen, possibly substituted alkyl, alkenyl, possibly substituted phenyl or R and R together with the nitrogen atoms bonding them are a hetercocyclic residue or R is also a possibly substituted hydroxy or possibly substituted amino; R and R are hydrogen, possibily substituted alkyl, alkenyl, cyano, nitro, acyl, acylamino possibly substituted hydroxy, possibly substituted carboxy methyl, possibly substituted amino, possibly substituted mercapto or possibly substituted sulphamoyl or together with R are alkylene or alkenylene or phenyl alkenylene; R is hydrogen, possibly substituted alkyl, alkenyl, possibly substituted hydroxy, possibly substituted amino, possibly substituted carboxyl or possibly substituted sulphamoyl; and R and R are hydrogen possibly substituted alkyl, alkenyl, possibly substituted phenyl, nitro, acylamino, possibly substituted hydroxy, possibly substituted amino, possibly substituted sulphamoyl, alkyl, sulphonyl, alkenyl, sulphonyl or aryl sulphonyl, acyl or possibly substituted carboxyl; provided that at least one of the residues R , R or R is hydrogen, for marking mineral oils, mineral oils marked with the above anilines and a process for detecting the above anilines in mineral oils are disclosed.

    14.
    发明专利
    未知

    公开(公告)号:DE59001835D1

    公开(公告)日:1993-07-29

    申请号:DE59001835

    申请日:1990-04-24

    Applicant: BASF AG

    Abstract: 3-Aminophenylpentane-1,5-diones of the formula I (I) where R1 and R2 are, independently of one another, hydrogen, C1-C8-alkyl, C4-C8-cycloalkyl, cyano-C2-C4-alkyl, hydroxy-C2-C4-alkyl, chloro-C2-C4-alkyl, phenyl-C1-C2-alkyl which can be substituted by chlorine, or phenyl which can be substituted by clorine or methyl, or R1 and R2 form, together with the nitrogen to which they are bonded, a heterocyclic radical which can contain further hetero atoms, R3 is hydrogen, fluorine, chlorine, C1-C2-alkyl or C2-C5-alkoxy or, if R3 is ortho to -NRR2, R3 and R2 together form C2-C4-alkylene, which can be substituted, or 1,2-phenylene and A is naphthyl or a radical of the formula II (II) where X is hydrogen, fluorine, chlorine, bromine, C1-C5-alkyl, hydroxyl, C1-C5-alkoxy, phenoxy, phenyl-C1-C2-alkoxy, cyano or phenyl and n is 1 or 2, with the proviso that R1 and R2 are not both methyl when A is phenyl, are described.

    15.
    发明专利
    未知

    公开(公告)号:DE3866520D1

    公开(公告)日:1992-01-09

    申请号:DE3866520

    申请日:1988-11-14

    Applicant: BASF AG

    Abstract: 62 New polyethylene-imine-contg. azo-dyestuffs are claimed ((D-N=N-K-)yX-)mP (I) (P=polyethylene-imine) where D is an aromatic or heteroaromatic gp. with no sulphonic acid gp. the diazo-component, and K the coupling component, a naphthol, aminopyridine or pyrazolone contg. at most one sulphonic acid gp., or a deriv. of aceto-acetic acid; y=1 or 2; X, if y=1 can be a covalent bond or a bridging gp., or, if y=2, a bridging gp. e.g. X=(II) where q=0-4; (III) where R7=H, CH3; (IV) where R8= mono- or dialloylamino, alkoxy 1-4C halogen, or a further diazo component.

    18.
    发明专利
    未知

    公开(公告)号:DE4120366A1

    公开(公告)日:1992-12-24

    申请号:DE4120366

    申请日:1991-06-20

    Applicant: BASF AG

    Abstract: Process for the preparation of I acid urea of the formula in which 7-amino-4-hydroxynaphthalene-2-sulphonic acid (I acid) is subjected to partial reaction with urea in an inert solvent at a temperature from 100 to 140 DEG C and a pressure from atmospheric pressure to 10 bar, unreacted I acid is precipitated in an acidic medium and removed, and, if appropriate, I acid urea is separated from the resulting neutralised solution by adding salt.

    19.
    发明专利
    未知

    公开(公告)号:DE3814290A1

    公开(公告)日:1989-11-09

    申请号:DE3814290

    申请日:1988-04-28

    Applicant: BASF AG

    Abstract: Quinoline compounds of the formula I in which R represents hydrogen, alkyl or alkoxy, R represents alkyl, cycloalkyl or phenylalkyl, R represents hydrogen, alkyl, substituted or unsubstituted phenyl and X represents a radical of the formula in which R and R denote hydrogen, substituted alkyl, cycloalkyl, phenyl, phenylalkyl or denotes a 5- or 6-membered saturated heterocyclic ring R denotes hydrogen, alkyl, alkoxy or halogen and R denotes hydrogen, chlorine, alkyl or R and R denote a bridging member, upon reaction with just phenolic condensation products as electron acceptors produce yellow to orange dyeings which have a higher colour strength and in some cases better light fastness than the dyes produced using compounds of the closest prior art.

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