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OwnerHans U. Schutz, Ulrich Schlesinger +1inventors
InventorsHans U. Schutz, Ulrich Schlesinger, Gerhard Back
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The invention relates to chromium complexes of the formula ##STR1## in which A is the radical of a dicyclically metallizable azo or azomethine dye, B is the radical of a monoanionic bidentate complexible organic compound which is bonded to the chromium atom via oxygen atoms, L is a colorless monofunctional ligand, X is halogen-substituted C.sub.1-4 -alkanoyl, C.sub.1-4 -alkenoyl, halogen-substituted C.sub.1-4 -alkenoyl, monohalogenopyrimidinyl, dihalogenopyrimidinyl or trihalogenopyrimidinyl which is bonded to A and/or B via ##STR2## and R.sub.5 is hydrogen or C.sub.1-4 -alkyl, Ka is a cation, m is 1, 2 or 3, n is 1 or 2 and the SO.sub.3.sup..crclbar. Ka group is bonded to A and/or B. These chromium complexes are suitable for dyeing nitrogen-containing or hydroxy-containing materials and they produce level dyeings having good all-round fastness properties.
A chromium complex of the formula ##STR107## in which B is acetylacetone, benzoylacetone, ethyl acetoacetate, 2-hydroxyacetophenone, 2-hydroxybenzophenone, 1-phenyl-3-methyl-4-benzoylpyrazol-5-one, 1-phenyl-3-methyl-4-acetylpyrazol-5-one or salicylaldehyde, L is water, D is benzene which contains the oxygen atom in the o-position relative to the azo bridge and is unsubstituted or substituted by sulfo, nitro, chlorine and --NH-X or is naphthalene which contains the oxygen atom in the o-position relative to the azo bridge and is unsubstituted or substituted by sulfo, nitro and --NH-X, K is naphthalene which, in addition to --NH-X is substituted by 1 or 2 sulfo groups, the radical --NH-X being bonded to th enaphthalene nucleus either directly or via phenylamino, or is 1-phenyl-3-methylpyrazol-5-one where the group --NH-X is bonded to the phenyl ring or is 1-(2',2"-disulfortilbene)-3-methylpyrazol-5-one where the group --NH-X is bonded in the 4"-position, X is .alpha.,.beta.-dibromopropionyl, .alpha.-bromoacryloyl or 2,6-difluoro-5-chloropyrimidinyl, and Ka is an alkali metal cation.
A chromium complex according to claim 1 of the formula ##STR108## in which B, D, L and Ka are as defined in claim 27, the azo group is bonded to the naphthalene nucleus in the o-position relative to the --O-- radical, X is .alpha.,.beta.-dibromopropionyl or .alpha.-bromoacryloyl, and the chromium complex contains no more than 1 or 2 sulfo groups.
Dependencies are inferred from the claim text.