Abstract: A metal complex suitable as dyes for the dyeing of a wide range of textile and non-textile materials, particularly leather and fur, said metal complex of a compound of the formula ##STR1## in which D and D.sub.1, independently of one another, are each the radical of a diazo component of the benzene or naphthalene series and M is a phenylene radical which may be further substituted.

Abstract: A process for the preparation of azo dyes of the formula ##STR1## in which X is --NH.sub.2 or --OH, A is a benzene or naphthalene radical which can be substituted by nitro, halogen, sulfo, C.sub.2 -C.sub.6 alkanoylamino, C.sub.1 -C.sub.6 -alkoxycarbonylamino, sulfonamido and sulfone groups and B is a benzene radical which is monosubstituted or disubstituted by C.sub.1 -C.sub.6 alkyl, or a naphthalene radical which can be substituted by amino, phenylamino, C.sub.1 -C.sub.6 alkylamino and sulfo, or a 1-phenyl-3-methyl-5-pyrazlone radical which can be substituted by halogen, C.sub.1 -C.sub.6 alkyl and C.sub.1 -C.sub.6 alkoy, these radicals being bound to the azo group in the o-position with respect to the hydroxyl or amino groups, comprises diazotizing in aqueous solution an amine of the formula ##STR2## in the presence of at least one ketone of the formula ##STR3## in which R.sub.1 and R.sub.2, independently of one another, are each C.sub.1 -C.sub.

Abstract: The invention relates to chromium complexes of the formula ##STR1## in which L is H.sub.2 O, NH.sub.3, R.sub.2 --OH, R.sub.2 --NH.sub.2, (R.sub.2).sub.2 NH, (R.sub.2).sub.3 N or pyridine, wherein R.sub.2 is C.sub.1-6 -alkyl unsubstituted or substituted by halogen, C.sub.1-4 -alkoxy or amino, B is 8-hydroxyquinoline, 5-chloro-8-hydroxyquinoline, 5-hydroxyacridine, 6-hydroxy-4,7-phenanthroline, pyridine-2-carboxylic acid, 8-carboxyquinoline, 5,7-dibromo-8-hydroxyquinoline, o-hydroxyaniline, o-hydroxynaphthylamine, proline, glycine, serine, aspartic acid or R.sub.1 --CH(NH.sub.2)--COOH, wherein R.sub.1 is C.sub.1-6 -alkyl unsubstituted or substituted by halogen, C.sub.

Abstract: 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.

Abstract: Dyes suitable for dyeing wool, polyamide and leather in orange, brown or olive-brown shades are disclosed, the dyes having the formula ##STR1## wherein A and D are each independently of the other a benzene or napththalene radical of a diazo component, which component carries the hydroxyl or carboxyl group in the ortho-position to the azo group;B is the radical of a coupling component which carries the group X adjacent to the azo group;X is oxygen or a radical of the formula --R--, in which R is hydrogen or C.sub.1 -C.sub.4 alkyl;Y is a radical of the formula ##STR2## in which formulae R.sup.1 and R.sup.5 are each independently of the other hydrogen or sulfo, R.sup.4 is hydrogen or nitro, R.sup.6 is hydrogen, methyl, methoxy or chlorine and R.sup.2 and R.sup.3 are each independently of the other hydrogen, halogen, nitro or sulfo;Ar.sup.1 is a benzene or napththalene radical which is unsubstituted or substituted by halogen, nitro, sulfo, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.

Abstract: 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 potentially at least bidentate bianionic complexible organic compound which contains no azo or azomethine group, L is a colorless monofunctional ligand, X is a fibre-reactive radical, Ka is a cation, K is 0 or 1, m is 1, 2 or 3, n is 1 or 2, and the X radical and the SO.sub.3.sup..crclbar. Ka group are each bonded to the radicals A and B, to a process for preparing the chromium complexes of the formula (1), and to a combined preparation and dyeing process.

Abstract: Condensates of an azo compound of the formula ##STR1## wherein n is 1 or 2, with the stilbene compound of the formula ##STR2## in the molar ratio of 1:1 to 2:1, dye leather in a yellowish-brown shade, which penetrate deeply into the leather, and give fast dyeings.

Abstract: The invention relates to chromium complexes of the formula ##STR1## in which B is the radical of a bidentate bianionic compound, L is H.sub.2 O, NH.sub.3, alkanol, alkylamine, dialkylamine, trialkylamine or pyridine, D is a benzene or naphthalene diazo component, Y is the nitrogen atom or the CH group, K is a coupling component, R is hydrogen, alkyl or phenyl, X is a fibre-reactive group,Ka is a cation, m is 1, 2 or 3, n is 1 or 2 and k is 0 or 1.These chromium complexes are suitable for dyeing nitrogen-containing or hydroxy-containing materials and they produce level dyeings having good all-round fastness properties.

Abstract: Metal complex dyes that produce level, fast dyeings on textile materials are provided according to the formula ##STR1## wherein: D is a benzene, naphthalene or heterocyclic radical of a diazo component;Y is nitrogen or --CH;K is the radical of a coupling component if Y is nitrogen, or an o-hydroxyaldehyde radical if Y is --CH:Ka is a cation;Me is chromium or cobalt;Z.sub.1 is --O-- or --COO-- ortho to N.dbd.YZ.sub.2 is --O-- or --NR vicinal to N.dbd.Y, wherein R is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl or phenyl;X is a fiber reactive radical bound directly to or through an amino or amino-containing group to the complex;R.sub.1 is a direct bond or substituted or unsubstituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkenyl, or aryl radical or heterocyclic radical containing 1 to 3 sulfur, oxygen or nitrogen atoms;R.sub.2 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.8 -alkyl or aryl;R.sub.3 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.

Abstract: Disclosed are chrome complex dyes of the formula ##STR1## and of the formula ##STR2## wherein Z and Z' independently of one another are each nitrogen or --CH--;X and X' independently of one another are each oxygen, or a group of the formula --NR--, in which R is hydrogen or C.sub.1 -C.sub.4 -alkyl, provided X is oxygen when Z is --CH-- and provided X' is oxygen when Z' is --CH--;A and B independently of one another are each a diazo component of a benzene or naphthalene radical which carries the hydroxyl or carboxyl group in the o-position with respect to the azo group;C and D independently of one another are each a benzene or naphthalene radical which carries in the o-position with respect to the azo or azomethine group a hydroxyl or carboxyl group, or the radical of an aliphatic or cycloaliphatic aminocarboxylic acid, if n.sub.2 or n.sub.

Abstract: 1:2 chromium complex dyes suitable for dyeing nitrogen-containing materials and materials which contain hydroxyl groups, are disclosed which, in the form of the free acid, have the formula ##STR1## wherein each of the symbols independently has the following meanings: Z is nitrogen or a --CH,A is a benzene or naphthalene radical which carries the hydroxyl or carboxy ortho to the azo or azomethine group, or, if n is 1 and Z is a --CH, is the radical of an aliphatic, cycloaliphatic or aromatic aminocarboxylic acid,B and D are each independently of the other the radical of a coupling component which couples in the alpha- or o-position relative to X if Z is nitrogen, or the radical of an o-hydroxyaldehyde if Z is --CH,X is oxygen or --NR, wherein R is hydrogen or C.sub.1 -C.sub.4 alkyl, with the proviso that X must be oxygen if Z is --CH,Y is a bridge member of the formula --SO.sub.2 or --SO.sub.2 --NR--SO.sub.2 --, wherein R is hydrogen or C.sub.1 -C.sub.4 alkyl,n is 0 or 1, andp is an integer from 0 to 6.

Abstract: A process for the manufacture of 2,4,6-triamino-5-nitro-pyridines of the general formula ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 represents a hydrogen atom, a substituted or unsubstituted aryl, aralkyl or cycloalkyl group or an aliphatic group, and R.sub.1 and R.sub.2, R.sub.3 and R.sub.4, and R.sub.5 and R.sub.6 together can form a ring which contains the amino-nitrogen, which process comprises(a) aminating a 2-halogeno-3-cyano-4,6-diaminopyridine, preferably 2-bromo-3-cyano-4,6-diamino-pyridine either to give the triaminopyridine of the formula ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.

Abstract: An azo dyestuff of the formula ##STR1## wherein two of the radicals Z denote groups of the formula --NR'R" and one radical Z denotes a group of the formulae --NR'R", --OR' or --S-R', and R' and R" and R" each denote hydrogen, aryl, aralkyl, cycloalkyl or an aliphatic radical and R' and R" can form a ring containing the amine nitrogen and the radicals --NR'R" can be identical to, or different from, one another, Z.sub.3 is also a hydrogen, chlorine or bromine atom or an optionally substituted hydrocarbon radical and D is the radical of an aromatic or heterocyclic diazo component. The new dyestuffs dye synthetic fibers, such as polyester and acrylic fibers in fast yellow, and red shades.