Azo compounds

Claim 1

A chromium complex containing one molecule of each of the following formula: ##EQU4## and ##SPC31## D 1 is phenyl or naphthyl, or phenyl or naphthyl substituted by chloro, bromo, lower alkyl, aryl, lower alkoxy, aryloxy, nitro, sulfo, sulfonamido, sulfonamido substituted by lower alkyl, lower hydroxyalkyl, lower alkoxyalkyl, lower cyanoalkyl, aralkyl, C 5 -C 9 -cycloalkyl or aryl, lower alkoxyalkylsulfonyl lower hydroxy-, chloro-, cyano-, or alkoxyalkylsulfonyl, arylsulfonyl, arylazo, lower alkanoyl, benzoyl and acylamino, wherein "lower" means "containing 1 to 5 carbon atoms", "aryl" designates naphthyl or phenyl, or phenyl or naphthyl substituted by chloro, bromo, nitro, sulfo, carboxy, lower alkyl, lower alkoxy and acylamino and "acylamino" means --NH 2 substituted by lower alkanoyl, lower alkoxycarbonyl, lower alkylsulfonyl, benzoyl, chloro-, nitro- or methylbenzoyl, phenylsulfonyl, chloro-, nitro- or methylphenyl-sulfonyl or chloro, bromo- or sulfatosubstituted lower alkanoyl or alkylsulfonyl, lower alkenoyl or lower alkenoyl substituted by chloro or bromo, chloro- or bromo-substituted triazinyl and pyrimidyl, 2,6-dichloropyrimidine-5-carbonyl, 2,3-dichlorochinoxaline-7-carbonyl-, 1,4-dichlorophthalazine-7-carbonyl; A 1 and A 2 are each independently phenyl or phenyl substituted by lower alkyl, acetylamino, propionylamino, ethoxycarbonylamino, methylsulfonylamino, benzoylamino, chloro-, nitro- or methyl-benzoylamino, benzoylamino, phthaloylamino, phenylsulfonylamino, chloro-, nitro- or methylphenylsulfonylamino, chloroacetylamino, α,β-dibromopropionylamino, β-sulfatoethylsulfonylamino, acryloylamino, α-bromoacryloylamino, 2,4-dichlorotriazinylamino, 2-chloro-4-methoxytriazinylamino, 2-chloro-4-isopropoxytriazinylamino, 2,4,5-trichloropyrimidylamino, sulfo, --NH 2 , hydroxy, lower alkanoyl and arylazo, naphthyl or naphthyl substituted by sulfo, hydroxy, acylamino, sulfonamido, --NH 2 , phenylamino and sulfo- or --NH 2 -substituted anilino, or 3-methyl-pyrazolyl bound to the azo group in position 4, carrying the OH-group in position 5 and substituted in position 1 by phenyl or naphthyl or phenyl or naphthyl substituted by chloro, lower alkyl, lower alkoxy, --NH 2 , nitro, sulfonamido, sulfonamido substituted by lower alkyl, lower hydroxyalkyl, lower alkoxyalkyl, lower cyanoalkyl, aralkyl, C 5 -C 9 -cycloalkyl or aryl and lower alkyl-lower hydroxyalkyl-, lower chloroalkyl-, lower alkoxy-alkyl- or lower cyanoalkylsulfonyl, or the residue of acetoacetanilide or acetoacetanilide substituted in the anilide nucleus by lower alkyl, lower alkoxy, sulfo, lower alkyl-, lower hydroxyalkyl-, lower alkoxyalkyl- or lower cyanoalkylsulfonyl, sulfonamido, substituted sulfonamido, chloro or --NH 2 , wherein "lower", "aryl" and "acylamino" are defined as above; and U is hydrogen, sulfo, chloro, bromo, nitro, acylamino or arylazo, the meanings of the latter terms being the same as defined above.