| 摘要 |
Dyes suitable for dyeing a wide range of textile and non-textile materials, in particular for dyeing leather and pelts, having, in the form of the free acid, the formula <IMAGE> (1) wherein D1 and D2 are each independently of the other the radical of a diazo component of the benzene or naphthalene series which carries a hydroxy or carboxy in ortho-position to the azo group and which may or may not be further substituted, K is the radical of a coupling component of the benzene or naphthalene series or of the heterocyclic series which carries the group X in ortho-position to the azo group and which may or may not be further substituted, Me is chromium or cobalt, Q is an unsubstituted or substituted phenyl or naphthyl radical or an unsubstituted or substituted aromatic-heterocyclic radical, R1 is unsubstituted or substituted C1-C6alkyl or unsubstituted or substituted phenyl, R2 is hydrogen or independently has the meaning of R1, X is -O- or -NR3, R3 is hydrogen or C1-C4alkyl, and p and q are each independently of the other 0 or 1.
|
