| abstract |
Water-soluble copper complex-formazan compounds which correspond to the general formula (1) below and have valuable fiber-reactive dye properties and dye material containing carbonamide and / or hydroxyl groups, in particular cellulose fibers, in real blue tones. in which mean: M is hydrogen or a salt-forming metal atom; k, m and n each represent the number zero, 1 or 2, the sum (k + m + n) being 1 to 4; A is a benzene or naphthalene ring, which can additionally contain the fiber-reactive group -NH-Q and other substituents; B is a benzene or naphthalene ring, which can additionally contain the fiber-reactive group -NH-Q and other substituents; D is optionally substituted alkylene of 1 to 8 carbon atoms or is a benzene or naphthalene ring with optionally additional substituents or is a heterocyclic radical; X is a sulfo group or an oxy or carbonyloxy group; r is the number 1 or 2; Q is a radical of formula (2) wherein Y is halogen, Z is vinyl or a β-substituted ethyl, G is the thio or an amino group -N (R) - where R is hydrogen or lower, optionally substituted alkyl or a group defined below -KW p , K alkylene or arylene or Arylene-alkylene or alkylene-arylene, the arylene and alkylene radicals of which can be substituted and / or interrupted by a hetero group, W is a water-solubilizing group and p is 1, 2 or 3; the group -NH-Q is bonded to an aromatic C atom of A or B or D or to an aliphatic C atom of D or a substituent of A or B, but not in the case of r = 2 to A or B at the same time or D. |