Water-soluble fiber-reactive colorants, method for the production thereof, and use their use

1. A dye of the general formula (1):

wherein

M is hydrogen, alkali, ammonium or the equivalent of an alkaline earth metal ion,

X is halogen, C 1 -C 4 alkoxy, amino, a 5- or 6-membered nitrogen heterocycle of the formula (a), (b), (c) or (d)

 wherein when X is a group of the formula (a)

A- is fluoride, chloride or the equivalent of a sulfate ion and

n is 1 or 2;

or X is unsubstituted or sulfo- or hydroxyl-mono- or -disubstituted anilino, an alkylamino or N,N-dialkylamino with C 1 -C 4 -alkyl,

R 1 is C 1 -C 6 alkyl, C 1 -C 6 -alkoxy, chlorine, C 1 -C 4 -alkylcarbonylamino or arylcarbonylamino;

R 2 has any meaning of R 1 or else R 1 and R 2 combine to form a ring of the formula (f) or (g):

R 3 is C 1 -C 6 -alkyl or hydrogen;

Q is a grouping of the formula (e)

 wherein

R 4 has any meaning of R 3 or is phenyl which is optionally substituted by chlorine or sulfo;

W is a C n H 2n -alkylene group wherein n is 2 to 6, which is optionally interrupted by 1 or 2 oxygen atoms or an NR 5 group, wherein

R 5 has any meaning of R 3 or is phenyl, or else when X is fluorine or chlorine, Q can be a group of the formula (a), (b), (c) or (d),

Y is vinyl or is a grouping of the formula CH 2 CH 2 Z wherein

Z is an alkali-eliminable group.

2. The dye as claimed in claim 1 wherein

X is fluorine, chlorine, methoxy, ethoxy N,N-dimethylamino or N,N-diethylamino,

R 1 is methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, sec-butyl, tert-butyl, pentyl, hexyl, methoxy, ethoxy, propyloxy, butyloxy, methylcarbonylamino, ethylcarbonylamino, propylcarbonylamino, butylcarbonylamino or phenylcarbonylamino;

R 3 methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, sec-butyl, tert-butyl, pentyl or hexyl; and

Z is chloro, acetyl, phosphato, quaternary nitrogen group or sulfato.

3. The dye as claimed in claim 1 , wherein X is chloro or fluoro.

4. The dye as claimed in claim 1 , wherein Y is ethenyl or β-sulfatoethyl.

5. The dye as claimed in claim 3 , wherein Y is ethenyl or β-sulfatoethyl.

6. The dye as claimed in claim 1 , wherein R 1 and R 2 are each methoxy.

7. The dye as claimed in claim 5 , wherein R 1 and R 2 are each methoxy.

8. The dye as claimed in claim 1 , wherein W is ethylene, propylene or 3-oxapentyl.

9. The dye as claimed in claim 7 , wherein W is ethylene, propylene or 3-oxapentyl.

10. The dye as claimed in claim 1 , wherein R 3 is hydrogen and R 4 is hydrogen or methyl.

11. The dye as claimed in claim 9 , wherein R 3 is hydrogen and R 4 is hydrogen or methyl.

12. A process for preparing the dye as claimed in claim 1 , which comprises starting from a compound of the formula (1a)

by diazotization with sodium nitrite in aqueous hydrochloric acid and subsequent coupling onto a compound of the formula (1b)

to prepare a dye of the formula (1c)

and further diazotization and coupling of the resultant compound onto an R 3 —N-substituted 5-hydroxy-1,7-disulfo-2-naphthylamine to form a compound of the formula (1d)

which is converted by reaction with copper sulfate pentahydrate and ammonia at 80 to 100° C. to obtain a chromophore of the formula (1e)

which is reacted with a trihalotriazine and subsequent reaction of the resultant dihalotriazinylbisazo compound (1f)

with Q—H, where Q is as defined above, to form the compound (1).

13. A process for dyeing or printing hydroxyl- and/or carboxamido-containing material which comprises applying one or more dyes as claimed in claim 1 in dissolved form to the material and fixing the dye or dyes on the material by (a) means of heat, (h) by means of an alkali or (c) means of heat and an alkali.

14. The process as claimed in claim 13 , wherein the material is a fiber material.