Anthrapyridone compounds having vinylsulfone type fiber reactive group through triazinyl bridging group

A compound of the formula (I) ##STR408## wherein R.sub.1 is hydrogen, benzoyl unsubstituted or substituted once or twice by C.sub.1 -C.sub.4 alkoxy, sulfo, carboxy, chloro or C.sub.1 -C.sub.4 alkyl, acetyl or alkyloxycarbonyl in which the alkyl moiety has 1 to 4 carbon atoms;

• R.sub.2 is hydrogen or alkyl having 1 to 4 carbon atoms unsubstituted or substituted by hydroxy;
• R.sub.3 is hydrogen, halo, sulfo, phenoxy unsubstituted or substituted once or twice by C.sub.1 -C.sub.4 alkoxy, sulfo, carboxy, chloro or C.sub.1 -C.sub.4 alkyl, phenylthio unsubstituted or substituted once or twice by C.sub.1 -C.sub.4 alkoxy, sulfo, carboxy, chloro or C.sub.1 -C.sub.4 alkyl, or alkoxy having 1 to 4 carbon atoms;
• R.sub.4 is hydrogen, halo or sulfo;
• R.sub.5 is hydrogen or methyl;
• R.sub.6 is hydrogen or alkyl having 1 to 3 carbon atoms unsubstituted or substituted by hydroxy, carboxy or carbamoyl;
• V is --O--, --S-- or ##STR409## in which R.sub.7 is hydrogen, acetyl or methyl;
• B is phenylene unsubstituted or substituted once or twice by methyl, ethyl, methoxy, ethoxy, chloro, bromo, carboxy, sulfo or nitro, or naphthylene unsubstituted or substituted by sulfo;
• D is vinyl or --CH.sub.2 CH.sub.2 L in which L is a group capable of being split by the action of an alkali;
• A is a divalent group of the following formula (1), (2), (3), (4), (5) or (6), the formula (1) being ##STR410## wherein R.sub.8, R.sub.9 and R.sub.10 are independently each hydrogen, methyl, ethyl, methoxy, ethoxy, halo or carboxy, k is 0 or 1 and l is 0, 1 or 2,
• the formula (2) being ##STR411## wherein m is 0, 1, 2 or 3, the formula (3) being ##STR412## wherein n is an integer of 2 to 6, the formula (4) being ##STR413## wherein R.sub.11, R.sub.12, R.sub.13, R.sub.14, R.sub.15 and R.sub.16 are each hydrogen, and p and p' are each 0, 1 or 2, provided that the sum of p and p' is 1 or 2,
• the formula (5) being ##STR414## wherein R.sub.17, R.sub.18 and R.sub.19 are each hydrogen, Y is --NH--, q is an integer of 2 to 6, and r is 0, 1 or 2 and
• the formula (6) being ##STR415## wherein R.sub.22, R.sub.23, R.sub.24, R.sub.25, R.sub.26 and R.sub.27 are each hydrogen, Y' is --O--, or --NH--, and s and t are each 0, 1 or 2;
• and X is fluoro, chloro or a group of the following formula (7), (8), (9) or (10),
• the formula (7) being ##STR416## wherein R.sub.30, R.sub.31 and R.sub.32 are independently each alkyl having 1 to 4 carbon atoms,
• the formula (8) being ##STR417## wherein R.sub.33 is hydrogen, chloro, cyano, hydroxy, vinyl, carbamoyl, .beta.-hydroxyethyl or carboxy,
• the formula (9) being ##STR418## wherein R.sub.34 and R.sub.35 are independently each hydrogen, alkyl having 1 to 4 carbon atoms unsubstituted or substituted once or twice by C.sub.1 -C.sub.4 alkoxy, sulfo, carboxy, hydroxy, chloro, phenyl or sulfato, phenyl unsubstituted or substituted once or twice by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, sulfo, carboxy, or chloro, naphthyl unsubstituted or substituted once or twice or three times by hydroxy, carboxy, sulfo, C.sub.1 -C.sub.4 alkoxy or chloro, or benzyl unsubstituted or substituted once or twice by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, sulfo or chloro,
• and the formula (10) being ##STR419## wherein R.sub.36 is hydrogen, methyl or ethyl, B' is phenylene unsubstituted or substituted once or twice by methyl, ethyl, methoxy, ethoxy, chloro, bromo, carboxy, sulfo or nitro, or naphthylene unsubstituted or substituted by sulfo, and D' is vinyl or --CH.sub.2 CH.sub.2 L in which L is as defined hereinabove, with the proviso that at least one of R.sub.1, R.sub.3, A and B is or has sulfo.