US 3,996,221 AGranted

Dyestuffs

AssigneeImperial Chemical Industries PLC

InventorsJohn Lindley Leng, Brian Parton, Denis Robert Annesley Ridyard, John Robert Lawson

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Abstract

Dyestuffs of the formula ##STR1## WHEREIN (R).sub.n represents n substituents R each of which may be independently halogen, lower alkyl, lower alkoxy or COOH R.sup.1 is H, optionally substituted lower alkyl, optionally substituted aryl or optionally substituted aralkyl, n is 0-3, (a+b) is 0-4, X is O, S or NR.sup.2, where R.sup.2 is H or optionally substituted lower alkyl, Y is an optionally substituted aliphatic or optionally substituted araliphatic linking group, and Each Z is independently a H or a cellulose-reactive group, and when (a+b) is O there is at least one SO.sub.3 H group as substituent on the groups R.sup.1, X or Y. The dyestuffs when both Z are H are valuable acid dyes, e.g. for wool, and when one or both Z are reactive groups the dyestuffs are valuable reactive dyestuff especially for cellulose fibers.

Claims3

Dependent claims

A dyestuff of the formula ##STR20## wherein R.sup.1 and R.sup.2 are selected from the group consisting of H, CH.sub.2 SO.sub.3 H and R.sup.1 and R.sup.2 together being --CH.sub.2 CH.sub.2 --,

G is selected from the group consisting of --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH(OH)CH.sub.2 --, --CH.sub.2 --CH(OSO.sub.3 H)CH.sub.2 -- and ##STR21## and each Z is independently selected from the group consisting of hydrogen, 2,3-dichloroquinoxaline-6-sulphonyl, trichloropyrimidinyl, dichloropyrimidinyl, 1,4-dichlorophthazine-6-carbonyl, dichloro-5-cyanopyrimidinyl, difluoro-5-chloropyrimidinyl, 1-(carboxylphenyl)-4,5-dichloro-6-pyridazonyl, dibromopyrimidinyl, tetrafluoro-cyclo-butylacryloyl, ##STR22## wherein W is selected from the group consisting of Cl and ##STR23## wherein n = 0 or 1, T is selected from the group consisting of Cl, NH.sub.2, C.sub.1.sup.-4 alkylamino, di(C.sub.1.sup.-4 alkyl)amino, C.sub.1.sup.-4 alkoxy, C.sub.2.sup.-3 hydroxyalkylamino, di(C.sub.2.sup.-3 hydroxyalkyl)amino, sulphophenoxy N-(.beta.-hydroxyethyl) sulphoanilino, N-(sulphomethyl)anilino, N-methylsulphoanilino, dicarboxyanilino, .beta.-sulphatoethylamino, sulphomethylamino, sulphonaphthylamino, disulphonaphthylamino, trisulphonaphthylamino, and ##STR24## wherein R.sup.10 is selected from the group consisting of hydrogen, CH.sub.3, NO.sub.2, NH.sub.2, Cl and COOH and q is 0, 1 or 2, and wherein ##STR25## is the N,N'-diradical of a diamine selected from the group consisting of 2,5-diaminobenzene sulphonic acid, 2,4-diaminobenzene sulphonic acid, 2,4-diaminobenzene-1,5-disulphonic acid, 2,5-diaminobenzene-1,4-disulphonic acid, 2,6-diaminonaphthalene-4,8-disulphonic acid, 1,5-diaminonaphthalene-3,7-disulphonic acid, 1,6-diaminonaphthalene-3,8-disulphonic acid, N-methyl-4-aminoaniline-2-sulphonic acid, N-butyl-4-aminoaniline-2-sulphonic acid, N-ethyl-4-aminoaniline-2-sulphonic acid and N-(.beta.-hydroxyethyl)-4-aminoaniline-2-sulphonic acid.

Dependencies are inferred from the claim text.