US 4,544,738 A · Reactive pyrazole group containing monoazo dye

Abstract

A dye of the formula ##STR1## wherein R.sup.1 is is fluorine, chlorine, bromine, methyl, ethyl, cyano, carboxyl, nitro, tribfluoromethyl, methylsulfonyl, phenylsulfonyl, acetyl, C.sub.1 -C.sub.4 alkoxy, phenoxy, chlorophenoxy or benzoyl; R.sup.2 is hydrogen, chlorine, bromine, methyl, ethyl, C.sub.1 -C.sub.4 alkoxy, benzthiazol-2-yl, 6-methylbenzthiazol-2-yl, acetylamino, carboxyl aminosulfonyl, or aminocarbonyl; R.sup.3 is hydrogen chlorine, bromine or methyl; R.sup.5 is hydrogen, methyl, methoxy or ethoxy; and X is fluorohydroxyphosphonyl or dihydroxyphosphonyl. The dye of the present invention is useful in the dyeing of cellulose-containing material, polyamides and leather. The high tinctorial strength of the dyes and the very good lightfastness and wetfastness properties of the dyeings are particularly noteworthy.

Claims4

Dependent claims

A dye of the formula ##STR142## wherein R.sup.8 is fluorine, chlorine, bromine, methyl, ethyl, trifluoromethyl, methoxy or ethoxy;

R.sup.9 is hydrogen, chlorine, methyl, ethyl, methoxy or ethoxy;
and
X is a reactive radical capable under dyeing or printing conditions of forming a covalent bond with the substrate being dyed or printed selected from the group consisting of 2,4-dichloro-triazin-6-yl, 2,4-di-chloropyrimidin-6-yl, 2,5,6-trichloro-pyrimidin-4-yl, 2,5,6-tri-fluoropyrimidin-4-yl, 2,6-difluoro-5-chloropyrimidin-4-yl, 2,4-dichloropyrimidine-5-carbonyl, 2,6dichloro-5-cyano-pyrimidin-4-yl, 3,4,6-trichloro- and tri-fluoropyridazin-5-yl, 2,3-dichloroquinoxaline-6-carbonyl, 2-chlorobenzthiazole-6-carbonyl, chloroacetyl, .beta.-chloropropionyl, .alpha.,.beta.-dichloro-propionyl, .alpha.,.beta.-dibromopropionyl, acrylyl or .alpha.-bromoacrylyl.

Dependencies are inferred from the claim text.

Reactive pyrazole group containing monoazo dye

Life of this patent

Reactive pyrazole group containing monoazo dye

Life of this patent

Abstract

Claims4