Monoazo reactive dyes
First Claim
1. A dyestuff according to formula (I) ##STR43## or a salt thereof, wherein the sulphonic acid group can be in 3- or 4- or 5-position of the phenyl ring, preferably in the 4-position, and RG, which is bonded in the 2- or 3-position of the naphthalene ring, signifies ##STR44## wherein X and Y, independently from each other are a substituent which is selected from Cl, F, an amino group of the formula --NR4 R5 wherein R4 and R5 are independently hydrogen or C1-4 alkyl, optionally substituted by OH, COOH or SO3 H or a group A--SO2 --B wherein A is a divalent group selected from C2-3 alkylene, C5-8 cycloalkylene or phenylene and B is a group selected from --CH═
- CH2, --CH═
CH--Z, --CH2 CH2 --Z or --CH(CH2 Z)--CH2 Z wherein Z is a group removable by alkali or R4 and R5 together with the nitrogen atom to which they are connected are a heterocycle having 4 to 8 carbon atoms optionally containing another hetero-atom selected from O, N or S or X is Cl or F and Y signifies a radical of formula (la) ##STR45## wherein W is C1-6 alkylene and all the substituents have the same definition as defined above with the proviso that W connects two identical radicals.
1 Assignment
0 Petitions
Accused Products
Abstract
A dyestuff according to formula (I) ##STR1## or a salt thereof wherein the substituents have the definitions as defined in claim 1.
The dyestuffs are useful for dyeing or printing nitrogen-containing or hydroxy-group-containing organic substrates and for the production of printing inks.
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Citations
9 Claims
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1. A dyestuff according to formula (I) ##STR43## or a salt thereof, wherein the sulphonic acid group can be in 3- or 4- or 5-position of the phenyl ring, preferably in the 4-position, and RG, which is bonded in the 2- or 3-position of the naphthalene ring, signifies ##STR44## wherein X and Y, independently from each other are a substituent which is selected from Cl, F, an amino group of the formula --NR4 R5 wherein R4 and R5 are independently hydrogen or C1-4 alkyl, optionally substituted by OH, COOH or SO3 H or a group A--SO2 --B wherein A is a divalent group selected from C2-3 alkylene, C5-8 cycloalkylene or phenylene and B is a group selected from --CH═
- CH2, --CH═
CH--Z, --CH2 CH2 --Z or --CH(CH2 Z)--CH2 Z wherein Z is a group removable by alkali or R4 and R5 together with the nitrogen atom to which they are connected are a heterocycle having 4 to 8 carbon atoms optionally containing another hetero-atom selected from O, N or S or X is Cl or F and Y signifies a radical of formula (la) ##STR45## wherein W is C1-6 alkylene and all the substituents have the same definition as defined above with the proviso that W connects two identical radicals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- CH2, --CH═
Specification