Azo disperse dyes having 1,2,4-triazol-5-yl diazo component radicals having electron-withdrawing substituents in the 3-positions
AssigneeSandoz Ltd.
InventorPeter Matzinger
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Abstract
Compounds of the formula ##STR1## wherein R.sub.1 is C.sub.1-18 alkyl, substituted C.sub.1-18 alkyl, phenyl, substituted phenyl, C.sub.3-6 alkenyl, substituted C.sub.3-6 alkenyl, C.sub.3-6 alkynyl or substituted C.sub.3-6 alkynyl, R.sub.2 is an electron withdrawing substituent; and K is the residue of a coupling component that is free of any water solubilizing groups. The compounds are disperse dyes which can be used to dye, print or pad fully synthetic or semi-synthetic hydrophobic high molecular weight organic material.
Claims20
A compound of the formula ##STR30## wherein K is a coupling component radical free of water-solubilizing groups,
- R.sub.1 is C.sub.1-18 alkyl, substituted C.sub.1-18 alkyl, phenyl, substituted phenyl, C.sub.2-6 alkenyl, substituted C.sub.3-6 alkenyl, C.sub.2-6 alkynyl or substituted C.sub.3-6 alkynyl, and
- R.sub.2 ' is halo;
- chloromethyl;
- bromomethyl;
- dichloromethyl;
- dibromomethyl;
- trifluoromethyl;
- trichloromethyl;
- tribromomethyl;
- cyano;
- aminocarbonyl;
- formyl;
- (C.sub.1-6 alkyl)carbonyl;
- (C.sub.1-6 alkoxy)carbonyl;
- C.sub.2-6 alkenyl monosubstituted by phenyl, (C.sub.1-6 alkoxy)carbonyl or carboxy;
- or C.sub.2-6 alkynyl monosubstituted by phenyl, (C.sub.1-6 alkoxy)carbonyl or carboxy.
Dependencies are inferred from the claim text.