Azo dyes with a coupling component of the aminothiazole series
AssigneeBASF SE
InventorsKarl-Heinz Etzbach, Rudiger Sens
Life of this patent
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Abstract
Azo dyes of the formula ##STR1## where D is the radical of a diazo component of the aniline series or the series of the aromatic heterocyclic amines, R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.10 -alkyl, which may be substituted, C.sub.5 -C.sub.7 -cycloalkyl, C.sub.3 -C.sub.4 -alkenyl, substituted or unsubstituted phenyl, or are together with the nitrogen atom joining them together a heterocyclic radical, and R.sup.3 is tert-butyl or tert-pentyl, are useful for thermal transfer and for dyeing or printing synthetic materials.
Claims11
An Azo dye of the formula I ##STR99## where R.sup.1 and R.sup.2 are independently of each other C.sub.1 -C.sub.10 -alkyl with or without substitution by cyano, hydroxyl, halogen, C.sub.1 -C.sub.4 -alkanoyloxy, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkoxycarbonyloxy or phenyl and with or without interruption by from 1 to 4 oxygen atoms in ether function, C.sub.5 -C.sub.7 -cyloalkyl, C.sub.3 -C.sub.6 -alkenyl, unsubstituted or C.sub.1 -C.sub.4 -alkyl-, C.sub.1 -C.sub.4 -alkoxy- or halogen-substituted phenyl, or R.sup.1 and R.sup.2 are together with the nitrogen atom joining them together a 5- or 6-membered saturated heterocyclic radical with or without further hetero atoms,
- R.sup.3 is tert-butyl or tert-pentyl, and
- D is a radical of a diazo component of the aniline series or the series of the aromatic heterocyclic amines.
An azo dye of the formula ##STR101## wherein R.sup.1 and R.sup.2 are each independently a C.sub.1-10 alkyl;
- R.sup.3 is tert-butyl;
- L.sup.6 is cyano;
- and
- L.sup.9 is cyano, unsubstituted or phenyl- or C.sub.1-4 alkoxy-substituted C.sub.1-16 alkyl, unsubstituted or phenyl-substituted C.sub.1-8 alkoxy, unsubstituted or phenyl-substituted C.sub.1-8 alkylthio, substituted or unsubstituted phenyl, thienyl, C.sub.1-4 alkylthienyl, pyridyl or C.sub.1-4 alkylpyridyl, or together with L.sup.6, a fused benzo radical.
Dependencies are inferred from the claim text.