Isothiazolylazo dyes
AssigneeBASF SE
InventorsHermann Loeffler, Ernst Schefczik
Life of this patent
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Abstract
Compounds of the general formula I ##STR1## where X is unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl, Y is chlorine, bromine, carbamyl or cyano, Z is hydrogen, carbamyl, cyano or acetyl, R is hydrogen or C.sub.1 -C.sub.3 -alkyl, R.sup.1 and R.sup.3 independently of one another are each hydrogen or unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl or aryl, R.sup.2 is hydrogen or unsubstituted or substituted alkyl and R.sup.1 and R.sup.2, together with the nitrogen atom, form a saturated 5-membered or 6-membered ring, are particularly useful for dyeing textile fibers.
Claims2
An isothiazolylazo dye of the formula ##STR185## wherein X is unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl,
- Y is cyano,
- Z is cyano,
- R is hydrogen or C.sub.1 -C.sub.3 -alkyl,
- R.sup.1 and R.sup.3 independently of one another are each selected from the group consisting of
- H;
- and C.sub.1 -C.sub.8 -alkyl and C.sub.1 -C.sub.8 -alkoxy-(C.sub.1 -C.sub.8) alkyl which are unsubstituted or substituted by hydroxyl, C.sub.1 -C.sub.8 -alkoxy, phenoxy or phenyl, and
- C.sub.1 -C.sub.8 -cycloalkyl, or phenyl which are unsubstituted or substituted by chlorine, bromine, methyl, ethyl, methoxy or ethoxy,
- R.sup.2 is a group selected from hydrogen and alkyl, or
- R.sup.1 and R.sup.2, together with the nitrogen atom, form a saturated 5-membered or 6-membered ring.
Dependencies are inferred from the claim text.