Coumarin derivatives
AssigneeProduits Chimiques Ugine Kuhlmann
InventorsAnnick Marthe Suzanne Simone Domergue, Robert Frederic Michel Sureau
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Abstract
Coumarin compounds of the formula: ##STR1## in which R represents an alkyl group containing 1 to 5 carbon atoms, either unsubstituted or substituted by a non-ionic and non-chromophoric group, one of the substituents R.sub.1 or R.sub.2 represents a triazole radical, and the other represents hydrogen or a halogen, or an alkyl group containing from 1 to 3 carbon atoms, the triazole radical being unsubstituted or substituted by one or two substituents consisting of an alkyl group containing from 1 to 3 carbon atoms or an aryl group; processes for their preparation and their use as fluorescent brightening agents for polyester fibres.
Claims10
Coumarin compound of the formula:
- ##STR6## in which R represents an alkyl group containing 1 to 5 carbon atoms, one of the substituents R.sub.1 or R.sub.2 represents a triazole radical selected from the group consisting of 1,2,4-triazol-1-yl, 1,2,3-triazol-4-yl and 1,2,3-triazol-2-yl, and the other represents hydrogen or chlorine, or an alkyl group containing from 1 to 3 carbon atoms, the triazole radical being unsubstituted or substituted by one or two alkyl groups containing from 1 to 3 carbon atoms.
Dependencies are inferred from the claim text.