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US 4,334,068 AGranted
Process for the preparation of triazinylamino-anthraquinones
AssigneeBayer Aktiengesellschaft
InventorRutger Neeff
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Abstract
Anthraquinone dyestuffs of the formula ##STR1## wherein A is an optionally substituted anthraquinone radical and R is an optionally substituted aryl radical, are obtained in outstanding yields, and without pollution of the effluent, by reacting 1 mol each of amino-anthraquinone and cyanuric chloride in excess phenol in a one-pot process and at 50.degree.-200.degree. C. in the absence of acid acceptors and organic solvents.
Claims4
A process for the preparation of a monoanthraquinonyl-amino-diaryloxy-triazine of the formula ##STR12## wherein A is an anthraquinone radical and
- R is an aryl radical, comprising condensing one mol of the corresponding amino-anthraquinone with one mol of cyanuric chloride and an excess of the corresponding phenol at elevated temperature in a one-stage procedure in the absence of acid acceptors and extraneous organic solvents.
Dependencies are inferred from the claim text.