N-(aminobenzoyl)-aminoarylsulfonic acids
AssigneeHoechst Aktiengesellschaft
InventorsGunter Laubert, Joachim Ribka
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Abstract
N-(aminobenzoyl)-aminoarylsulfonic acids and their alkali metal salts of the formula ##STR1## WHEREIN X is hydrogen, chlorine, bromine, lower alkyl, lower alkoxy, alkylamino, trifluoromethyl, phenyl, phenoxy, nitro or cyano, Y represents hydrogen, chlorine, bromine, lower alkyl or lower alkoxy, A is phenylene or naphthylene and n is 1 or 2, the sulfo group standing in 4-position to the benzoylamino group (which is in 1-position), are diazo components for the preparation of azo dyestuffs and the color toners and color lakes which may be obtained therefrom and which possess very good properties of fastness.
Claims7
A N-(aminobenzoyl)-aminoarylsulfonic acid or its alkali metal salt of the formula ##STR8## wherein X is hydrogen, chloride, bromine, lower alkyl, lower alkoxy, carbomethoxy, carboethoxy, mono- or dilower alkylamino, trifluoromethyl, phenyl, phenoxy, nitro or cyano, Y is hydrogen, chlorine, bromine, lower alkyl or lower alkoxy, A is phenyl or 1-naphthyl, n is 1 or 2, the sulfo group standing in 4-position.
A N-(aminobenzoyl)-aminophenylsulfonic acid or its alkali metal salt of the formula ##STR9## wherein Y is hydrogen, chlorine, bromine, lower alkyl or lower alkoxy and n is 1 or 2.
The compound of the formula ##STR10##
The compound of the formula ##STR11##
The compound of the formula ##STR12##
The compound of the formula ##STR13##
The compound of the formula ##STR14##
Dependencies are inferred from the claim text.