Water-insoluble azo-purimidine pigments and their use in coloring substrates

US4421601A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Gunter Stephan
• Karl H. Schundehutte · Leverkusen, DE

Key dates

• Filing date: Jan 3, 1978
• Grant date: Dec 20, 1983
• Expiry date: Jan 3, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B29/3669
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A dyestuff of the formula ##STR1## wherein X.sub.1 denotes amino, cyanamino, acetylamino, guanidino, ureido or hydroxyl; PA1 Y.sub.1 and Z.sub.1 denote hydroxyl or amino, with the proviso that at most 2 of the 3 radicals X.sub.1, Y.sub.1 and Z.sub.1 denote hydroxyl; PA1 R.sub.1 represents hydrogen, nitro, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, nitrile, C.sub.1 -C.sub.4 -alkylsulphonyl, trifluoromethyl, phenylsulphonyl, benzylsulphonyl, phenoxy, carbo-C.sub.1 -C.sub.4 -alkoxy, carbophenoxy, carbonamido, C.sub.1 -C.sub.4 -alkylcarbonylamino, benzoylamino, sulphonamido, or carbonamido or sulfonamide mono-substituted or disubstituted by C.sub.1 -C.sub.4 -alkyl, phenyl, or benzyl; and PA1 R.sub.2 and R.sub.3 represent hydrogen; chlorine C.sub.1 -C.sub.4 -alkyl, carbo-C.sub.1 -C.sub.4 -alkoxy, carbonamido; carbonamido mono-substituted or disubstituted by C.sub.1 -C.sub.4 -alkyl, phenyl, or benzyl, or C.sub.1 -C.sub.4 -alkoxy and a process for coloring substrates using such dyestuff.