Anthraquinone dyestuffs

Abstract

Abstract ANTHRAQUINONE DYESTUFFS WHICH ARE SPARINGLY SOLUBLE IN WATER AND ARE FREE OF GROUPS WHICH DISSOCIATE IN WATER TO GIVE AN ACID REACTION AND IMPART SOLUBILITY IN WATER, OF THE FORMULA I 1,5-DI(HO),2-(R3-COO-(Y2-O)(N-1)-Y1-O-C6H4-),4-(R2-NH-), 8-(R1-NH-),(X)M-ANTHRAQUINONE IN WHICH R1 AND R2, INDEPENDENTLY OF ONE ANOTHER, EACH DENOTE HYDROEN OR A LOWER ALKYL GROUP, X DENOTES HYDROGEN OR HALOGEN, Y1 AND Y2, INDEPENDENTLY OF ONE ANOTHER, EACH DENOTE A LOWER ALKYLENE GROUP WHICH IS OPTIONALLY SUBSTITUTED BY A HYDROXYL GROUP OR A LOWER ALKOXY GROUP, M AND N EACH DENOTE ONE OF THE NUMBERS 1 OR 2, AND R3 DENOTES AN OPTIONALLY SUBSTITUTED ALIPHATIC OR AROMATIC HYDROCARBON RADICAL OR A LOWER ALKYLAMINO, A CYCLOALKYLAMINO OR AN OPTIONALLY RING-SUBSTITUTED ARYLAMINO GROUP, AND IN WHICH THE BENZENE RING A IS OPTIONALLY SUBSTITUTED FURTHER BY HALOGEN, OR BY A LOWER ALKYL OR LOWER ALKOXY GROUP.

Inventors

• 👤 U Karlen
• 👤 A Staub
• 👤 H Bosshard
• 👤 M Diamantoglou
• 👤 H Koelliker

Bibliographic Details