Basic azo dyestuffs containing a quaternized n-alkyl-n - beta-(imidazolyl) lower alkylarylamine group

Abstract

Abstract A BASIC DYESTUFF OF THE FORMULA: ((2-R2,3-Q,4-R3-IMIDAZOL-1-YL)-P-N(-R1)-B-N=N-)N-A (X)N(-) WHEREIN: A IS A RESIDUE SELECTED FROM THE GROUP CONSISTING OF SUBSTITUTED AND UNSUBSTITUTED BENZENES, DIPHENYLS, DIPHENYLMETHANES, AZOBENZENES, THIAZOLES, BENZOTHIAZOLES, THIADIOZOLES, TRIAZOLES, AND DERIVATIVES THEREOF, WHEREIN THE SUBSTITUENTS ARE NON-WATER-SOLUBILIZING SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE, NITRILE, NITRO, ACETYL, TRIFLUOROMETHYL, LOWER ALKYLSULPHONYL, SULPHONAMIDE, MONO- AND DI-LOWER ALKYLSULPHONAMIDE, LOWER ALKOXYCARBONYL, ACETYLAMINE, PHENYLAMINE, PHENYL, LOWER ALKYL AND LOWER ALKOXY; B IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF SUBSTITUTED AND UNSUBSTITUTED PHENYLENE AND NAPHTHYLENE RADICALS BONDED TO THE AZO AND THE AMINO GROUPS IN THE 1- AND 4-POSITIONS, WHEREIN THE SUBSTITUENTS ARE NON-WATERSOLUBILIZING SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF CHLORINE, METHYL, METHOXY AND ACETYLAMINO; R1 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL HAVING FROM 1 TO 4 CARBON ATOMS, B-CYANOETHYL, B-HYDROXYETHYL AND BENZYL; R2 AND R3 EACH IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, METHYL, ETHYL AND PHENYL; P IS AN ALKYLENE RADICAL HAVING FROM 2 TO 3 CARBON ATOMS; Q IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, BENZYL AND CARBAMOYLETHYL; X IS AN ANION; AND N IS 1 OR 2. THE DYESTUFFS OF THE PRESENT INVENTION ARE USEFUL AS DYES FOR A WIDE VARIETY OF MATERIALS, INCLUDING TANNED CELLULOSIC FIBERS, SILK, LEATHER, CELLULOSE ACETATE, PAPER, AND SYNTHETIC FIBERS, ESPECIALLY POLYMERIC AND COPOLYMERIC ACRYLONITRILE. THE DYESTUFF OF THE PRESENT INVENTION IS PARTICULARLY SUITABLE FOR DYEING POLYACRYLONITRILE FIBERS WITH EXCELLENT LIGHT, WET, AND HEAT-FASTNESS PROPERTIES.

Inventors

• 👤 Masao Iizuka
• 👤 Kyokuji Arakawa
• 👤 Yoshiaki Yamamoto

Bibliographic Details