JPH0322422B

To prepare dyestuffs of the general formula or color bases of the general formula wherein R1 and R2 denote hydrogen, alkyl, alkenyl or aralkyl, R3 and R4 denote methyl or ethyl and X denotes an anion, and wherein the rings A and B and the radicals R1 and R2 can carry non-ionic substituents and the r...

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Bibliographische Detailangaben
Hauptverfasser:	HANSUUPEETAA KYUURUTAU, ROODERITSUHI RAUE
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM DYEING OR PRINTING TEXTILES DYES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR LAKES LAUNDERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS POLISHES TEXTILES TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:	To prepare dyestuffs of the general formula or color bases of the general formula wherein R1 and R2 denote hydrogen, alkyl, alkenyl or aralkyl, R3 and R4 denote methyl or ethyl and X denotes an anion, and wherein the rings A and B and the radicals R1 and R2 can carry non-ionic substituents and the rings A and B can carry further fused-on rings, an amine of the formula wherein B has the abovementioned meaning, and a compound of the formula +TR wherein R1, R3, R4 and A have the abovementioned meanings and R5 and R6 represent hydrogen, alkyl, alkoxy, phenoxy or phenyl, are reacted, in the presence of an acid, with a substance which releases nitrous acid and, if appropriate, the product is then reacted with a compound which forms the radicals R1' and/or R2', which represent alkyl, alkenyl or aralkyl which are optionally substituted by non-ionic radicals, and X.