Reactive azo dyes with a coupler of the aminonaphthalene series

Details Reactive azo dyes with a coupler of the aminonaphthalene series Reactive azo dyes with a coupler of the aminonaphthalene series

C - Chemistry, Metallurgy

09

B

C09B 62/08 (2006.01) C07C 309/45 (2006.01) C07C 309/47 (2006.01) C07C 309/50 (2006.01) C07C 317/36 (2006.01) C07D 295/096 (2006.01) C09B 62/44 (2006.01) C09B 62/507 (2006.01) D06P 3/10 (2006.01) D06P 3/66 (2006.01)

Patent

CA 2199871

Reactive dyes have the formula (I), in which n equals 1 or 2; R1 stands for hydrogen or hydroxylsulfonyl; R2 stands for hydrogen or hydroxy; R3 stands for substituted C1-C4-alkyl, C5-C7-cycloalkyl or substituted phenyl; R4 stands for hydrogen or R3 and R4 form a heterocyclic rest together with the nitrogen atom that interconnects them; and D stands for the rest of a diazo or tetrazo component with at least one anchor rest. Also disclosed is the use of said dyes for dyeing or printing organic substrates having hydroxy groups or nitrogen atoms, and new aminonaphthalenes.

Des colorants réactifs ont la formule (I), dans laquelle n vaut 1 ou 2; R?1¿ désigne hydrogène ou hydroxylsulfonyle; R?2¿ désigne hydrogène ou hydroxy; R?3¿ désigne alkyle C¿1?-C¿4? substitué, cycloalkyle C¿5?-C¿7? ou phényle substitué; R?4¿ désigne hydrogène ou R?3¿ et R?4¿ forment un reste hétérocyclique avec l'atome d'azote qui les relie; et D désigne le reste d'un constituant diazoïque ou tétrazoïque avec au moins un reste d'ancrage. L'invention concerne également leur utilisation pour teindre ou imprimer des substrats organiques contenant des groupes hydroxy ou des atomes d'azote, ainsi que des aminonaphtalènes nouveaux.

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