Nitro dyes

C - Chemistry – Metallurgy – 09 – B

Patent

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Details

C09B 51/00 (2006.01) C07D 271/06 (2006.01) D06P 1/19 (2006.01)

Patent

CA 2195477

Nitro dyes of formula (I), in which X1 and X2 are hydrogen, C1-C6 alkyl, C1-C6 alkoxy or pyrrolidine-2-one-1-yl, X3 is hydrogen or C1-C6 alkyl and X4 is a radical of formula (a), (b) or (c), in which R1 is hydrogen, possibly substituted C1-C12 alkyl, possibly substituted C3-C7 cycloalkyl or possibly substituted phenyl, R2 and R3 are hydrogen, C1-C6 alkyl or C1-C6 alkoxy, R4 is hydrogen, methyl, ethyl, methoxy or ethoxy and R5 is hydrogen or C1-C6 alkyl and process for their production and their use in dyeing or printing textiles.

L'invention concerne des colorants nitrés de la formule (I) dans laquelle X?1¿ et X?2¿ désignent hydrogène, alkyle C¿1?-C¿6?, alcoxy C¿1?-C¿6? ou pyrrolidin-2-on-1-yle X?3¿ désigne hydrogène ou alkyle C¿1?-C¿6? et X?4¿ désigne un reste de la formule (a), (b) ou (c), où R?1¿ désigne hydrogène, alkyle C¿1?-C¿12? éventuellement substitué, cycloalkyle C¿3?-C¿7? éventuellement substitué ou phényle éventuellement substitué, R?2¿ et R?3¿ désignent hydrogène, alkyle C¿1?-C¿6? ou alcoxy C¿1?-C¿6?, R?4¿ désigne hydrogène, méthyle, éthyle, méthoxy ou éthoxy et R?5¿ désigne hydrogène ou alkyle C¿1?-C¿6?. L'invention concerne des procédés permettant de les préparer et leur utilisation pour teinter ou imprimer des matériaux textiles.

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