NOUVEAUX COMPOSES MONOAZOIQUES UTILISABLES COMME COLORANTS REACTIFS ET LEUR PREPARATION

L'INVENTION A POUR OBJET LES NOUVEAUX COMPOSES MONOAZOIQUES DE FORMULE:(CF DESSIN DANS BOPI)DANS LAQUELLE M SIGNIFIE 1 OU 2, N SIGNIFIE 0 OU 1, HAL REPRESENTE L'HALOGENE, R SIGNIFIE UN GROUPE ALKYLE, R REPRESENTE UN GROUPE SULFO, ALKYLSULFONYLE OU ALCOXYCARBONYLAMINO OU UN GROUPE PHENYLSULFONYLE OU SULFAMOYLE EVENTUELLEMENT SUBSTITUES, R REPRESENTE L'HYDROGENE OU UN GROUPE ALKYLE OU ALCOXY, R SIGNIFIE L'HYDROGENE OU UN GROUPE ALKYLE, R REPRESENTE L'HYDROGENE OU UN GROUPE CYCLOHEXYLE OU PHENYLE EVENTUELLEMENT SUBSTITUES ET R SIGNIFIE L'HYDROGENE OU UN GROUPE HYDROXY, ET LEUR PREPARATION.CES COMPOSES PEUVENT ETRE UTILISES COMME COLORANTS POUR LA TEINTURE OU L'IMPRESSION DE SUBSTRATS ORGANIQUES CONTENANT DES GROUPES HYDROXY OU DES ATOMES D'AZOTE. Mono-azo reactants for fibers, having the formula: (FORMULA) wherein the different meanings of the symbols Ru to Ru, Hal, m and n are given in claim 1, with the conditions that: a) n can not be zero and must be zero when Ru is -NHCOORu; b) the group -NHRu and the azo group are in ortho position one with respect to the other and are in the positions 1 and 2 and respectively 2 and 1 of the naphtalen ring, and c) when n equals 1, m equals 1 and the azo group is in position 1 of the naphtalen ring, then either Ru in the position 8 of the ring is not a group OH or the sulphonic group is in a position other than position 4 of the ring, comprising at least two sulphonics groups per molecule, the mixture and the salts thereof. The compounds are obtained by coupling of the corresponding starting products and prior or subsequent condensation with the triazinic compound. They are used as dyes for the coloration or impression of substrates comprising nitrogen-containing groups or OH groups, such as for example natural or regenerated cellulose or natural or synthetic polyamides, particularly wool. Easily combinable, they are appropriate as elements for the trichromatic process, for example with coloring anthraquinonic acids.