Diaminopyrazole derivatives and their use for oxidation dyeing of keratinous fibres

The invention concerns novel diaminopyrazole derivatives of formula (I), wherein: R1 represents C1-C6 alkyl or C2-C6, preferably up to C4, alkenyl, linear or branched, bearing at least a substituent selected among OR, NHR, NRR', SR, SO2R, COOH, CONH2, CONRR', PO(OH)2, SH, SO3X, a non-catio...

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Bibliographische Detailangaben
Hauptverfasser:	FESSMANN THILO, TERRANOVA ERIC
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM DYEING OR PRINTING TEXTILES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HYGIENE LAUNDERING MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS TEXTILES TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:	The invention concerns novel diaminopyrazole derivatives of formula (I), wherein: R1 represents C1-C6 alkyl or C2-C6, preferably up to C4, alkenyl, linear or branched, bearing at least a substituent selected among OR, NHR, NRR', SR, SO2R, COOH, CONH2, CONRR', PO(OH)2, SH, SO3X, a non-cationic heterocycle, Cl, Br or I-; X represents H, Na, K or NH4; R and R', identical or different, represent C1-C6 alkyl or C2-C6, preferably up to C4, alkenyl, linear or branched, unsubstituted or substituted by one or several functional groups selected among OH, NH2, OR, NHR, NRR', SR, SOR, SO2R, COOH, CONH2, CONRR', PO(OH)2, SH, SO3X, a non-cationic heterocycle, Cl, Br or I, X, R and R' having the definitions mentioned above; R2 represents H, or C1-C6 alkyl or C2-C6, preferably up to C4, alkenyl, linear or branched, unsubstituted or substituted by one or several functional groups selected among OH, NH2, OR, NHR, NRR', SR, SOR, SO2R, COOH, CONH2, CONRR', PO(OH)2, SH, SO3X, a non-cationic heterocycle, Cl, Br or I, X, R and R' having the definitions mentioned above; and their physiologically acceptable salts, and their use for oxidation dyeing of keratinous fibres, in particular human hair.