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SPECIFIC MONOCATIONIC MONOCHROMOPHORIC COMPOUNDS OF HYDRAZONE TYPE COMPRISING A 2-, 4-PYRIDINIUM OR 2-, 4-QUINOLINIUM UNIT, SYNTHESIS THEREOF, DYE COMPOSITIONS CONTAINING THEM, AND METHOD FOR DYEING KERATIN FIBRES
申请公布号：US2009300856(A1)
申请号：US20070296721
申请日期：2007.04.13
申请公布日期：2009.12.10
发明人：DAVID HERVE;MURGUET NADEGE;GREAVES ANDREW
分类号：A61K8/49;A61Q5/10;C07D213/36;C07D215/12;C07D413/12
主分类号：A61K8/49
摘要：One subject of the present invention is monocationic monochromophoric compounds of formula (I) and/or (II) below: in which: R1 represents a hydrogen or an alkyl, phenyl, benzyl, alkylcarbonyl, alkylsulphonyl, aminosulphonyl or aminocarbonyl radical; R5 represents an alkyl, phenyl or benzyl radical; R2 and R3, represent a halogen or an alkyl, aryloxy, arylamino, hydroxyl, alkoxy, (poly)hydroxyalkoxy, alkoxycarbonyl, alkylcarbonyloxy, amino, alkylcarbonylamino, aminocarbonyl, ureido, aminosulphonyl, alkylthio, alkylsulphonylamino, cyano, trifluoromethyl, thio, alkylsulphinyl or alkylsulphonyl radical; R4 represents a hydrogen or an alkyl, amino, alkylcarbonylamino, ureido, alkylsulphonylamino, hydroxycarbonyl, alkoxycarbonyl, cyano, phenyl or benzyl radical; R6 and R7, represent a hydrogen or an alkyl, alkylcarbonyl, alkoxycarbonyl, alkoxyaryl, aminoaryl, aminocarbonyl or alkylsulphonyl radical; and n is between 0 and 4, n' is between 0 and 4, the electroneutrality of the compounds of formulae (I) and (II) being ensured by one or more cosmetically acceptable anions An. Another subject of the invention is dyeing compositions comprising said compounds as direct dye, and also a method for dyeing keratin fibres using this composition and a multicompartment device. It finally relates to methods for synthesizing compounds of formula (I) and/or (II).