申请人:L'Oreal
公开号:US04888445A1
公开(公告)日:1989-12-19
The invention relates to a compound of formula ##STR1## in which: X denotes a branched or unbranched alkylene radical containing 2 to 6 carbon atoms, optionally being able to be substituted with one or more hydroxyl radicals; R denotes a hydrogen atom, an alkyl or a mono- or polyhydroxyalkyl radical or an aminoalkyl radical in which the amine group can be mono- or disubstituted with an alkyl radical or with a mono- or polyhydroxyalkyl radical, the nitrogen atom also being able to form part of a heterocyclic system and the alkyl radicals containing 1 to 4 carbon atoms; R' denotes a hydrogen atom or a C.sub.1 to C.sub.4 alkyl radical; Y and Z denote a nitro and/or --NHR.sub.1 radical, R.sub.1 and R, which may be identical or different, having the meanings given above for R, with the proviso that when Y and Z are identical, they necessarily denote nitro radicals, and the cosmetically acceptable salts of the compounds containing a salifiable amine group, and also the process for preparing it and its use in dyeing keratinous fibres, and especially human hair.
本发明涉及一种式为##STR1##的化合物,其中:X表示含有2到6个碳原子的支链或直链烷基,可以选择性地用一个或多个羟基基团替代;R表示氢原子、烷基或单烷基或多羟基烷基基团或胺基烷基基团,其中胺基可以是单取代或双取代的烷基基团或单烷基或多羟基烷基基团,氮原子也可以成为杂环系统的一部分,烷基基团含有1到4个碳原子;R'表示氢原子或C.sub.1到C.sub.4烷基基团;Y和Z表示硝基和/或--NHR.sub.1基团,R.sub.1和R,可以相同也可以不同,具有上述R的含义,但是当Y和Z相同时,它们必须表示硝基基团;这些化合物的可接受的盐,以及制备该化合物的方法和其在染色角蛋白质纤维,尤其是人类头发方面的用途。