申请人:——
公开号:US20010052156A1
公开(公告)日:2001-12-20
A colorant for coloring keratin fibers wherein the colorant contains a substantive dye which is a 4-nitroaniline derivative corresponding to formula (I):
1
in which R
1
, R
2
, R
3
and R
4
independently of one another represent a hydrogen atom, an alkyl, hydroxyalkyl, alkoxyalkyl, carbamyl alkyl, mesylaminoalkyl, acetylaminoalkyl, ureidoalkyl, carbalkoxyaminoalkyl, sulfalkyl, piperidinoalkyl, morpholinoalkyl or phenyl radical optionally substituted by an amino group in the para position, the alkyl or alkoxy groups containing 1 to 4 carbon atoms, with the proviso that the four substituents R
1
, R
2
, R
3
and R
4
do not simultaneously represent hydrogen, and the groups —NR
1
R
2
and —NR
3
R
4
may also represent an aziridine, acetidine, pyrrolidine, piperidine, azepan, azocine, morpholine, thiomorpholine or piperazine ring which may also bear another substituent R
8
at the nitrogen atom, R
8
being a hydrogen atom, a (C
1-4
)-alkyl, hydroxy-(C
2-3
)-alkyl, (C
1-4
)-alkoxy-(C
2-3
)-alkyl, amino-(C
2-3
)-alkyl or 2,3-dihydroxypropyl group, and R
5
, R
6
and R
7
independently of one another represent ahydrogen atom, a halogen atom, a (C
1-4
)-alkyl, (C
1-4
)-alkoxy, carboxy, sulfo or (C
2-4
)-hydroxyalkyl group, or a physiologically compatible salt of the compounds with an inorganic or organic acid.
一种用于给角蛋白纤维着色的着色剂,其中该着色剂含有一种实质性染料,该染料是与式(I)相对应的4-硝基苯胺衍生物,式中R1、R2、R3和R4分别独立地代表氢原子、烷基、羟基烷基、烷氧基烷基、氨基甲酰基烷基、甲磺基氨基烷基、乙酰氨基烷基、脲基烷基、羰基氨基烷基、磺基烷基、哌啶基烷基、吗啉基烷基或苯基基团,该苯基基团在对位可能被氨基取代,烷基或烷氧基基团含有1至4个碳原子,但R1、R2、R3和R4的四个取代基不能同时代表氢,而基团—NR1R2和—NR3R4也可以表示一个氮杂环丙烷、乙酸丙烷、吡咯烷、哌啶、氮丙烷、氮环己烷、吗啉、硫吗啉或哌嗪环,该环也可以在氮原子处带有另一个取代基R8,R8为氢原子、(C1-4)-烷基、羟基-(C2-3)-烷基、(C1-4)-烷氧基-(C2-3)-烷基、氨基-(C2-3)-烷基或2,3-二羟基丙基基团,而R5、R6和R7分别独立地代表氢原子、卤原子、(C1-4)-烷基、(C1-4)-烷氧基、羧基、磺酸基或(C2-4)-羟基烷基,或者是与无机或有机酸形成的生理相容盐。