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    • 8. 发明授权
    • 2-nitroaniline derivatives and hair dyeing compositions containing same
    • 2-硝基苯胺衍生物和含有它们的染发组合物
    • US5037446A
    • 1991-08-06
    • US283311
    • 1988-12-12
    • Eugen KonradThomas ClausenHans-Jurgen BraunHerbert Mager
    • Eugen KonradThomas ClausenHans-Jurgen BraunHerbert Mager
    • A61K8/41A61Q5/06A61Q5/10
    • A61K8/418A61Q5/065A61Q5/10
    • The composition for dyeing hair yellow contains 2-nitroaniline derivatives of the general formula I: ##STR1## in which, R.sup.1 and R.sup.2 represent, independent of one another, hydrogen an alkyl of 1 to 4 carbon atoms, a monohydroxyallkyl of 2 to 4 carbon atoms or a dihydroxyalkyl of 3 or 4 carbon atoms, provided that R.sup.1 and R.sup.2 do not simultaneously represent alkyl groups of 1 to 4 carbon atoms, and X denotes an alkyl, monohydroxyalkyl, perfluoroalkyl or halogen. Also disclosed are new 2-nitroanitrile derivatives of the general formula II: ##STR2## in which R.sup.a and R.sup.b denote, independent of one another, ethyl, a monohydroxylalkyl of 2 to 4 carbon atoms or a dihydroxyalkyl of 3 or 4 carbon atoms, when Z is methyl, Cl or Br; or when Z is CH.sub.2 OH or a perfluoroalkyl, R.sup.a denotes hydrogen, a monohydroxyalkyl of 2 to 4 carbon atoms or a dihydroxyalkyl of 3 or 4 carbon atoms, and R.sup.b represents 2-hydroxyethyl or 2,3-dihydroxypropyl.
    • 用于染发黄黄色的组合物含有通式I的2-硝基苯胺衍生物:其中,R 1和R 2彼此独立地表示氢,具有1至4个碳原子的烷基,2个单羟基烷基 至4个碳原子或3或4个碳原子的二羟基烷基,条件是R 1和R 2不同时表示1至4个碳原子的烷基,X表示烷基,单羟基烷基,全氟烷基或卤素。 还公开了通式II的新的2-硝基腈衍生物:其中R a和R b彼此独立地表示乙基,2至4个碳原子的单羟基烷基或3或4个碳的二羟基烷基 当Z是甲基时,Cl或Br; 或当Z为CH 2 OH或全氟烷基时,R a表示氢,2至4个碳原子的一羟基烷基或3或4个碳原子的二羟基烷基,R b表示2-羟乙基或2,3-二羟丙基。