申请人:Wella Aktiengesellschaft
公开号:US04835314A1
公开(公告)日:1989-05-30
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 monohydroxyalkyl 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, for use as an agent in a hair dyeing composition. Also disclosed are new 2-nitroaniline 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.
通用式I的2-硝基苯胺衍生物:其中R.sup.1和R.sup.2分别表示独立的氢、1到4个碳原子的烷基、2到4个碳原子的单羟基烷基或3或4个碳原子的二羟基烷基,前提是R.sup.1和R.sup.2不同时表示1到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,用作染发组合物中的剂。还披露了通用式II的新2-硝基苯胺衍生物:其中R.sup.a和R.sup.b分别表示独立的乙基、2到4个碳原子的单羟基烷基或3或4个碳原子的二羟基烷基,当Z为甲基、氯或溴时;或当Z为CH.sub.2 OH或全氟烷基时,R.sup.a表示氢、2到4个碳原子的单羟基烷基或3或4个碳原子的二羟基烷基,R.sup.b表示2-羟乙基或2,3-二羟基丙基。