A 2-alkyl-4-methoxy-5-aminophenol or a salt thereof; a 2-alkyl-4-methoxy-5-nitrophenol or 2-alkyl-4-methoxy-5-nitrophenyl mesylate, each an intermediate in the preparation of the 2-alkyl-4-methoxy-5-aminophenol; and a dyeing composition for keratin fibers comprising a color-developing material and the 2-alkyl-4-methoxy-5-aminophenyl or the salt thereof as a coupling agent are disclosed.
Further, a 2-alkyl-4-methoxy-5-substituted aminophenol or a salt thereof; a 2-alkyl-4-methoxy-5-substituted aminophenol derivative, which is an intermediate in the preparation of the 2-alkyl-4-methoxy-5-substituted aminophenol; and a dyeing composition for keratin fibers comprising a color-developing material and the 2-alkyl-4-methoxy-5-substituted aminophenol or the salt thereof as a coupling agent are disclosed.
本发明公开了一种 2-烷基-
4-甲氧基-5-
氨基苯酚或其盐;一种 2-烷基-
4-甲氧基-5-
硝基苯酚或 2-烷基-
4-甲氧基-5-硝基
苯甲磺酸盐,它们都是制备 2-烷基-
4-甲氧基-5-
氨基苯酚的
中间体;以及一种用于角质纤维的染色组合物,该组合物包含一种显色材料和作为
偶联剂的 2-烷基-
4-甲氧基-5-
氨基苯酚或其盐。
此外,还公开了一种 2-烷基-
4-甲氧基-5-取代
氨基苯酚或其盐;一种 2-烷基-
4-甲氧基-5-取代
氨基苯酚衍
生物,该衍
生物是制备 2-烷基-
4-甲氧基-5-取代
氨基苯酚的
中间体;以及一种角质纤维染色组合物,该组合物包含一种显色材料和作为
偶联剂的 2-烷基-
4-甲氧基-5-取代
氨基苯酚或其盐。