申请人:L'Oreal
公开号:US05145483A1
公开(公告)日:1992-09-08
5-Substituted ortho-aminophenols of formula: ##STR1## in which: R.sub.1 denotes a hydrogen atom, an alkyl radical having 1 to 4 carbon atoms or a hydroxyalkyl radical having 1 to 4 carbon atoms; and R.sub.2 denotes, independently of R.sub.1, an alkyl radical having 1 to 4 carbon atoms, an alkoxy radical having 1 to 4 carbon atoms or a benzyl radical; the addition salts with an acid and the phenates, and dyeing composition containing a compound of formula (I) or a salt or a phenate of such a compound. The 5-substituted ortho-aminophenols enable hair to be dyed in a rich spectrum of hues having good durability.
公式为:##STR1## 其中:R.sub.1代表氢原子,具有1至4个碳原子的烷基基团或具有1至4个碳原子的羟基烷基基团;R.sub.2独立于R.sub.1,代表具有1至4个碳原子的烷基基团,具有1至4个碳原子的烷氧基基团或苄基基团;与酸形成的盐和苯酚盐,以及含有公式(I)化合物或该化合物的盐或苯酚盐的染料组合物。这些5-取代的邻氨基酚使头发能够以丰富的色调染色,具有良好的耐久性。