申请人:L'Oreal
公开号:US04865617A1
公开(公告)日:1989-09-12
The invention relates to a dyeing composition for keratinous fibres containing, in a cosmetically acceptable solvent medium, at least one para-type oxidation dye precursor in combination with at least one heterocyclic coupler of formula: ##STR1## in which R denotes a hydrogen atom, a C.sub.1 -C.sub.4 radical, a C.sub.2 -C.sub.4 hydroxyalkyl radical, a C.sub.3 to C.sub.6 polyhydroxyalkyl radical, or a C.sub.2 -C.sub.6 alkoxyalkyl radical, Z, independently of R, denotes a C.sub.1 to C.sub.4 alkyl radical, a C.sub.2 to C.sub.4 hydroxyalkyl radical, a C.sub.3 to C.sub.6 polyhydroxyalkyl radical, a C.sub.2 -C.sub.6 alkoxyalkyl radical or a trifluoroethyl radical, R.sub.1 and R.sub.2 independently of each other denote a hydrogen atom or a C.sub.1 to C.sub.4 alkyl radical, or one of the addition salts of the compound of formula (I) with an inorganic acid, a process for the oxidation dyeing of hair using this composition as well as the new couplers of formula (I) where Z is other than methyl when R.sub.1, R.sub.2 and R=H, the process for their preparation, the new intermediate compounds of formula: ##STR2## and the process for their preparation.
本发明涉及一种染色组合物,用于角蛋白纤维,包含至少一种对位氧化染料前体和至少一种杂环偶联剂的组合物,其中所述杂环偶联剂的化学式为:##STR1## 其中R表示氢原子,C.sub.1-C.sub.4基团,C.sub.2-C.sub.4羟基烷基基团,C.sub.3到C.sub.6多羟基烷基基团或C.sub.2-C.sub.6烷氧基烷基基团,Z独立于R,表示C.sub.1到C.sub.4烷基基团,C.sub.2到C.sub.4羟基烷基基团,C.sub.3到C.sub.6多羟基烷基基团,C.sub.2-C.sub.6烷氧基烷基基团或三氟乙基基团,R.sub.1和R.sub.2彼此独立地表示氢原子或C.sub.1到C.sub.4烷基基团,或化合物的配合物,该化合物为式(I)的过程,以及使用该组合物进行氧化染发的过程,以及其中Z不是甲基时的新偶联剂的化学式(I),其制备过程,式为:##STR2## 以及其制备过程。