申请人:Wella Aktiengesellschaft
公开号:US04845294A1
公开(公告)日:1989-07-04
Tetrafluoroethoxybenzenes, and their acid addition salts, of the general formula: ##STR1## in which R.sup.1 may represent hydrogen or an alkyl having from 1 to 4 carbon atoms and R.sup.2, R.sup.3 and R.sup.4 represent one or more of the same or different substituents selected from hydrogen, an alkyl having 1 to 4 carbon atoms or mono- or dihydroxylalkyls having 1 to 4 carbon atoms, provided that the amino groups are situated relative to one another in an ortho- or meta- position and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 do not simultaneously represent hydrogen when the amino groups are arranged in a 2,4- position. The compounds of the invention, along with 2,4-diaminotetrafluoroethoxybenzene, are useful as coupler components in oxidative hair coloring agents. A process for making the compounds, as well as a separate process for making the mono-N-.beta.-hydroxylethyl compounds, is provided.
氟乙氧基苯乙烷及其酸盐,通式如下:其中R.sup.1可能代表氢或含有1至4个碳原子的烷基,R.sup.2、R.sup.3和R.sup.4代表一个或多个相同或不同的取代基,选自氢、含有1至4个碳原子的烷基或含有1至4个碳原子的单或双羟基烷基,前提是氨基相对于彼此位于邻位或间位,当氨基排列在2,4-位置时,R.sup.1、R.sup.2、R.sup.3和R.sup.4不能同时代表氢。该发明的化合物以及2,4-二氨基氟乙氧基苯是氧化染发剂中有用的偶联剂成分。提供了制备该化合物的方法,以及制备单N-β-羟乙基化合物的单独方法。