申请人:Hans Schwarzkopf GmbH
公开号:US04575378A1
公开(公告)日:1986-03-11
The invention relates to new 3-nitro-4-aminophenols of the formula (I) ##STR1## in which R denotes hydrogen or halogen, preferably chlorine or bromine, and R' denotes hydrogen or alkyl, hydroxyalkyl, dihydroxyalkyl or halogenohydroxyalkyl which has 1 to 6 carbon atoms and is straight-chain or branched, with the proviso that, if R is hydrogen, R' does not denote hydrogen, methyl or .beta.-hydroxyethyl. Processes for their preparation: (a) by reacting corresponding 3-nitro-4-aminophenols with certain halogenoalkyl chloroformates and subsequent basic treatment of the process products, or (b) by reacting corresponding 4-halogeno-3-nitrophenols with certain amines, and the intermediate products obtained and coloring agents for keratinic fibres, preferably for human hair, which contain at least one compound of the formula (I).
该发明涉及新的3-硝基-4-氨基苯酚,化学式为(I)##STR1##其中R代表氢或卤素,优选氯或溴,R'代表氢或烷基,羟基烷基,二羟基烷基或卤代羟基烷基,其具有1至6个碳原子且直链或支链,但如果R为氢,则R'不代表氢,甲基或β-羟乙基。它们的制备方法:(a)通过将相应的3-硝基-4-氨基苯酚与特定的卤代烷基氯甲酸酯反应,并对反应产物进行碱性处理,或(b)通过将相应的4-卤代-3-硝基苯酚与某些胺类反应,以及所得到的中间产物和角蛋白纤维的染料,优选用于人类头发,其中包含至少一种化合物的化学式为(I)。