摘要:
##STR1## By dehydrating indolines or their salts, the corresponding indoles having formula (I) are obtained. In the formula, R 1 and R 3 represent independently from each other hydrogen or alkyl groups with 1 to 4 C atoms, R 2 stands for hydrogen, a methyl or a carboxyl group, R 4 and R 5 represent independently from each other hydrogen, amino groups, hydroxy groups, alkyl groups with 1 to 4 C atoms or alkoxy groups with 1 to 4 C atoms, or, in case R 4 and R 5 are bound to adjacent C atoms, both residues may also represent together an alkylene dioxy group with 1 to 4 C atoms. This process allows high yields of very pure indoles to be produced.
摘要:
1,3-disubstitued nitrobenzenes of the general formula I: ##STR1## in which X is a hydroxyl group or an amino group and R.sup.1 is hydrogen or a C.sub.1-4 alkyl group and their salts are suitable for use as an oxidation dye precursor of the coupler type, together with prior art primary intermediate components, for the production of oxidation dyes, preferably for the production of hair colorants. With developers of the p-phenylenediamine, p-aminophenol, 2.5-diaminopyridine, and 2,4,5,6-tetraaminopyrimidine types, primarily brown hues with great light stability are formed.
摘要:
The invention relates to the use of compounds corresponding to formula (I) ##STR1## in which one of the substituents R.sup.1 or R.sup.2 is a nitro group while the other is hydrogen, halogen, an amino group, a mono- or dialkylamino group containing C.sub.1-4 alkyl groups, a C.sub.1-4 alkyl or alkoxy group, R.sup.3 and R.sup.4 independently of one another represent hydrogen or a C.sub.1-4 alkyl group, A is a >CHR.sup.6 - or a >C.dbd.O- group, where R.sup.6 is hydrogen or a C.sub.1-4 alkyl group, and R.sup.5 is hydrogen or a C.sub.1-4 alkyl group, or salts thereof as substantive dyes in hair-dyeing compositions.When the substituent groups in formula I represent one of the combinations I-IV shown in the table below, the compounds are novel and are useful in hair-dyeing compositions.______________________________________ R.sup.1 R.sup.2 R.sup.3 R.sup.4 R.sup.5 A ______________________________________ I: H NO.sub.2 H CH.sub.3 H CH.sub.2 II: H NO.sub.2 CH.sub.3 CH.sub.3 H CH.sub.2 III: NH.sub.2 NO.sub.2 H H H CH.sub.2 IV: H NO.sub.2 H H CH.sub.3 CH.sub.2. ______________________________________
摘要:
This invention encompasses compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 independently are hydrogen, C.sub.1-4 alkyl, or C.sub.2-4 hydroxyalkyl; one of R.sup.3 to R.sup.7 is --SO.sub.3 H or --COOH; and the remaining of R.sup.3 to R.sup.7 independently are hydrogen, chlorine, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, or --NR.sup.8 R.sup.9, where R.sup.8 and R.sup.9 independently are hydrogen, C.sub.1-4 alkyl, C.sub.2-4 alkoxy, or where --NR.sup.8 R.sup.9 is piperidine, morpholine, piperazine, or pyrrolidone; or a water soluble salt thereof; hair dye preparation containing these compounds, and methods for dyeing hair using such preparation.
摘要翻译:本发明包括式(I)的化合物,其中R 1和R 2独立地是氢,C 1-4烷基或C 2-4羟基烷基; R 3至R 7中的一个为-SO 3 H或-COOH; 其余的R 3至R 7独立地为氢,氯,C 1-4烷基,C 1-4烷氧基或-NR 8 R 9,其中R 8和R 9独立地为氢,C 1-4烷基,C 2-4烷氧基,或其中-NR 8 R 9为 哌啶,吗啉,哌嗪或吡咯烷酮; 或其水溶性盐; 含有这些化合物的染发剂,以及使用这种制剂染发毛发的方法。
摘要:
Novel substituted nitrodiphenylamines and substantive hair dye preparations containing them or containing nitrodiphenylamines with different substituents. The dyes result in yellow to orange-red colored shades of high intensity and fastness and are more soluble in water than known nitroaniline dyes.
摘要:
This invention is directed to compositions of the developer-coupler type of the dyeing of hair consisting essentially of bis-(2,4-diaminophenyl)-alkanes or salts thereof as coupling components and, as developer components, the conventional components used in oxidation dyes.
摘要:
The present invention is directed to oxidation hair dyes of the developer-coupler type where the coupler component is a 5-halo-2,3-pyridine-diol and the developer component is selected from conventional developers used in hair dyeing.
摘要:
2,4-Dichloro-3-alkylidene-aminophenols having the formula: ##STR1## wherein R.sub.1 represents hydrogen or an alkyl radical having 1 to 6 carbon atoms and R.sub.2 represents an alkyl radical having 1 to 6 carbon atoms or an aryl radical, with the proviso that R.sub.2 can only be an aryl radical when R.sub.1 is hydrogen.The 2,4-dichloro-alkylidene-aminophenols can be produced by reaction of 2,4-dichloro-3-aminophenol with the corresponding aldehydes or ketones. They are suitable as such, or in the form of their salts with inorganic or organic acids, as coupler components in oxidation hair dyes.
摘要:
Oxidizable developer-coupler combinations wherein the coupler is a water-soluble polyhalogen 3-aminophenol are stable in the absence of free oxygen and chemical oxidizing agents. They provide hair dyeings of specially desirable shades. The dyeings are color fast, wash-fast, thermostable, and non-toxic. The combinations can be applied in customary vehicles. Their dyeing properties are developed by air oxidation, by peroxides, or by both at an acid, neutral or alkaline pH.
摘要:
An aqueous hair dye preparation comprising an oxidation dyestuff combination of a coupling component and a developer component consisting of a tetraaminopyrimidine derivative or a water-soluble acid addition salt thereof, as well as a process for dyeing hair by utilizing this oxidation dyestuff combination.