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EP1748755A1 - Constituants copulants m-phenylenediamine - Google Patents

Constituants copulants m-phenylenediamine

Info

Publication number
EP1748755A1
EP1748755A1 EP05774856A EP05774856A EP1748755A1 EP 1748755 A1 EP1748755 A1 EP 1748755A1 EP 05774856 A EP05774856 A EP 05774856A EP 05774856 A EP05774856 A EP 05774856A EP 1748755 A1 EP1748755 A1 EP 1748755A1
Authority
EP
European Patent Office
Prior art keywords
amino
alkyl
phenylenediamine
hydrogen
general formula
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP05774856A
Other languages
German (de)
English (en)
Inventor
Georg KNÜBEL
Horst Höffkes
Ralf Nemitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP1748755A1 publication Critical patent/EP1748755A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/41—Amines
    • A61K8/411—Aromatic amines, i.e. where the amino group is directly linked to the aromatic nucleus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/10—Preparations for permanently dyeing the hair
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C215/00—Compounds containing amino and hydroxy groups bound to the same carbon skeleton
    • C07C215/02—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C215/04—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated
    • C07C215/06—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated and acyclic
    • C07C215/16—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated and acyclic the nitrogen atom of the amino group being further bound to carbon atoms of six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
    • C07D263/08—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D263/16—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D263/18—Oxygen atoms
    • C07D263/20—Oxygen atoms attached in position 2
    • C07D263/24—Oxygen atoms attached in position 2 with hydrocarbon radicals, substituted by oxygen atoms, attached to other ring carbon atoms

Definitions

  • the present invention relates to agents for dyeing keratin fibers which contain special m-phenylenediamine derivatives, a process for dyeing hair with these agents, and to these m-phenylenediamine derivatives themselves and intermediates which are formed in the preparation of these compounds.
  • oxidation coloring agents play a preferred role because of their intense colors and good fastness properties.
  • colorants contain oxidation dye precursors, so-called developer components and
  • the developer components form the actual dyes under the influence of oxidizing agents or of atmospheric oxygen with one another or under coupling with one or more coupler components.
  • M-Phenylenediamine derivatives, naphthols, resorcinol and resorcinol derivatives, pyrazolones and m-aminophenols are generally used as coupler components.
  • 4-alkyl and 2-alkyl-substituted 1,3-phenylenediamines have long been known as coupling components in oxidative hair colors.
  • 2,4-diaminotoluene has been used for many years in the past, for example, as a blue coupler for p-phenylenediamine and p-toluenediamine.
  • substituted systems have also been developed on the N atoms and the methyl group of these basic structures.
  • Good oxidation dye precursors should form the desired color shades in sufficient intensity and fastness in the oxidative coupling. They should also have a good ability to draw onto the fiber, with no noticeable differences between stressed and freshly regrown hair, in particular with human hair (leveling ability). They should be resistant to light, heat, sweat, friction and the influence of chemical reducing agents, e.g. Perm liquids. After all, if they are used as hair dye, they should not stain the scalp too much, and above all they should be harmless from a toxicological and dermatological point of view. Furthermore, the coloring achieved should be easily removed from the hair again by bleaching, if it does not correspond to the individual wishes of the individual and is to be reversed.
  • the object of the present invention was therefore to develop new coupler components which also meet the requirements placed on oxidation dye precursors in terms of toxicological and dermatological properties, and enable dyeing in a wide range of colors with good fastness properties.
  • the invention therefore firstly relates to agents for dyeing keratin fibers, in particular human hair, containing at least one m-phenylenediamine derivative of the general formula (I) as a coupler component in a cosmetically acceptable carrier.
  • R ', R 2 , R 3 R 4 independently of one another H, -C -0 -alkyl, C 2 . 6 -hydroxyalkyl, C 2 . 6 alkoxyalkyl, C 2-6 aminoalkyl, C ⁇ o-alkylaminoalkyl, dialkylaminoalkyl C 4- 12, with the proviso that at least one of the radicals R 1, R 2, R 3, R 4 is different from H,
  • R 5 , R 6 independently of one another H, C 1-6 alkyl, -C. 6 -hydroxyalkyl, C 2 . 6 -alkoxyalkyl, where one of the radicals R 5 , R 6 -OH, C 1-6 -alkoxy, - NH2, -NHR, -NR 2 with R in each case independently of one another may optionally also be OH-substituted C -4 alkyl, or salts thereof.
  • Keratinic fibers are to be understood according to the invention to mean furs, wool, feathers and in particular human hair.
  • the oxidation colorants according to the invention are primarily suitable for dyeing keratin fibers, there is in principle nothing to prevent them from being used in other areas, particularly in color photography.
  • the known acid addition salts can be prepared from them in the usual way.
  • the invention therefore relates both to the compounds present in free form and to their water-soluble, physiologically tolerable salts.
  • such salts are the hydrochlorides, the hydrobromides, the sulfates, the phosphates, the acetates, the propionates, the citrates and the lactates.
  • the hydrochlorides and the sulfates are particularly preferred.
  • Examples of the C 1 -C 6 -alkyl groups, preferably C 1 -C 4 -alkyl groups mentioned as substituents in the compounds according to the invention, which may be linear or branched, are the groups methyl, ethyl, propyl, isopropyl, butyl, pentyl and hexyl , Ethyl and methyl are preferred alkyl groups.
  • a 2-hydroxyethyl, a 3-hydroxypropyl or a 4-hydroxybutyl group can be mentioned as preferred C 2 - to C 6 - (mono) hydroxyalkyl group.
  • a 2-hydroxyethyl group is particularly preferred.
  • C -6- Alkoxyalklyreste have a total of 2 to 6 carbon atoms, which are distributed over the alkoxy and the alkyl radical. Up to 5 carbon atoms can thus be present in the alkoxy or alk l radical. It is preferably a C 1-3 alkoxy-C 1-3 alkyl radical, particularly preferably C 1. 2 -alkoxy-C ⁇ - 2 alkyl radical. Both the alkoxy and the alkyl radical can be linear or branched. They are preferably linear. C 2-6 aminoalkyl residues, preferably C 2-4 aminoalkyl residues, C3.
  • 10 -alkylaminoalkyl radicals preferably C 2-6 -alkylaminoalkyl radicals and C 4- ⁇ 2 -dialkylaminoalkyl radicals, preferably C 3 .
  • 9 -Dialkylaminoalkyl radicals can each have linear or branched alkyl radicals.
  • Each individual alkyl group preferably has 1 to 3 carbon atoms.
  • the alkyl radicals present in the respective groups are preferably defined as above for the pure alkyl radicals.
  • An m-phenylenediamine derivative of the general formula (I) particularly preferably has a maximum of four OH groups, preferably a maximum of two OH groups.
  • the m-phenylenediamine derivative of the general formula (I) preferably contains a maximum of four nitrogen atoms, particularly preferably two nitrogen atoms. In total, apart from the hydroxyl groups, there are a maximum of four further oxygen atoms in the m-phenylenediamine derivative of the general formula (I), preferably a maximum of a further two oxygen atoms, in particular no further oxygen atoms.
  • R 1 , R 2 , R 3 , R 4 are independently hydrogen, Cj -4 -alkyl or C 2-4 -HydiOxyalkyl.
  • R 1 and R 3 are particularly preferably hydrogen and R 2 and R 4 are hydrogen or C 2-4 -hydroxyalkyl.
  • R 1 and R 3 are particularly preferably hydrogen and R 2 and R 4 are -CH 2 CH 2 OH.
  • R 5 and R 6 independently of one another are hydrogen, C -4 alkyl or C -4 hydroxyalkyl.
  • R 5 is particularly preferably hydrogen and R is methyl.
  • R 1 , R 3 , R 5 , R 6 are hydrogen and R 2 , R 4 -CH 2 -CH 2 OH.
  • the agent according to the invention can contain one or more, for example at least two different m-phenylenediamine derivatives of the general formula (I).
  • the m-phenylenediamine derivatives of the formula (I) can be prepared using conventional organic methods. As an example, reference is made to the experimental procedures in the context of the exemplary embodiments.
  • the agents for dyeing keratin fibers according to the invention preferably contain the at least one m-phenylenediamine derivative of the general formula (I) in an amount of 0.001 to 15% by weight, particularly preferably 0.05 to 5% by weight, based on the finished agent ,
  • the agent for dyeing keratin fibers can be selected from any suitable agents which are particularly suitable for dyeing human hair.
  • an otherwise customary carrier of agents for coloring human hair is used as the cosmetically acceptable carrier.
  • the colorants according to the invention can, apart from the m-phenylenediamine derivatives of the general formula (I), be composed of known colorants or contain the usual ingredients for them. Examples of other suitable ingredients preferred according to the invention are given below.
  • Agents according to the invention can have the following ingredients in the amounts indicated.
  • Suitable colorant compositions are described, for example, in DE-U 1-299 11 819, DE-A-101 25 451, DE-Ul-201 11 036, Cosmetics, ed. W. Umbach, 2nd ed. 1995, G. Thieme Verlag Stuttgart, New York.
  • the colorants according to the invention can also contain at least one developer component.
  • P-Phenylenediamine derivatives of the formula (E1) are particularly preferred
  • G 1 represents a hydrogen atom, a d- to C 4 - alkyl radical, a C ⁇ - to C 4 - monohydroxyalkyl radical, a C 2 - to C 4 polyhydroxyalkyl radical, a (C ⁇ - to C) - alkoxy- (C ⁇ - to C 4 ) -alkyl radical, a 4'-aminophenyl radical or a C 1 -C 4 -alkyl radical which is substituted by a nitrogen-containing group, a phenyl or a 4'-aminophenyl radical;
  • G 2 represents a hydrogen atom, a C 1 -C 4 -alkyl radical, a - C 4 - monohydroxyalkyl radical, a C 2 - C 4 polyhydroxyalkyl radical, a (C 1 -C 4 ) - Alkoxy- (C ⁇ - to C 4 ) alkyl radical or a C ⁇ - to C 4 - alkyl
  • Examples of the C 1 -C 4 -alkyl radicals mentioned as substituents in the compounds are the groups methyl, ethyl, propyl, isopropyl and butyl. Ethyl and methyl are preferred alkyl radicals.
  • Preferred C to C 4 alkoxy radicals are, for example, a methoxy or an ethoxy group.
  • Further preferred examples of a C 1 -C 4 -hydroxyalkyl group are a hydroxymethyl, a 2-hydroxyethyl, a 3-hydroxypropyl or a 4-hydroxybutyl group.
  • a 2-hydroxyethyl group is particularly preferred.
  • a particularly preferred C - to C 4 - polyhydroxyalkyl group is the 1,2-dihydroxyethyl group.
  • halogen atoms are F, CI or Br atoms, Cl atoms are very particularly preferred.
  • the other terms used are derived from the definitions given here.
  • nitrogen-containing groups of formula (El) are especially the amino groups, monoalkylamino groups CJ to C, C ⁇ - to C 4 dialkylamino, CJ to C 4 - trialkylammonium, CJ to C 4 -Monohydroxyalkylammo phenomenon, imidazolinium and ammonium.
  • Particularly preferred p-phenylenediamines of the formula (E1) are selected from p-phenylenediamine, p-toluenediamine, 2-chloro-p-phenylenediamine, 2,3-dimethyl-p-phenylenediamine, 2,6-dimethyl-p-phenylenediamine, 2 , 6-diethyl-p-phenylenediamine, 2,5-dimethyl-p-phenylenediamine, N, N-dimethyl-p-phenylenediamine, N, N-diethyl-p-phenylenediamine, N, N ⁇ dipropyl-p-phenylenediamine, 4 -Amino-3-methyl- (N, N-diethyl) aniline, N, N-bis (ß-hydroxyethyl) -p-phenylenediamine, 4-N, N-bis- (ß-hydroxyethyl) -amino- 2-methylaniline, 4-N,
  • P-Phenylenediamine derivatives of the formula (E1) which are very particularly preferably used according to the invention are p-phenylenediamine, p-toluenediamine, 2- ( ⁇ -hydroxyethyl) -p-phenylenediamine, 2- ( ⁇ , ⁇ -dihydroxyethyl) -p-phenylenediamine, N- (4-Amino-3-methylphenyl) -N- [3- (1H-imidazol-l-yl) propyl] amine, where phenyl or C 1-6 -alkylphenyl can also generally be present instead of 3-methylphenyl and N, N -Bis- (ß-hydroxyethyl) -p-phenylenediamine.
  • developer component compounds which contain at least two aromatic nuclei which are substituted by amino and / or hydroxyl groups.
  • binuclear developer components which can be used in the coloring compositions according to the invention, one can name in particular the compounds which correspond to the following formula (E2) and their physiologically tolerable salts:
  • Z 1 and Z 2 independently of one another represent a hydroxyl or NH 2 radical, which is optionally substituted by a Cp to C 4 alkyl radical, by a Cj to C - hydroxyalkyl radical and / or by a bridge Y or the is optionally part of a bridging ring system
  • the bridging Y represents an alkylene group having 1 to 14 carbon atoms, such as, for example, a linear or branched alkylene chain or an alkylene ring, which is composed of one or more nitrogen-containing groups and / or one or more heteroatoms such as oxygen or sulfur - Or nitrogen atoms can be interrupted or terminated and possibly substituted by one or more hydroxyl or Cj to C 8 alkoxy radicals, or a direct one.
  • Binding, G 5 and G 6 independently represent a hydrogen or halogen atom, a Cj to C 4 alkyl radical, a Cp to C 4 monohydroxyalkyl radical, a C 2 to C 4 polyhydroxyalkyl radical, a Ci to C 4 Aminoalkyl radical or a direct connection to the bridge Y, G 7 , G 8 , G 9 , G 10 , G 11 and G 12 independently of one another represent a hydrogen atom, a direct bond to the bridge Y or a C 1 -C 4 -alkyl radical, with the provisos that the compounds of the formula (E2) contain only one bridge Y per molecule and the compounds of the formula (E2) contain at least one amino group which carries at least one hydrogen atom.
  • the substituents used in formula (E2) are defined analogously to the above statements.
  • Preferred dinuclear developer components of the formula (E2) are in particular: N, N'-bis ( ⁇ -hydroxyethyl) -N, N'-bis (4'-aminophenyl) -1,3-diamino-propan-2-ol, N, N'-bis ( ⁇ -hydroxyethyl) -N, N'-bis (4'-aminophenyl) ethylenediamine, N, N'-bis (4-aminophenyl) tetramethylene diamine, N, N'-bis - (ß-hydroxyethyl) -N, N'-bis- (4-aminophenyl) tetramethylene diamine, N, N'-bis (4-methyl-aminophenyl) tetramethylene diamine, N, N'-diethyl-N, N ' -bis- (4'-amino-3'-methylphenyl) ethylenediamine, bis (2-hydroxy-5-aminophenyl)
  • Very particularly preferred dinuclear developer components of the formula (E2) are N, N'-bis- ( ⁇ -hydroxyethyl) -N, N'-bis- (4'-aminophenyl) -1,3-diamino-propan-2-ol, Bis (2-hydroxy-5-aminophenyl) methane, 1,3-bis (2,5-diaminophenoxy) propan-2-ol, N, N'-bis (4'-aminophenyl) -1, 4-diazacycloheptane and 1, 10-bis (2 ', 5'-diaminophenyl) - 1, 4,7, 10-tetraoxadecane or one of their physiologically tolerable salts.
  • P-Aminophenol derivatives of the formula (E3) are particularly preferred
  • G 13 represents a hydrogen atom, a halogen atom, a C 1 -C 4 -alkyl radical, a C 1 -C 4 monohydroxyalkyl radical 5, a C 2 -C 4 polyhydroxyalkyl radical, a (C 1 -C 4 ) alkoxy - (C 1 -C 4 ) -alkyl radical, a C 1 -C 4 -aminoalkyl radical, a hydroxy- (C] - to C 4 ) -alkylamino radical, a C 1 -C 4 -hydroxyalkoxy radical, a C 1 -C 4 -hydroxyalkyl- (Crbis C 4 ) -aminoalkyl radical or a (di-Cp to C 4 -alkylamino) - (C!
  • G 14 represents a hydrogen or halogen atom, a C to C 4 alkyl group, a d to C 4 monohydroxyalkyl group, a C 2 to C polyhydroxyalkyl group, a (Ci to C 4 ) alkoxy (C 1 to C 4 ) alkyl group, a Cj to C 4 aminoalkyl or a Ci to C 4 cyanoalkyl group, G 15 represents hydrogen, a C to C 4 alkyl group, a Cr to C 4 monohydroxyalkyl group, a C to C 4 polyhydroxyalkyl group, a phenyl group or one Benzyl radical, and G 16 represents hydrogen or a halogen atom.
  • Preferred p-aminophenols of the formula (E3) are in particular p-aminophenol, N-methyl-p-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 2-hydroxymethylamino-4-aminophenol, 4 -Amino-3-hydroxymethylphenol, 4-amino-2- (ß-hydroxyethoxy) phenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethyl-phenol, 4-amino -2-aminomethylphenol, 4-amino-2- (ß-hydroxyethyl-aminomethyl) phenol, 4-amino-2- ( ⁇ , ß-dihydroxyethyl) -phenol, 4-amino-2-fluorophenol, 4-amino-2 -chlorophenol, 4-amino-2,6-dichlorophenol, 4-amino-2- (diethylaminomethyl) phenol and their physiologically tolerable salt
  • Very particularly preferred compounds of the formula (E3) are p-aminophenol, 4-amino-3-methylphenol, 4-amino-2-aminomethylphenol, 4-amino-2- ( ⁇ , ⁇ -dihydroxyethyl) phenol and 4-amino- 2- (diethylaminomethyl) -phenol.
  • the developer component can also be selected from o-aminophenol and its derivatives, such as, for example, 2-amino-4-methylphenol, 2-amino-5-methylphenol or 2-amino-4-chlorophenol.
  • the developer component can be selected from heterocyclic developer components, such as, for example, the pyridine, pyrimidine, pyrazole, pyrazole-pyrimidine derivatives and their physiologically tolerable salts.
  • Preferred pyridine derivatives are in particular the compounds described in the patents GB 1 026 978 and GB 1 153 196, such as 2,5-diamino-pyridine, 2- (4'-methoxyphenyl) -amino-3-ammo-pyridine , 2,3-diamino-6-methoxy-pyridine, 2- ( ⁇ -methoxyethyl) amino-3-amino-6-methoxy-pyridine and 3,4-diamino-pyridine.
  • Preferred pyrimidine derivatives are, in particular, the compounds described in German patent DE 2 359 399, Japanese laid-open patent publication JP 02019576 A2 or in laid-open publication WO 96/15765, such as 2,4,5,6-tetraaminopyrimidine, 4-hydroxy- 2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2-dimethylamino-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine and 2,5,6- triaminopyrimidine.
  • Preferred pyrazole derivatives are in particular the compounds described in the patents DE 3 843 892, DE 4 133 957 and patent applications WO 94/08969, WO 94/08970, EP-740 931 and DE 195 43 988, such as 4.5 -Diamino-l-methylpyrazole, 4,5-diamino-1 - (ß-hydroxyethyl) -pyrazole, 3,4-diaminopyrazole, 4,5-diamino-1 - (4-chlorobenzyl) -pyrazole, 4,5-diamino -l, 3-dimethylpyrazole, 4,5-diamino-3-methyl-l-phenylpyrazole, 4,5-diamino-l-methyl-3-phenylpyrazole, 4-amino-l, 3-dimethyl-5-hydrazinopyrazole, l -Benzyl-4,5-diamino ⁇ 3-methylpyrazole, 4,5
  • Preferred pyrazole-pyrimidine derivatives are, in particular, the derivatives of pyrazole- [1,5-a] -pyrimidine of the following formula (E4) and its tautomeric forms, provided there is a tautomeric equilibrium:
  • G 17 , G 18 , G 19 and G 20 independently represent a hydrogen atom, a C 1 -C 4 -alkyl radical, an aryl radical, a Cr to C 4 -hydroxyalkyl radical, a C 2 - to C 4 - Polyhydroxyalkyl radical a (Cr to C 4 ) alkoxy- (C] - to C 4 ) - alkyl radical, a Cj to C 4 - aminoalkyl radical, which can optionally be protected by an acetyl-ureide or a sulfonyl radical, a ( Cr to C 4 ) -alkylamino- (Cr to C 4 ) -alkyl radical, a di - [(Cr to C 4 ) -alkyl] - (Cr to C 4 ) -aminoalkyl radical, the dialkyl radicals optionally having a carbon cycle or a Form a heterocycle with 5 or 6 chain links, a Cr to C 4
  • pyrazole- [1,5-a] pyrimidines of the above formula (E4) one can mention in particular: pyrazole- [1,5-a] pyrimidine-3,7-diamine; 2,5-dimethylpyrazole- [1,5-a] pyrimidine-3,7-diamine; Pyrazole [l, 5-a] pyrimidine-3,5-diamine; 2,7-dimethylpyrazole- [1,5-a] pyrimidine-3,5-diamine; 3 - aminopyrazole- [1,5-a] pyrimidin-7-ol; 3-aminopyrazole [1,5-a] pyrimidin-5-ol; 2- (3-aminopyrazole- [1,5-a] pyrimidin-7-ylamino) ethanol; 2- (7-aminopyrazole- [1,5-a] pyrimidin-3-ylamino) ethanol; 2 - [(3-aminopyrazole [l,
  • pyrazole [1,5-a] pyrimidines of the above formula (E4) can be prepared as described in the literature by cyclization starting from an aminopyrazole or from hydrazine.
  • the colorants according to the invention contain at least one further coupler component.
  • M-Phenylenediamine derivatives, naphthols, resorcinol and resorcinol derivatives, pyrazolones and m-aminophenol derivatives are generally used as coupler components.
  • Suitable coupler substances are, in particular, 1-naphthol, 1,5-, 2,7- and 1,7-dihydroxynaphthalene, 5-amino-2-methylphenol, m-aminophenol, resorcinol, resorcinomino methyl ether, m-phenylenediamine, l-phenyl -3-methyl-pyrazolon-5, 2,4-dichloro-3-aminophenol, 1,3-bis- (2 ', 4'-diaminophenoxy) propane, 2-chloro-resorcinol, 4-chloro-resorcinol, 2 -Chlor-6-methyl-3-aminophenol, 2-amino-3-hydroxypyridine, 2-methylresorcinol, 5-methylre
  • Further coupler components preferred according to the invention are - m-aminophenol. and its derivatives such as 5-amino-2-methylphenol, N-cyclopentyl-3-aminophenol, 3-amino-2-chloro-6-methylphenol, 2-hydroxy-4-aminophenoxyethanol, 2,6-diethyl-3- aminophenol, 3-trifluoroacetyIamino-2-chloro-6-methylphenol, 5-amino-4-chloro-2-methylphenol, 5-amino-4-methoxy-2-methylphenol, 5- (2'-hydroxyethyl) amino-2 - methylphenol, 3- (diethylamino) phenol, N-cyclopentyl-3-aminophenol, 1,3-dihydroxy-5- (methylamino) benzene, 3-ethylamino-4-methylphenol and 2,4-dichloro-3-aminophenol , - o-aminophenol and its derivatives, - m-diaminobenzene and
  • Naphthalene derivatives such as 1-naphthol, 2-methyl-l-naphthol, 2-hydroxymethyl-1-naphthol, 2-hydroxyethyl-l-naphthol, 1,5-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 1,8-dihydroxynaphthalene, 2,7-dihydroxynaphthalene and 2,3-dihydroxynaphthalene, morpholine derivatives such as 6-hydroxybenzomorpholine and 6-amino benzomorpholine, quinoxaline derivatives such as 6-methyl-l, 2,3,4-tetrahydroquinoxaline, pyrazole derivatives such as for example l-phenyl-3-methylpyrazol-5-one,
  • Indole derivatives such as 4-hydroxyindole, 6-hydroxyindole and 7-hydroxyindole, pyrimidine derivatives such as 4,6-diaminopyrimidine, 4-amino-2,6-dihydroxypyrimidine, 2,4-diamino-6-hydroxypyrimidine, 2,4, 6-trihydroxypyrimidine, 2-amino-4-methylpyrimidine, 2-amino-4-hydroxy-6-methylpyrimidine and 4,6-dihydroxy-2-methylpyrimidine, or
  • Methylenedioxybenzene derivatives such as l-hydroxy-3,4-methylenedioxybenzene, l-amino-3,4-methylenedioxybenzene and l- (2'-hydroxyethyl) amino-3,4-methylenedioxybenzene.
  • Coupler components which are particularly preferred according to the invention are 1-naphthol, 1,5-, 2,7- and 1,7-dihydroxynaphthalene, 3-aminophenol, 5-amino-2-methylphenol, 2-amino-3-hydroxypyridine, resorcinol, 4- Chlororesorcinol, 2-chloro-6-methyl-3-aminophenol, 2-methylresorcinol, 5-methylresorcinol, 2,5-dimethylresorcinol and 2,6-dihydroxy-3,4-dimethylpyridine and 2 - ( ⁇ 3- [2-hydroxyethyl ) amino] -2-methoxy-5-methylphenyl ⁇ amino) ethanol, 2 - ( ⁇ 3 - [(2-hydroxyethyl) amino] -4-methoxy-5-methylphenyl ⁇ amino) ethanol and 2- [ (3-morpholin-4-ylphenyl) amino] ethanol.
  • the colorants can contain at least one precursor of a nature-analog dye.
  • These groups can carry further substituents, e.g. B. in the form of etherification or esterification of the hydroxy group or an alkylation of the amino group.
  • the colorants contain at least one indole and / or indoline derivative.
  • Derivatives of 5,6-dihydroxyindoline of the formula (Ha) are particularly suitable as precursors of nature-analogous hair dyes,
  • R 1 stands for hydrogen, a C 1 -C 4 -alkyl group or a C 1 -C 4 -hydroxy-alkyl group
  • - R 2 stands for hydrogen or a -COOH group
  • the -COOH group also can be present as a salt with a physiologically compatible cation
  • - R 3 stands for hydrogen or a dC 4 -alkyl group
  • R 4 stands for hydrogen, a CrC 4 -alkyl group or a group -CO-R 6 , in which R 6 stands for a C 1 -C 4 alkyl group
  • R 5 represents one of the groups mentioned under R 4 , and physiologically tolerable salts of these compounds with an organic or inorganic acid.
  • Particularly preferred derivatives of indoline are 5,6-dihydroxyindoline, N-methyl-5,6-dihydroxyindoline, N-ethyl-5,6-dihydroxyindoline, N-propyl-5,6-dihydroxyindoline, N-butyl-5,6 dihydroxyindoline, 5,6-dihydroxyindoline-2-carboxylic acid and 6-hydroxyindoline, 6-aminoindoline and 4-aminoindoline.
  • N-methyl-5,6-dihydroxyindoline N-ethyl-5,6-dihydroxyindoline, N-propyl-5,6-dihydroxyindoline, N-butyl-5,6-dihydroxyindoline and in particular that 5,6-Dihydroxyindolin.
  • R 1 stands for hydrogen, a CrC 4 alkyl group or a C 1 -C 4 hydroxyalkyl group
  • R 2 stands for hydrogen or a -COOH group
  • the -COOH group also as a salt with a physiologically acceptable cation may be present
  • - R 3 represents hydrogen or a C 1 -C 4 alkyl group
  • - R 4 represents hydrogen, a C 1 -C 4 alkyl group or a group -CO-R 6 , in which R 6 represents a CrC 4 alkyl group
  • R 5 represents one of the groups mentioned under R, and physiologically tolerable salts of these compounds with an organic or inorganic acid.
  • Particularly preferred derivatives of indole are 5,6-dihydroxyindole, N-methyl-5,6-dihydroxyindole, N-ethyl-5,6-dihydroxyindole, N-propyl-5,6-dihydroxyindole, N-butyl-5, 6-dihydroxyindole, 5,6-dihydroxyindole-2-carboxylic acid, 6-hydroxyindole, 6-aminoindole and 4-aminoindole.
  • N-methyl-5,6-dihydroxyindole, N-ethyl-5,6-dihydroxyindole, N-propyl-5,6-dihydroxyindole, N-butyl-5,6-dihydroxyindole and in particular 5.6 are to be emphasized -Dihydroxyindol.
  • the indoline and indole derivatives can be in the colorants according to the invention both as free bases and in the form of their physiologically tolerable salts with inorganic or organic acids, for.
  • the indole or indoline derivatives are usually contained in these in amounts of 0.05-10% by weight, preferably 0.2-5% by weight.
  • the indoline or indole derivative in colorants in combination with at least one amino acid or an oligopeptide.
  • the amino acid is advantageously an ⁇ -amino acid; very particularly preferred ⁇ -amino acids are arginine, omithin, lysine, serine and histidine, in particular arginine.
  • the colorants according to the invention can contain one or more substantive dyes for shading.
  • Direct dyes are usually nitrophenylenediamines, nitroaminophenols, azo dyes, anthraquinones or indophenols.
  • Preferred direct dyes are those with the international names or trade names HC Yellow 2, HC Yellow 4, HC Yellow 5, HC Yellow 6, HC Yellow 12, Acid Yellow 1, Acid Yellow 10, Acid Yellow 23, Acid Yellow 36, HC Orange 1, Disperse Orange 3, Acid Orange 7, HC Red 1, HC Red 3, HC Red 10, HC Red 11, HC Red 13, Acid Red 33, Acid Red 52, HC Red BN, Pigment Red 57: 1, HC Blue 2, HC Blue 12, Disperse Blue 3, Acid Blue 7, Acid Green 50, HC Violet 1, Disperse Violet 1, Disperse Violet 4, Acid Violet 43, Disperse Black 9, Acid Black 1, and Acid Black 52 known compounds and l , 4-diamino-2-nitrobenzene, 2-amino-4-nitrophenol, l, 4-bis (ß-hydroxyethyl) amino-2-nitrobenzene, 3 -nitro-4- (ß-hydroxy
  • the agents according to the invention can also contain a cationic direct dye.
  • a cationic triphenylmethane dyes such as, for example, Basic Blue 7, Basic Blue 26, Basic Violet 2 and Basic Violet 14,
  • aromatic systems which are substituted by a quaternary nitrogen group, such as, for example, Basic Yellow 57, Basic Red 76, Basic Blue 99, Basic Brown 16 and Basic Brown 17, as well as
  • a substantive dyes which contain a heterocycle which has at least one quaternary nitrogen atom, as described, for example, in EP-A2-998 908, to which at this point explicit reference is made to claims 6 to 11.
  • Preferred cationic direct dyes of group (c) are in particular the following compounds:
  • the compounds of the formulas (DZl), (DZ3) and (DZ5) which are also known under the names Basic Yellow 87, Basic Orange 31 and Basic Red 51, are very particularly preferred cationic direct dyes of group (c).
  • the cationic direct dyes that are sold under the Arianor brand are also very particularly preferred cationic direct dyes according to the invention.
  • the agents according to the invention in accordance with this embodiment preferably contain the substantive dyes in an amount of 0.01 to 20% by weight, based on the total colorant.
  • preparations according to the invention can also contain naturally occurring dyes, such as those contained in henna red, henna neutral, henna black, chamomile flowers, sandalwood, black tea, sapwood, sage, blue wood, madder root, catechu, sedre and alkanna root.
  • naturally occurring dyes such as those contained in henna red, henna neutral, henna black, chamomile flowers, sandalwood, black tea, sapwood, sage, blue wood, madder root, catechu, sedre and alkanna root.
  • the hair colorants according to the invention may also contain minor components in minor amounts, provided that these do not adversely affect the coloring result or for other reasons, e.g. toxicological, must be excluded.
  • Colorants can also contain all active ingredients, additives and auxiliaries known for such preparations.
  • the colorants contain at least one surfactant, with both anionic and zwitterionic, ampholytic, nonionic and cationic surfactants being suitable in principle.
  • anionic surfactants in preparations according to the invention are all anionic surface-active substances suitable for use on the human body. These are characterized by a water-solubilizing, anionic group such as. B.
  • glycol or polyglycol ether groups, ester, ether and amide groups and hydroxyl groups can be contained in the molecule.
  • Preferred anionic surfactants are alkyl sulfates, alkyl polyglycol ether sulfates and ether carboxylic acids with 10 to 18 carbon atoms in the alkyl group and up to 12 glycol ether groups in the molecule, and in particular salts of saturated and in particular unsaturated Cg-C 22 carboxylic acids, such as oleic acid, stearic acid, Isostearic acid and palmitic acid.
  • Non-ionic surfactants contain z.
  • B a polyol group, a polyalkylene glycol ether group or a combination of polyol and polyglycol ether group.
  • Such compounds are, for example, adducts of 2 to 30 mol of ethylene oxide and / or 0 to 5 mol of propylene oxide with linear fatty alcohols with 8 to 22 C atoms, with fatty acids with 12 to 22 C atoms and with alkylphenols with 8 to 15 C atoms in the alkyl group, C 12 -C 22 fatty acid monoesters and diesters of adducts of 1 to 30 moles of ethylene oxide.
  • Glycerin, C 8 -C 22 alkyl mono- and oligoglycosides and their ethoxylated analogues as well as addition products of 5 to 60 moles of ethylene oxide with castor oil and hardened castor oil.
  • Preferred nonionic surfactants are alkyl polyglycosides of the general formula R ! O- (Z) ⁇ . These connections are characterized by the following parameters.
  • the alkyl radical R 1 contains 6 to 22 carbon atoms and can be either linear or branched. Primary linear and methyl-branched aliphatic radicals in the 2-position are preferred. Examples of such alkyl radicals are 1-octyl, 1-decyl, 1-lauryl, 1-myristyl, 1-cetyl and 1-stearyl. 1-Octyl, 1-decyl, 1-lauryl, 1-myristyl are particularly preferred. When so-called "oxo alcohols" are used as starting materials, compounds with an odd number of carbon atoms in the alkyl chain predominate.
  • the alkyl polyglycosides which can be used according to the invention can contain, for example, only a certain alkyl radical R 1 . Usually, however, these compounds are made from natural fats and oils or mineral oils. In this case, the alkyl radicals R are mixtures corresponding to the starting compounds or corresponding to the respective working up of these compounds.
  • R 1 consists essentially of C 8 - and C ⁇ 0 alkyl groups, essentially from C 1 2- and C 14 - alkyl groups, essentially from C 8 - to C ⁇ alkyl groups or essentially consists of C 12 - to C 16 alkyl groups.
  • Any mono- or oligosaccharides can be used as the sugar building block Z.
  • Sugar with 5 or 6 carbon atoms and the corresponding oligosaccharides are usually used.
  • sugars are glucose, fructose, galactose, arabinose, ribose, xylose, lyxose, allose, old rose, mannose, gulose, idose, talose and sucrose.
  • Preferred sugar components are glucose, fructose, galactose, arabinose and sucrose; Glucose is particularly preferred.
  • alkyl polyglycosides which can be used according to the invention contain on average 1.1 to 5 sugar units. Alkyl polyglycosides with x values from 1.1 to 1.6 are preferred. Alkyl glycosides in which x is 1.1 to 1.4 are very particularly preferred.
  • the alkyl glycosides can also serve to improve the fixation of fragrance components on the hair.
  • the person skilled in the art will preferably resort to this substance class as a further ingredient of the preparations according to the invention.
  • alkoxylated homologs of the alkyl polyglycosides mentioned can also be used in accordance with the invention. These homologues can contain an average of up to 10 ethylene oxide and / or propylene oxide units per alkyl glycoside unit.
  • zwitterionic surfactants can be used, in particular as co-surfactants. Zwitterionic surfactants are surface-active compounds that contain at least one quaternary ammonium group and at least one -COO () - or -SO 3 ⁇ group in the molecule.
  • Particularly suitable zwitterionic surfactants are the so-called betaines such as the N-alkyl-N, N-dimethylammonium glycinate, for example the coconut alkyl dimethylammonium glycinate, N-acyl-aminopropyl-N, N-dimethylammonium glycinate, for example the coconut acylaminopropyl-dimethylammonium glycinate, and 2-alkyl-3-carboxylmethyl-3-hydroxyethyl-imidazolines each having 8 to 18 carbon atoms in the alkyl or acyl group, and also the cocoacylaminoethylhydroxyethylcarboxymethylglycinate.
  • a preferred zwitterionic surfactant is the fatty acid amide derivative known under the INCI name Cocamidopropyl Betaine.
  • Ampholytic surfactants are also particularly suitable as co-surfactants.
  • Ampholytic surfactants are surface-active compounds which, in addition to a C 8 -C 8 alkyl or acyl group, contain at least one free amino group and at least one -COOH or -SO 3 H group in the molecule and to form internal ones Salts are capable.
  • ampholytic surfactants are N-alkylglycines, N-alkylpropionic acids, N-alkylaminobutyric acids, N-alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropylglycines, N-alkyltaurines, N-alkylsarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids, each with about 8 to 18 carbon atoms in the alkyl group.
  • Particularly preferred ampholytic surfactants are N-cocoalkylaminopropionate, cocoacylaminoethyl aminopropionate and C ⁇ ⁇ 2- 8 acyl sarcosine.
  • cationic surfactants in particular can be those of the quaternary ammonium compound, esterquat and amidoamine type.
  • Preferred quaternary ammonium compounds are ammonium halides, especially chlorides and bromides, such as alkyltrimethylammonium chlorides, dialkyldimethylammonium chloride and trialkylmethylammonium chlorides, e.g. B. cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, distearyldimethylammonium chloride, lauryldimethylammonium chloride, lauryldimethylbenzylammonium chloride and tricetylmethylammonium chloride, as well as those under the INCI names Quatemium-27 and Quatemium-83 known imidazolium compounds.
  • the long alkyl chains of the above-mentioned surfactants preferably have 10 to 18 carbon atoms.
  • Ester quats are known substances which contain both at least one ester function and at least one quaternary ammonium group as a structural element.
  • Preferred ester quats are quaternized ester salts of fatty acids with triethanolamine, quaternized ester salts of fatty acids with diethanolalkylamines and quaternized ester salts of fatty acids with 1,2-dihydroxypropyldialkylamines.
  • Such products are sold, for example, under the brands Stepantex ® , Dehyquart ® and Armocare ® .
  • the alkylamidoamines are usually produced by amidation of natural or synthetic fatty acids and fatty acid cuts with dialkylaminoamines.
  • An inventively particularly suitable compound from this group of substances that available under the brand Tegoamid ® S 18 commercially stearamidopropyl dimethylamine is.
  • the quaternized protein hydrolyzates are further cationic surfactants which can be used according to the invention.
  • cationic silicone oils such as, for example, the commercially available products Q2-7224 (manufacturer: Dow Corning; a stabilized trimethylsilylamodimethicone), Dow Coming 929 emulsion (containing a hydroxylamino-modified silicone, which is also referred to as amodimethicone), SM-2059 (Manufacturer: General Electric), SLM-55067 (manufacturer: Wacker) and Abil ® - Quat 3270 and 3272 (manufacturer: Th. Goldschmidt; diquaternary polydimethylsiloxanes, Quaternium-80).
  • a suitable cationic surfactant quaternary sugar derivative is the commercial product Glucquat ® 100, according to INCI nomenclature a "lauryl methyl Gluceth-10 Hydroxypropyl Dimonium Chloride".
  • the compounds with alkyl groups used as surfactant can each be uniform substances. However, it is generally preferred to use native vegetable or animal raw materials in the production of these substances, so that substance mixtures with different alkyl chain lengths depending on the respective raw material are obtained.
  • both products with a "normal” homolog distribution and those with a narrowed homolog distribution can be used.
  • “Normal” homolog distribution is understood to mean mixtures of homologs which are obtained as catalysts when converting fatty alcohol and alkylene oxide using alkali metals, alkali metal hydroxides or alkali metal alcoholates.
  • narrow homolog distributions are obtained if, for example, hydrotalcites, alkaline earth metal salts of ether carboxylic acids, alkaline earth metal oxides, hydroxides or alcoholates are used as catalysts. The use of products with a narrow homolog distribution can be preferred.
  • the colorants according to the invention can contain further active ingredients, auxiliaries and additives, such as, for example, nonionic polymers such as, for example, vinylpyrrolidone / vinyl acrylate copolymers, polyvinylpyrrolidone and vinylpyrrolidone / vinyl acetate copolymers and polysiloxanes, cationic polymers such as quaternized cellulose ethers, polysiloxane groups , Dimethyldiallylammonium chloride polymers, acrylamide-dimethyldiallyl-ammonium chloride copolymers, diethyl sulfate-quaternized dimethylamino-ethyl methacrylate-vinylpyrrolidone copolymers, vinylpyrrolidone-imidazolinium-methochloride copolymers and quaternized polyvinylalcohol-acrylate-methyl-aminopropyl-acrylate-trimethylammonylammonyl polymers, for example,
  • Thickeners such as agar agar, guar gum, alginates, xanthan gum, gum arabic, karaya gum, locust bean gum, linseed gums, dextrans, cellulose derivatives, e.g. As methyl cellulose, hydroxyalkyl cellulose and carboxy methyl cellulose, starch fractions and derivatives such as amylose, amylopectin and dextrins, clays such.
  • B. bentonite or fully synthetic hydrocolloids such as e.g. polyvinyl alcohol,
  • Structurants such as maleic acid and lactic acid, hair-conditioning compounds such as phospholipids, for example soy lecithin, egg lecithin and cephalins,
  • Protein hydrolyzates in particular elastin, collagen, keratin, milk protein, soy protein and wheat protein hydrolyzates, their condensation products with fatty acids and quaternized protein hydrolyzates, perfume oils, dimethyl isosorbide and cyclodextrins,
  • Solvents and mediators such as ethanol, isopropanol, ethylene glycol, propylene glycol, glycerin and diethylene glycol, active substances that improve fiber structure, in particular mono-, di- and oligosaccharides such as glucose, galactose, fructose, fructose and lactose, quaternized amines such as methyl l-alkylamidoethyl -2-alkylimidazolinium methosulfate
  • Defoamers such as silicones, dyes for coloring the agent,
  • Anti-dandruff agents such as piroctone olamine, zinc omadine and climbazole, light stabilizers, in particular derivatized benzophenones, cinnamic acid derivatives and triazines,
  • Substances for adjusting the pH such as customary acids, in particular edible acids and bases,
  • Active ingredients such as allantoin, pyrrolidone carboxylic acids and their salts and bisabolol,
  • Vitamins, provitamins and vitamin precursors in particular those from groups A, B 3 , B 5 , B 6 , C, E, F and H,
  • Plant extracts such as the extracts from green tea, oak bark, nettle, witch hazel, hops, chamomile, burdock root, horsetail, hawthorn, linden flowers, almond, aloe vera, spruce needle, horse chestnut, sandalwood, juniper, coconut, mango, apricot, lime, wheat, kiwi , Melon, orange, grapefruit, Sage, rosemary, birch, mallow, cuckoo flower, quendel, yarrow, thyme, lemon balm, hake, coltsfoot, marshmallow, meristem, ginseng and ginger root.
  • Cholesterol, consistency enhancers such as sugar esters, polyol esters or polyol alkyl ethers, - fats and waxes such as walrus, beeswax, montan wax and paraffins, fatty acid alkanolamides, - complexing agents such as EDTA, NTA, ß-alanine diacetic acid and phosphonic acids, swelling and penetration substances such as glycerol, propylene glycol monoethyl carbonates, carbonates, hydrates , Guanidines, ureas and primary, secondary and tertiary phosphates, opacifiers such as latex, styrene / PVP and styrene / acrylamide copolymers pearlescent agents such as ethylene glycol mono- and distearate as well as PEG-3 distearate, pigments, stabilizing agents for hydrogen peroxide and other oxidizing agents, blowing agents such as propane-butane mixtures, N 2 O
  • the agents according to the invention preferably contain the dye precursors in a suitable aqueous, alcoholic or aqueous-alcoholic carrier.
  • a suitable aqueous, alcoholic or aqueous-alcoholic carrier are, for example, creams, emulsions, gels or also surfactant-containing foaming solutions, such as shampoos, foam aerosols or other preparations which are suitable for use on the hair.
  • surfactant-containing foaming solutions such as shampoos, foam aerosols or other preparations which are suitable for use on the hair.
  • aqueous-alcoholic solutions are to be understood as meaning aqueous solutions containing 3 to 70% by weight of a C 1 -C 4 alcohol, in particular ethanol or isopropanol.
  • the agents according to the invention can additionally contain further organic solvents, such as methoxybutanol, benzyl alcohol, ethyl diglycol or 1,2-propylene glycol. All water-soluble organic solvents are preferred.
  • the actual oxidative coloring of the fibers can basically be done with atmospheric oxygen.
  • a chemical oxidizing agent is preferably used, especially if, in addition to the coloring, a lightening effect on human hair is desired.
  • Persulfates, chlorites and in particular hydrogen peroxide or their adducts with urea, melamine and sodium borate are suitable as oxidizing agents.
  • the oxidation coloring agent can also be applied to the hair together with a catalyst which oxidizes the dye precursors, e.g. activated by atmospheric oxygen.
  • catalysts are e.g. Metal ions, iodides, quinones or certain enzymes.
  • Suitable metal ions are, for example, Zn 2+ , Cu 2+ , Fe 2+ , Fe 3+ , Mn 2+ , Mn 4+ , Li + , Mg 2+ , Ca 2+ and Al 3+ .
  • Zn 2+ , Cu 2+ and Mn 2+ are particularly suitable.
  • the metal ions can be used in the form of any physiologically acceptable salt or in the form of a complex compound.
  • Preferred salts are the acetates, sulfates, halides, lactates and tartrates.
  • Suitable enzymes are, for example, peroxidases, which can significantly increase the effect of small amounts of hydrogen peroxide. Furthermore, such enzymes are suitable according to the invention which directly oxidize the oxidation dye precursors with the help of atmospheric oxygen, such as for example the laccases, or generate small amounts of hydrogen peroxide in situ and in this way activate the oxidation of the dye precursors biocatalytically.
  • Particularly suitable catalysts for the oxidation of the dye precursors are the so-called 2-electron oxidoreductases in combination with the substrates specific therefor, for example pyranose oxidase and for example D-glucose or galactose, glucose oxidase and D-glucose, glycerol oxidase and glycerol, Pyruvate oxidase and pyruvic acid or its salts, Alcohol oxidase and alcohol (MeOH, EtOH), lactate oxidase and lactic acid and its salts, tyrosinase oxidase and tyrosine, uricase and uric acid or their salts, choline oxidase and choline, amino acid oxidase and arino acids.
  • 2-electron oxidoreductases in combination with the substrates specific therefor, for example pyranose oxidase and for example D-glucose
  • the actual hair dye is expediently prepared immediately before use by mixing the preparation of the oxidizing agent with the preparation containing the dye precursors.
  • the resulting ready-to-use hair dye preparation should preferably have a pH in the range from 6 to 12. It is particularly preferred to use the hair dye in a weakly alkaline environment. Application temperatures can range between 15 and 40 ° C. After an exposure time of generally 5 to 45 minutes, the hair dye is removed from the hair to be colored by rinsing. Washing with a shampoo is not necessary if a carrier with a high tenside content, e.g. a coloring shampoo was used.
  • the preparation with the dye precursors can also be applied to the hair without prior mixing with the oxidation component. After an exposure time of 20 to 30 minutes, the oxidation component is then applied, if necessary after an intermediate rinse. After a further exposure time of 10 to 20 minutes, the skin is rinsed and, if necessary, re-shampooed.
  • the corresponding agent is adjusted to a pH of about 4 to 7.
  • air oxidation is initially sought, with the applied one. Agent preferably has a pH of 7 to 10. In the subsequent accelerated postoxidation, the use of acidified peroxidisulfate solutions as the oxidizing agent can be preferred.
  • a second subject of the present application is the use of the m-phenylenediamine derivatives according to the invention for dyeing keratin fibers.
  • a third object of the present invention is a process for dyeing keratin fibers, in which a hair dye according to the invention is applied to the fibers and rinsed off again after an exposure time.
  • a fourth object of the present invention is an m-phenylenediamine derivative of the general formula (I) as described above. 2 - ( ⁇ 3 - [(2-Hydroxyethyl) amino-5-methylphenyl ⁇ amino) ethanol is a very particularly preferred compound of the formula (I).
  • a fifth object of the present invention is an intermediate synthesis selected from the group consisting of 2-chloroethyl-3 - ⁇ [(2-chloroethoxy) carbonyl] amino ⁇ -5-methylphenylcarbamate and 3- [3-methyl-5- (2nd -oxo-l, 3-oxazolidin-3-yl) phenyl] -l, 3-oxazolidin-2-one.
  • the cream base used had the following composition:
  • the dissolved dye precursors were worked into the hot cream one after the other.
  • the mixture was then made up to 97 g with distilled water and filled with Ammonia adjusted a pH of 9.5. After filling up to 100 g with distilled water, the mixture was stirred cold ( ⁇ 30 ° C.), a homogeneous cream being formed.
  • a strand of hair (80% gray; 330 mg to 370 mg in weight) was added to each of the mixtures thus obtained.
  • the mixtures and the strands of hair were then each placed on a watch glass and the strands of hair were well embedded in the coloring creams. After 30 minutes ( ⁇ 1 minute) of exposure at room temperature, the strands of hair were removed and washed with an aqueous Texapon ® EVR solution until the excess color was removed.
  • the strands of hair were air-dried and their shade was determined and noted under the daylight lamp (color testing device HE240A) (Taschenlexikon der Weg Arthur, A.

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Abstract

L'invention concerne un agent qui sert à colorer des fibres kératiniques, notamment des cheveux humains, et qui contient comme constituant copulant, dans un support cosmétiquement acceptable, au moins un dérivé de m-phénylènediamine de formule générale (I) ou des sels de ce composé. Dans la formule (I), R1, R2, R3, R4 représentent indépendamment les uns des autres H, alkyle C1-6, hydroxyalkyle C2-6, alcoxyalkyle C2-6, aminoalkyle C2-6, alkylaminoalkyle C3-10, dialkylaminoalkyle C4-12, à condition qu'au moins un des restes R1, R2, R3, R4 soit différent de H, et R5 et R6 représentent indépendamment l'un de l'autre H, alkyle C1-6, hydroxyalkyle C1-6, alcoxyalkyle C2-6, un des restes R5 ou R6 pouvant également représenter -OH, alcoxy C1-6, -NH2, -NHR, -NR2, les R représentant respectivement, indépendamment l'un de l'autre, alkyle C1-4 à substitution OH éventuelle.
EP05774856A 2004-05-28 2005-04-30 Constituants copulants m-phenylenediamine Ceased EP1748755A1 (fr)

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DE200410026732 DE102004026732A1 (de) 2004-05-28 2004-05-28 m-Phenylendiamin-Kupplerkomponenten
PCT/EP2005/004701 WO2005117817A1 (fr) 2004-05-28 2005-04-30 Constituants copulants m-phenylenediamine

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US3194793A (en) * 1961-12-13 1965-07-13 Du Pont Polyurethanes cured with mixtures of aromatic primary and secondary diamines
DE3824299A1 (de) * 1988-07-18 1990-04-12 Henkel Kgaa Haarfaerbemittel
DE4132615C2 (de) * 1991-10-01 1994-08-18 Schwarzkopf Gmbh Hans Substituierte 2,6-Diaminotoluole, Verfahren zu ihrer Herstellung sowie Färbemittel für keratinische Fasern, die diese enthalten
US6072046A (en) * 1998-08-26 2000-06-06 Epoch Pharmaceuticals, Inc. Diaziridinyl-aryl and bis-[di(chloroethyl)amino]-aryl oligonucleotide conjugates and reagents for making the same
DE20007653U1 (de) * 2000-04-27 2001-09-06 Goldwell GmbH, 64297 Darmstadt Haarfärbemittel
WO2003006427A1 (fr) * 2001-07-12 2003-01-23 Johns Hopkins University Composes liberant du monoxyde d'azote a debit regule par photolyse

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Title
See references of WO2005117817A1 *

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