DE102005022789A1 - Agent for dyeing keratinous fibers - Google Patents

Abstract

The invention relates to an agent for dyeing keratin-containing fibers, in particular human hair, containing selected benzoic acids functionalized with at least one formyl group and at least one hydroxyl group and / or its derivatives in combination with CH-acidic compounds, the use of this combination in dyeing agents of keratin-containing fibers, for color refreshment or nuancing of already dyed keratin-containing fibers, and a method for dyeing keratin-containing fibers, in particular human hair.

Description

The Invention relates to an agent for dyeing keratin-containing fibers, In particular, human hair, the selected, with at least one Functionalized formyl group and at least one hydroxy group benzoic acids and / or its derivatives in combination with CH-acidic compounds contains the use of this combination in dyeing agents Keratinhaltigen fibers, for color refreshment or nuance of already colored keratin-containing fibers and a process for dyeing keratin-containing fibers, especially human hair.

For dyeing keratin-containing fibers are generally either direct-acting Dyes or oxidation dyes produced by oxidative coupling one or more developer components with each other or with one or more coupler components arise for use. Coupler and developer components are also known as oxidation dye precursors designated.

When Developer components are usually primary aromatic amines with another, in para or ortho position free or substituted hydroxy or amino group, Diaminopyridine derivatives, heterocyclic hydrazones, 4-aminopyrazolone derivatives and 2,4,5,6-tetraaminopyrimidine and its derivatives used.

Specific Representatives are, for example, p-phenylenediamine, p-toluenediamine, 2,4,5,6-tetraaminopyrimidine, p-aminophenol, N, N-bis (2-hydroxyethyl) -p-phenylenediamine, 2- (2,5-diaminophenyl) ethanol, 2- (2,5-diaminophenoxy) ethanol, 1-phenyl-3-carboxamido-4-amino-pyrazol-5-one, 4-amino-3-methylphenol, 2-aminomethyl-4-aminophenol, 2-hydroxymethyl-4-aminophenol, 2-hydroxy-4,5,6-triaminopyrimidine, 2,4-Dihydroxy-5,6-diaminopyrimidine, 2,5,6-triamino-4-hydroxypyrimidine and 4,5-diamino-1- (2-hydroxyethyl) pyrazole.

When Coupler components are usually m-phenylenediamine derivatives, Naphthols, resorcinol and resorcinol derivatives, pyrazolones, m-aminophenols and substituted pyridine derivatives. As coupler substances Particularly suitable are α-naphthol, 1,5-, 2,7- and 1,7-dihydroxynaphthalene, 5-amino-2-methylphenol, m-aminophenol, resorcinol, resorcinol monomethyl ether, m-phenylenediamine, 2,4-diaminophenoxyethanol, 2-amino-4- (2-hydroxyethylamino) -anisole (Lehmann's Blue), 1-phenyl-3-methyl-pyrazol-5-one, 2,4-dichloro-3-aminophenol, 1,3-bis- (2,4-diaminophenoxy) -propane, 2-chlororesorcinol, 4-chlororesorcinol, 2-chloro-6-methyl-3-aminophenol, 2-methylresorcinol, 5-methylresorcinol, 3-amino-6-methoxy-2-methylamino-pyridine and 3,5-diamino-2,6-dimethoxypyridine.

Regarding other usual ones Dye components becomes explicit to the series "Dermatology, edited by Ch. Culnan, H. Maibach, Publisher Marcel Dekker Inc., New York, Basel, 1986, Vol. 7, Ch. Zviak, The Science of Hair Care, Cape. 7, pages 248-250 (Direct dyes), and Chap. 8, pages 264-267 (oxidation dyes), as well as the "European Inventory of cosmetic raw materials ", 1996, published by the European Commission, available in Diskette form of the Federal Association of German industrial and commercial enterprises for medicines, Health food and personal care products e.V., Mannheim.

Although intensive dyeings with good fastness properties can be obtained with oxidation dyes, the development of the color is generally carried out under the influence of oxidizing agents such. H ₂ O ₂ , which in some cases may result in damage to the fiber. Furthermore, some oxidation dye precursors or certain mixtures of oxidation dye precursors can sometimes have a sensitizing effect on persons with sensitive skin. Direct dyes are applied under gentler conditions, but their disadvantage lies in the fact that the dyes often have only insufficient fastness properties.

The object of the present invention is to provide colorants for keratin-containing fibers, in particular human hair, which are at least equivalent in terms of color depth and fastness properties, such as light fastness, rubfastness and washfastness, as well as perspiration and cold wave fastness, to the usual oxidation hair colorants However, necessarily on oxidizing agents such. B. H ₂ O ₂ instructed to be. In addition, the colorants must have no or only a very low sensitizing potential and may under no circumstances be mutagenic.

Colorant containing compounds according to the following formula I in combination with CH-acidic compounds, as well as the use of this combination for dyeing keratin-containing fibers or Color refreshing or shading of already colored keratin-containing fibers are not yet known.

The patent application WO-A1-2004 / 022016 discloses CH-acidic 1,2-dihydropyrimidinium derivatives which are suitable for coloring keratin-containing fibers in combination with reactive carbonyl compounds, in particular benzaldehyde derivatives. The disclosed benzaldehyde derivatives may generally bear a carboxy group (-COOH) or a carbamoyl group (-CO-NH ₂ ) and a hydroxy group. Benzaldehydes with the substitution pattern of the compounds of the invention according to the following formula I are not mentioned therein.

Surprisingly has now been found that the in the formula I compounds in combination with CH-acids Compounds also in the absence of oxidizing agents excellent for dyeing of keratin-containing fibers are suitable. They give colorings with outstanding brilliance and color depth and lead to a variety of color nuances. There are in particular colorations with improved fastness properties over a nuance range of yellow over orange, brown orange, brown, red, reddish purple to blue violet and dark blue. The use of oxidizing agents should but not excluded in principle. Draw further the benzaldehyde derivatives of the invention by an increased physiological compatibility.

• – als Komponente A mindestens eine Verbindung gemäß Formel I,
  
  worin R1, R2 und R3 stehen unabhängig voneinander für ein Wasserstoffatom, ein Halogenatom, eine C₁-C₆-Alkylgruppe, eine C₂-C₆-Alkenylgruppe, eine Hydroxygruppe, eine C₁-C₆-Alkoxygruppe, eine C₁-C₆-Hydroxyalkylgruppe, eine C₂-C₆-Polyhydroxyalkylgruppe, eine Hydroxy(C₁-C₆)alkyloxygruppe, eine Carboxygruppe, eine (C₁-C₆)Alkoxycarbonylgruppe, eine Hydroxy(C₂-C₆)alkyloxycarbonylgruppe, eine C₂-C₆-Acylgruppe, eine Formylgruppe, eine Nitrogruppe, eine Gruppe -C(O)-NR⁴R⁵, oder eine Gruppe -(CH₂)_nNR⁶R⁷, worin R⁴, R⁵, R⁶ und R⁷ unabhängig voneinander stehen für ein Wasserstoffatom, eine C₁-C₆-Alkylgruppe oder eine C₂-C₆-Hydroxyalkylgruppe und n für eine ganze Zahl von 0 bis 6 steht, wobei R1 und R2 einen 5- oder 6-gliederigen aromatischen oder heteroaromatischen Ring bilden können, Y steht für eine Gruppe -OR^I oder -NR^IIR^III, worin R^I, R^II und R^III unabhängig voneinander ein Wasserstoffatom, eine C₁-C₆-Alkylgruppe, C₂-C₆-Alkenylgruppe, eine C₂-C₆-Hydroxyalkylgruppe, eine C₂-C₆-Polyhydroxyalkylgruppe, eine C₁-C₆-Alkoxy-(C₁-C₆)-alkylgruppe, eine Arylgruppe, eine Heteroarylgruppe, eine Aryl-(C₁-C₆)-alkylgruppe, eine Gruppe -(CH₂)_mNR^6aR^7a bedeuten, worin R^6a und R^7a unabhängig voneinander stehen für ein Wasserstoffatom, eine C₁-C₆-Alkylgruppe oder eine C₂-C₆-Hydroxyalkylgruppe und m für eine ganze Zahl von 1 bis 6 steht, zusammen mit
• – mindestens einer CH-aciden Verbindung als Komponente B.

A first object of the invention is an agent for dyeing keratin-containing fibers, in particular human hair, contained in a cosmetic carrier

• As component A at least one compound according to formula I,
  
  R _1, R _{2 and} R 3 independently of one another represent a hydrogen atom, a halogen atom, a C ₁ -C ₆ -alkyl group, a C ₂ -C ₆ -alkenyl group, a hydroxy group, a C ₁ -C ₆ -alkoxy group, a C ₁ - C ₆ hydroxyalkyl group, C ₂ -C ₆ polyhydroxyalkyl group, hydroxy (C ₁ -C ₆ ) alkyloxy group, carboxy group, (C ₁ -C ₆ ) alkoxycarbonyl group, hydroxy (C ₂ -C ₆ ) alkyloxycarbonyl group, a C ₂ -C ₆ acyl group, a formyl group, a nitro group, a group -C (O) -NR ⁴ R ⁵ , or a group - (CH ₂ ) _n NR ⁶ R ⁷ , wherein R ⁴ , R ⁵ , R ⁶ and R ⁷ independently of one another represent a hydrogen atom, a C ₁ -C ₆ -alkyl group or a C ₂ -C ₆ -hydroxyalkyl group and n is an integer from 0 to 6, where R ₁ and R _{2 are} a 5- or 6-membered Y is a group -OR ^I or -NR ^II R ^III , wherein R ^I , R ^II and R ^III are each independently a hydrogen atom, a C ₁ -C ₆ alkyl group e, C ₂ -C ₆ alkenyl group, a C ₂ -C ₆ hydroxyalkyl group, a C ₂ -C ₆ polyhydroxyalkyl group, a C ₁ -C ₆ alkoxy (C ₁ -C ₆ ) alkyl group, an aryl group, a heteroaryl group, an aryl- (C ₁ -C ₆ ) -alkyl group, a group - (CH ₂ ) _m NR ^6a R ^7a , in which R ^6a and R ^7a independently of one another represent a hydrogen atom, a C ₁ -C ₆ - Alkyl group or a C ₂ -C ₆ -hydroxyalkyl group and m is an integer from 1 to 6, together with
• - At least one CH-acidic compound as component B.

Under Keratin fibers are wool, furs, feathers and in particular to understand human hair. The colorants of the invention can but in principle also for dyeing other natural fibers, such. As cotton, jute, sisal, linen or Silk, modified natural fibers such. Regenerated cellulose, nitro, Alkyl or hydroxyalkyl or acetyl cellulose can be used.

Examples of C ₁ -C ₆ -alkyl radicals are the groups methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl and tert-butyl, n-pentyl and n-hexyl. Propyl, ethyl and methyl are preferred alkyl radicals. Examples of corresponding cyclic alkyl groups are cyclopentyl and cyclohexyl.

Examples of preferred C ₂ -C ₆ alkenyl radicals are vinyl and allyl.

Further, as preferred examples of a C ₁ -C ₆ hydroxyalkyl group, there may be mentioned hydroxymethyl, 2-hydroxyethyl, 2-hydroxypropyl, 3-hydroxypropyl, 4-hydroxybutyl, 5-hydroxypentyl and 6-hydroxyethyl to be named. A 2-hydroxyethyl group is particularly preferred.

Examples of a C ₂ -C ₆ polyhydroxyalkyl group are the 2,3-dihydroxypropyl group, 3,4-dihydroxybutyl group and the 2,4-dihydroxybutyl group.

C ₁ -C ₆ -alkoxy groups preferred according to the invention are, for example, a methoxy or an ethoxy group.

The methoxycarbonyl, ethoxycarbonyl, n-propoxycarbonyl, isopropoxycarbonyl, n-butoxycarbonyl, sec-butoxycarbonyl, tert-butoxycarbonyl, n-pentyloxycarbonyl and n-hexyloxycarbonyl are examples of C ₁ -C ₆ alkoxycarbonyl groups; the methoxycarbonyl and ethoxycarbonyl groups are particularly preferred.

The acetyl, n-propanoyl, n-butanoyl group and n-hexanoyl group are examples of a C ₂ -C ₆ acyl group.

The methoxyethyl, ethoxyethyl, methoxypropyl, methoxybutyl, ethoxybutyl and methoxyhexyl groups are examples of C ₁ -C ₆ -alkoxy-C ₂ -C ₆ -alkyl groups according to the invention.

A preferred hydroxy (C ₁ -C ₆ ) alkoxy group is the 2-hydroxyethoxy group.

Preferred hydroxy (C ₂ -C ₆ ) alkyloxycarbonyl groups are the 2-hydroxyethyloxycarbonyl group and the 2-methoxyethyloxycarbonyl group.

Examples for halogen atoms are F, Cl, Br or I atoms, with Br, Cl atoms being especially special are preferred.

The aminomethyl, 2-aminoethyl, 3-aminopropyl, 2-dimethylaminoethyl, diethylaminomethyl, dimethylaminomethyl, 2-methylaminoethyl, dimethylamino, piperidinomethyl, pyrrolidinomethyl, morpholinomethyl, bis (2-hydroxyethyl) amino and the amino group are examples of one Group R ⁶ R ⁷ N- (CH ₂ ) _n -, with the diethylaminomethyl, piperidinomethyl, 2-dimethylaminoethyl, dimethylamino and the amino group being particularly preferred.

The N, N-dimethylaminocarbonyl, N, N -diethylaminocarbonyl, N, N-bis (2-hydroxyethyl) aminocarbonyl and the carbamoyl group are exemplary groups R ⁴ R ⁵ NC (O) -. Preferred aryl-C ₁ -C ₆ -alkyl groups are benzyl and 2-phenylethyl.

preferred Aryl groups are phenyl, naphthyl and biphenyl.

Examples for one Heteroaryl group are pyrrolidyl, 2-furyl, 2-thienyl, 4-pyridyl, 3-pyridyl, 2-pyridyl, triazolyl and 1-imidazolyl.

The other terms used are derived from the invention definitions given here.

In a further embodiment it is preferred if, in compounds of the formula (I), the radicals R _1, R 2 and R 3 independently of one another represent a hydrogen atom, a halogen atom, a C ₁ -C ₆ -alkyl group or a C ₁ -C ₆ -alkoxy group ,

In a further embodiment contains the agent of the invention preferably at least one compound according to formula (I), which as substituent R2 and R3 carries a hydrogen atom.

Furthermore, in a further embodiment, preference is given to representatives of the compounds of the formula (I) which, as the radical R _{1, represent} a hydrogen atom, a C ₁ -C ₆ -alkyl group (in particular a methyl group), a C ₁ -C ₆ -alkoxy group (in particular a methoxy group) or carry a halogen atom. In this Ausfüh In turn, it is particularly preferred for the radicals R 2 and R 3 to be a hydrogen atom.

Y in formula (I) and its abovementioned embodiments preferably represents a group -OR ^I or -NR ^II R ^III , in which R ¹ , R ^II and R ^III independently of one another represent a hydrogen atom, a C ₁ -C ₆ -alkyl group ( in particular methyl or ethyl), a C ₂ -C ₆ hydroxyalkyl group (especially 2-hydroxyethyl), a C ₂ -C ₆ polyhydroxyalkyl group, a C ₁ -C ₆ alkoxy (C ₁ -C ₆ ) alkyl group (in particular a 2-methoxyethyl group).

It is particularly preferred when at least one of the following compounds of the formula (I) is contained in the agent according to the invention:

• a) von Aminen und deren Derivate unter Bildung von Iminen oder Oximen als Additionsverbindung
• b) von Alkoholen unter Bildung von Acetalen als Additionsverbindung
• c) von Wasser unter Bildung von Hydraten als Additionsverbindung

an das Kohlenstoffatom der Formylgruppe -CHO in Verbindungen gemäß Formel (I).Furthermore, those compounds according to the invention are also suitable as component A according to formula (I) in which the carbonyl group of the -CHO group in formula (I) is derivatized or masked such that the reactivity of the carbon atom of the derivatized carbonyl group towards the CH-acid Compounds of component B is always present. These derivatives are preferably addition compounds

• a) amines and derivatives thereof to form imines or oximes as addition compound
• b) of alcohols to form acetals as addition compound
• c) of water to form hydrates as addition compound

to the carbon atom of the formyl group -CHO in compounds according to formula (I).

When CH-acidic compounds of component B are generally those Compounds considered to be an aliphatic carbon atom Bound hydrogen atom, wherein due to electron-pulling Substituents causes activation of the corresponding carbon-hydrogen bond becomes. In principle, the selection of CH-acidic compounds are none Limits set as long after the aldol condensation with the benzaldehyde derivatives of the invention of the formula (I) a for the human eye is visibly colored. It is preferred according to the invention and those CH-acidic compounds which contain an aromatic and / or contain a heterocyclic radical. The heterocyclic residue may again be aliphatic or aromatic.

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• – R⁸ und R⁹ stehen unabhängig voneinander für eine lineare oder cyclische C₁-C₆-Alkylgruppe, eine C₂-C₆-Alkenylgruppe, eine gegebenenfalls substituierte Arylgruppe, eine gegebenenfalls substituierte Heteroarylgruppe, eine Aryl-C₁-C₆-alkylgruppe, eine C₁-C₆-Hydroxyalkylgruppe, eine C₂-C₆-Polyhydroxyalkylgruppe, eine C₁-C₆-Alkoxy-C₁-C₆-alkylgruppe, eine Gruppe R^IVR^VN-(CH₂)_p-, worin R^IV und R^V stehen unabhängig voneinander für ein Wasserstoffatom, eine C₁-C₄-Alkylgruppe, eine C₁-C₄-Hydroxyalkylgruppe oder eine Aryl-C₁-C₆-alkylgruppe, wobei R^IV und R^V gemeinsam mit dem Stickstoffatom einen 5-, 6- oder 7-gliedrigen Ring bilden können und p steht für eine Zahl 2, 3, 4, 5 oder 6,
• – R¹⁰ und R¹² stehen unabhängig voneinander für ein Wasserstoffatom oder eine C₁-C₆-Alkylgruppe, wobei mindestens einer der Reste R¹⁰ und R¹² eine C₁-C₆-Alkylgruppe bedeutet,
• – R¹¹ steht für ein Wasserstoffatom, eine C₁-C₆-Alkylgruppe, eine C₁-C₆-Hydroxyalkylgruppe, eine C₂-C₆-Polyhydroxyalkylgruppe, eine C₁-C₆-Alkoxygruppe, eine C₁-C₆-Hydroxyalkoxygruppe, eine Gruppe R^VIR^IIN-(CH₂)_q-, worin R^VI und R^VII stehen unabhängig voneinander für ein Wasserstoffatom, eine C₁-C₆-Alkylgruppe, eine C₁-C₆-Hydroxyalkylgruppe oder eine Aryl-C₁-C₆-alkylgruppe und q steht für eine Zahl 1, 2, 3, 4, 5 oder 6, wobei der Rest R¹¹ zusammen mit einem der Reste R¹⁰ oder R¹² einen 5- oder 6-gliedrigen aromatischen Ring bilden kann, der gegebenenfalls mit einem Halogenatom, einer C₁-C₆-Alkylgruppe, einer C₁-C₆-Hydroxyalkylgruppe, einer C₂-C₆-Polyhydroxyalkylgruppe, einer C₁-C₆-Alkoxygruppe, einer C₁-C₆-Hydroxyalkoxygruppe, einer Nitrogruppe, einer Hydroxygruppe, einer Gruppe R^VIIIR^IXN-(CH₂)_s-, worin R^VIII und R^IX stehen unabhängig voneinander für ein Wasserstoffatom, eine C₁-C₆-Alkylgruppe, eine C₁-C₆-Hydroxyalkylgruppe oder eine Aryl-C₁-C₆-alkylgruppe und s steht für eine Zahl 0, 1, 2, 3, 4, 5 oder 6 substituiert sein kann, Y¹ steht für ein Sauerstoffatom, ein Schwefelatom oder eine Gruppe NR^X, worin R^X steht für ein Wasserstoffatom, eine Arylgruppe, eine Heteroarylgruppe, eine C₁-C₆-Alkylgruppe oder eine C₁-C₆-Arylalkylgruppe,
• – X^– steht für ein physiologisch verträgliches Anion,
• – Het steht für einen gegebenenfalls substituierten Heteroaromaten,
• – X¹ steht für eine direkte Bindung oder eine Carbonylgruppe.

The compounds of the formula (I) are preferably combined with at least one CH-acidic compound which is selected from formulas (II) and / or (III)

wherein

• R ⁸ and R ⁹ independently of one another represent a linear or cyclic C ₁ -C ₆ -alkyl group, a C ₂ -C ₆ -alkenyl group, an optionally substituted aryl group, an optionally substituted heteroaryl group, an aryl-C ₁ -C ₆ - alkyl group, a C ₁ -C ₆ hydroxyalkyl group, a C ₂ -C ₆ polyhydroxyalkyl group, a C ₁ -C ₆ alkoxy-C ₁ -C ₆ alkyl group, a group R ^IV R ^V N- (CH ₂ ) _p in which R ^IV and R ^V independently of one another represent a hydrogen atom, a C ₁ -C ₄ -alkyl group, a C ₁ -C ₄ -hydroxyalkyl group or an aryl-C ₁ -C ₆ -alkyl group, where R ^IV and R ^V together with the nitrogen atom can form a 5-, 6- or 7-membered ring and p stands for a number 2, 3, 4, 5 or 6,
• R ¹⁰ and R ¹² independently of one another represent a hydrogen atom or a C ₁ -C ₆ -alkyl group, where at least one of the radicals R ¹⁰ and R ¹² denotes a C ₁ -C ₆ -alkyl group,
• R ¹¹ represents a hydrogen atom, a C ₁ -C ₆ -alkyl group, a C ₁ -C ₆ -hydroxyalkyl group, a C ₂ -C ₆ -polyhydroxyalkyl group, a C ₁ -C ₆ -alkoxy group, a C ₁ -C ₆ -Hydroxyalkoxygruppe, a group R ^VI R ^II N- (CH ₂ ) _q -, wherein R ^VI and R ^VII independently represent a hydrogen atom, a C ₁ -C ₆ alkyl group, a C ₁ -C ₆ hydroxyalkyl group or a Aryl-C ₁ -C ₆ -alkyl group and q is a number 1, 2, 3, 4, 5 or 6, wherein the radical R ¹¹ together with one of the radicals R ¹⁰ or R ^{12 is} a 5- or 6-membered aromatic Ring optionally containing a halogen atom, a C ₁ -C ₆ -alkyl group, a C ₁ -C ₆ -hydroxyalkyl group, a C ₂ -C ₆ -polyhydroxyalkyl group, a C ₁ -C ₆ -alkoxy group, a C ₁ - C ₆ -hydroxyalkoxy group, a nitro group, a hydroxy group, a group R ^VIII R ^IX N- (CH ₂ ) _s -, wherein R ^VIII and R ^IX are each independently a hydrogen atom, a C ₁ -C ₆ alkyl group, a C C ₁ -C ₆ -hydroxyalkyl group or an aryl-C ₁ -C ₆ -alkyl group and s is a number 0, 1, 2, 3, 4, 5 or 6 may be substituted, Y ¹ is an oxygen atom, a sulfur atom or a group NR ^X in which R ^X represents a hydrogen atom, an aryl group, a heteroaryl group, a C ₁ -C ₆ -alkyl group or a C ₁ -C ₆ -arylalkyl group,
• - X ^- represents a physiologically acceptable anion,
• Het is an optionally substituted heteroaromatic,
• - X ¹ represents a direct bond or a carbonyl group.

With the same effect the compounds of formula II are their enamine forms. It will here explicitly the document WO-A1-2004 / 022016, to the full extent Reference is made.

At least one group R ¹⁰ or R ¹² according to formula II is necessarily a C ₁ -C ₆ -alkyl group. This alkyl group preferably carries at least two hydrogen atoms on its α-carbon atom. Particularly preferred alkyl groups are the methyl, ethyl, propyl, n-butyl, iso-butyl, n-pentyl, neo-pentyl, n-hexyl group. Most preferably, R ¹⁰ and R ¹² are each independently hydrogen or a methyl group, wherein at least one group R ¹⁰ or R ^{12 is} a methyl group.

In a preferred embodiment Y ^{1 is} an oxygen or a sulfur atom, more preferably an oxygen atom.

The radical R ⁸ is preferably selected from a (C ₁ -C ₆ ) -alkyl group (particularly preferably a methyl group), a C ₂ -C ₆ -alkenyl group (in particular an allyl group), a hydroxy- (C ₂ - to C ₆ ) alkyl group or an optionally substituted benzyl group.

R ¹¹ is preferably a hydrogen atom.

Particularly preferably, the radicals R ⁹ , R ¹⁰ and R ^{12 are} a methyl group, the radical R ^{11 is} a hydrogen atom, Y ^{1 is} an oxygen or sulfur atom and the radical R ⁸ is selected from a (C ₁ -C ₆ ) Alkyl group (particularly preferably a methyl group), a C ₂ -C ₆ alkenyl group (in particular an allyl group), a hydroxy (C ₂ to C ₆ ) alkyl group or an optionally substituted Benzylgrup pe.

Preferably, the compounds according to formula II are selected from one or more compounds of the group of salts with physiologically acceptable counterion X ^- , which is formed from salts of
1,2-dihydro-1,3,4,6-tetramethyl-2-oxo-pyrimidiniums,
1,2-dihydro-1,3-diethyl-4,6-dimethyl-2-oxo-pyrimidiniums,
1,2-dihydro-1,3-dipropyl-4,6-dimethyl-2-oxo-pyrimidiniums,
1,2-dihydro-1,3-di (2-hydroxyethyl) -4,6-dimethyl-2-oxo-pyrimidiniums,
1,2-dihydro-1,3-diphenyl-4,6-dimethyl-2-oxo-pyrimidiniums,
1,2-dihydro-1,3,4-trimethyl-2-oxo-pyrimidiniums,
1,2-dihydro-1,3-diethyl-4-methyl-2-oxo-pyrimidiniums,
1,2-dihydro-1,3-dipropyl-4-methyl-2-oxo-pyrimidiniums,
1,2-dihydro-1,3-di (2-hydroxyethyl) -4-methyl-2-oxo-pyrimidiniums,
1,2-dihydro-1,3-diphenyl-4-methyl-2-oxo-pyrimidiniums,
1-allyl-1,2-dihydro-3,4,6-trimethyl-2-oxo-pyrimidiniums,
1,2-dihydro-1- (2-hydroxyethyl) -3,4,6-trimethyl-2-oxo-pyrimidiniums,
1,2-dihydro-1,3,4,6-tetramethyl-2-thioxo-pyrimidiniums,
1,2-dihydro-1,3-diethyl-4,6-dimethyl-2-thioxo-pyrimidiniums,
1,2-dihydro-1,3-dipropyl-4,6-dimethyl-2-thioxo-pyrimidiniums,
1,2-dihydro-1,3-di (2-hydroxyethyl) -4,6-dimethyl-2-thioxo-pyrimidiniums,
1,2-dihydro-1,3-diphenyl-4,6-dimethyl-2-thioxo-pyrimidiniums,
1,2-dihydro-1,3,4-trimethyl-2-thioxo-pyrimidiniums,
1,2-dihydro-1,3-diethyl-4-methyl-2-thioxo-pyrimidiniums,
1,2-dihydro-1,3-dipropyl-4-methyl-2-thioxo-pyrimidiniums,
1,2-dihydro-1,3-di (2-hydroxyethyl) -4-methyl-2-thioxo-pyrimidiniums,
1,2-dihydro-1,3-diphenyl-4-methyl-2-thioxo-pyrimidiniums,
1,2-dihydro-3,4-dimethyl-2-oxo-quinazolinium and
1,2-dihydro-3,4-dimethyl-2-thioxo-chinazoliniums.

Very particularly preferred compounds according to formula II are selected from one or more compounds of the group of salts with physiologically compatible counterion X ^- , which is formed from salts of
1,2-dihydro-1,3,4,6-tetramethyl-2-oxo-pyrimidiniums,
1,2-dihydro-1,3,4-trimethyl-2-oxo-pyrimidiniums,
1-allyl-1,2-diliydro-3,4,6-trimethyl-2-oxo-pyrimidiniums,
1,2-dihydro-1- (2-hydroxyethyl) -3,4,6-trimethyl-2-oxopyrimidinium and
1,2-dihydro-1,3,4,6-tetramethyl-2-thioxo-pyrimidiniums.

X ^- in formula (II) and in the above lists is preferably halide, benzenesulfonate, p-toluenesulfonate, C ₁ -C ₄ -alkanesulfonate, trifluoromethanesulfonate, perchlorate, 0.5 sulfate, hydrogensulfate, tetrafluoroborate, hexafluorophosphate or tetrachlorozincate. The anions chloride, bromide, iodide, hydrogensulfate or p-toluenesulfonate are particularly preferably used as X ^- .

worin

• – R¹³ und R¹⁴ stehen unabhängig voneinander für ein Wasserstoffatom, eine Hydroxygruppe, ein Halogenatom, eine Nitrogruppe, eine lineare oder zyklische C₁-C₆-Alkylgruppe, eine C₂-C₆-Alkenylgruppe, eine gegebenenfalls substituierte Arylgruppe, eine Cyanmethylgruppe, eine Cyanmethylcarbonylgruppe, eine gegebenenfalls substituierte Heteroarylguppe, eine Aryl-C₁-C₆-alkylgruppe, eine C₁-C₆-Hydroxyalkylgruppe, eine C₂-C₆-Polyhydroxyalkylgruppe, eine C₁-C₆-Alkoxygruppe, eine C₁-C₆-Alkoxycarbonylgruppe, eine C₁-C₆-Alkoxy-C₂-C₆-alkylgruppe, eine C₁-C₆-Sulfoalkylgruppe, eine C₁-C₆- Carboxyalkylgruppe, eine Gruppe R^XIR^XIIN-(CH₂)_r-, worin R^XI und R^XII stehen unabhängig voneinander für ein Wasserstoffatom, eine lineare oder zyklische C₁-C₆-Alkylgruppe, eine C₂-C₆-Alkenylgruppe, eine C₁-C₆-Hydroxyalkylgruppe oder eine Aryl-C₁-C₄-alkylgruppe, wobei R^XI und R^XII gemeinsam mit dem Stickstoffatom einen 5-, 6- oder 7-gliedrigen Ring bilden können und r steht für eine Zahl 0, 1, 2, 3 oder 4, wobei R¹³ und/oder R¹⁴ einen an den Ring des Restmoleküls ankondensierten, gegebenenfalls substituierten aromatischen oder heteroaromatischen, 5- oder 6-Ring bilden können
• – X² und X³ stehen unabhängig voneinander für ein Stickstoffatom oder eine Gruppe CR¹⁵, wobei R¹⁵ steht für ein Wasserstoffatom, eine Hydroxygruppe, ein Halogenatom, eine Nitrogruppe, eine lineare oder zyklische C₁-C₆-Alkylgruppe, eine C₂-C₆-Alkenylgruppe, eine gegebenenfalls substituierte Arylgruppe, eine Cyanmethylgruppe, eine Cyanmethylcarbonylgruppe, eine gegebenenfalls substituierte Heteroarylguppe, eine Aryl-C₁-C₆-alkylgruppe, eine C₁-C₆-Hydroxyalkylgruppe, eine C₂-C₆-Polyhydroxyalkylgruppe, eine C₁-C₆-Alkoxygruppe, eine C₁-C₆-Alkoxycarbonylgruppe, eine C₁-C₆-Alkoxy-C₂-C₆-alkylgruppe, eine C₁-C₆-Sulfoalkylgruppe, eine C₁-C₆-Carboxyalkylgruppe und eine Gruppe R^XIIIR^XIVN-(CH₂)_t-, worin R^XIII und R^XIV stehen unabhängig voneinander für ein Wasserstoffatom, eine lineare oder zyklische C₁-C₆-Alkylgruppe, eine C₂-C₆-Alkenylgruppe, eine C₁-C₆-Hydroxyalkylgruppe oder eine Aryl-C₁-C₄-alkylgruppe, wobei R^XI und R^XII gemeinsam mit dem Stickstoffatom einen 5-, 6- oder 7-gliedrigen Ring bilden können und t steht für eine Zahl 0, 1, 2, 3 oder 4, wobei mindestens einer der Substituenten X² und X³ zusammen mit dem Restmolekül einen ankondensierten gegebenenfalls substituierten aromatischen 5- oder 6-Ring bilden kann,
• – X⁴ steht für ein Sauerstoffatom, ein Schwefelatom, einer Vinylengruppe oder eine Gruppe N-H, wobei die beiden letztgenannten Gruppen unabhängig voneinander gegebenenfalls mit einer linearen oder zyklischen C₁-C₆-Alkylgruppe, einer C₂-C₆-Alkenylgruppe, einer gegebenenfalls substituierten Arylgruppe, einer gegebenenfalls substituierten Heteroarylguppe, einer Aryl-C₁-C₆-alkylgruppe, einer C₂-C₆-Hydroxyalkylgruppe, einer C₂- C₆-Polyhydroxyalkylgruppe, einer C₁-C₆-Alkoxy-C₂-C₆-alkylgruppe, einer C₁-C₆-Sulfoalkylgruppe, einer C₁-C₆-Carboxyalkylgruppe, einer Gruppe R^XIIIR^XIVN-(CH₂)_u- steht, worin R^XIII und R^XIV stehen unabhängig voneinander für ein Wasserstoffatom, eine lineare oder zyklische C₁-C₆-Alkylgruppe, eine C₂-C₆-Alkenylgruppe, eine C₁-C₆-Hydroxyalkylgruppe oder eine Aryl-C₁-C₄-alkylgruppe, wobei R^XII und R^XIII gemeinsam mit dem Stickstoffatom einen 5-, 6- oder 7-gliedrigen Ring bilden können und u steht für eine Zahl 0, 1, 2, 3 oder 4, substituiert sein können,

mit der Maßgabe, daß, wenn X⁴ für eine Vinylengruppe steht, mindestens eine der Gruppen X² oder X³ ein Stickstoffatom bedeutet.The radical Het according to formula (III) is preferably the molecule fragment of the formula (IV)

wherein

• R ¹³ and R ¹⁴ independently of one another represent a hydrogen atom, a hydroxy group, a halogen atom, a nitro group, a linear or cyclic C ₁ -C ₆ -alkyl group, a C ₂ -C ₆ -alkenyl group, an optionally substituted aryl group, a cyanomethyl group , a cyanomethylcarbonyl group, an optionally substituted heteroaryl group, an aryl-C ₁ -C ₆ -alkyl group, a C ₁ -C ₆ -hydroxyalkyl group, a C ₂ -C ₆ -polyhydroxyalkyl group, a C ₁ -C ₆ -alkoxy group, a C ₁ -C ₆ alkoxycarbonyl group, a C ₁ -C ₆ alkoxy C ₂ -C ₆ alkyl group, a C ₁ -C ₆ sulfoalkyl group, a C ₁ -C ₆ carboxyalkyl group, a group R ^XI R ^XII N- ( CH ₂ ) _r -, wherein R ^XI and R ^XII independently represent a hydrogen atom, a linear or cyclic C ₁ -C ₆ alkyl group, a C ₂ -C ₆ alkenyl group, a C ₁ -C ₆ hydroxyalkyl group or a Aryl-C ₁ -C ₄ -alkyl group, wherein R ^XI and R ^XII together with the nitrogen atom is a 5-, 6- or 7-membered en can form a ring and r stands for a number 0, 1, 2, 3 or 4, wherein R ¹³ and / or R ^{14 may form} a fused to the ring of the remainder of the molecule, optionally substituted aromatic or heteroaromatic, 5- or 6-ring
• - X ² and X ³ independently represent a nitrogen atom or a group CR ¹⁵ , wherein R ¹⁵ represents a hydrogen atom, a hydroxy group, a halogen atom, a nitro group, a linear or cyclic C ₁ -C ₆ alkyl group, a C ₂ C ₆ alkenyl group, an optionally substituted aryl group, a cyanomethyl group, a cyanomethylcarbonyl group, an optionally substituted heteroaryl group, an aryl-C ₁ -C ₆ alkyl group, a C ₁ -C ₆ hydroxyalkyl group, a C ₂ -C ₆ polyhydroxyalkyl group , a C ₁ -C ₆ alkoxy group, a C ₁ -C ₆ alkoxycarbonyl group, a C ₁ -C ₆ alkoxy C ₂ -C ₆ alkyl group, a C ₁ -C ₆ sulfoalkyl group, a C ₁ -C _6- carboxyalkyl group and a group R ^XIII R ^XIV N- (CH ₂ ) _t -, wherein R ^XIII and R ^XIV independently represent a hydrogen atom, a linear or cyclic C ₁ -C ₆ alkyl group, a C ₂ -C ₆ Alkenyl group, a C ₁ -C ₆ hydroxyalkyl group or an aryl C ₁ -C ₄ alkyl group, wherein R ^XI u nd R ^XII together with the nitrogen atom can form a 5-, 6- or 7-membered ring and t is a number 0, 1, 2, 3 or 4, wherein at least one of the substituents X ² and X ³ together with the remainder molecule can form a fused optionally substituted aromatic 5- or 6-membered ring,
• - X ⁴ represents an oxygen atom, a sulfur atom, a vinylene group or a group NH, the latter two groups independently of one another optionally with a linear or cyclic C ₁ -C ₆ alkyl group, a C ₂ -C ₆ alkenyl group, optionally substituted aryl group, an optionally substituted heteroaryl group, an aryl-C ₁ -C ₆ alkyl group, a C ₂ -C ₆ hydroxyalkyl group, a C ₂ - C ₆ -polyhydroxyalkyl group, a C ₁ -C ₆ -alkoxy-C ₂ -C ₆ -alkyl group, a C ₁ -C ₆ sulfoalkyl group, a C ₁ -C ₆ carboxyalkyl group, a group R ^XIII R ^XIV N- (CH ₂ ) _u -, wherein R ^XIII and R ^XIV independently represent a hydrogen atom , a linear or cyclic C ₁ -C ₆ -alkyl group, a C ₂ -C ₆ -alkenyl group, a C ₁ -C ₆ -hydroxyalkyl group or an aryl-C ₁ -C ₄ -alkyl group, wherein R ^XII and R ^XIII together with the nitrogen atom can form a 5-, 6- or 7-membered ring and u is ei ne number 0, 1, 2, 3 or 4, may be substituted,

with the proviso that when X ^{4 is} a vinylene group, at least one of X ² or X ^{3 represents} a nitrogen atom.

The bond of the heterocyclic ring according to formula (I) to the molecule fragment -X ¹ -CH ₂ -C≡N to give the compound according to formula (III) according to the invention takes place at the ring of the heterocycle and replaces a hydrogen atom bound to this ring. Consequently, it is imperative that the substituents R ¹³ , R ¹⁴ , X ² , X ³ and X ⁴ must be chosen such that at least one of these substituents allows a corresponding bond formation. Thus, it is imperative that at least one of R ¹³ or R ^{14 form} the bond to the molecular fragment -X ¹ -CH ₂ -C≡N when X ^{4 is} an oxygen atom or a sulfur atom and X ² and X ^{3 represent} a nitrogen atom.

The radical Het according to formula (IV) is particularly preferably derived from the heteroaromatics furan, thiophene, pyrrole, isoxazole, isothiazole, imidazole, oxazole, thiazole, pyridine, pyridazine, pyrimidine, pyrazine, 1,2,3-triazine, 1,2 , 4-triazine, 1,3,5-triazine, benzopyrrole, benzofuran, benzothiophene, benzimidazole, benzoxazole, indazole, benzoisoxazole, benzoisothiazole, indole, quinoline, isoquinoline, cinnoline, phthalazine, quinazoline, quinoxaline, acridine, benzoquinoline, benzoisoquinoline, benzothiazole , Phenazine, benzocinnoline, benzoquinazoline, benzoquinoxaline, phenoxazine, phenothiazine, nephthyridine, phenanthroline, indolizine, quinolizine, carboline, purine, pteridine and coumarin, wherein the aforementioned heteroaromatic compounds having at least one group selected from a halogen atom, a nitro group, a thio group, a thio - (C ₁ -C ₆ ) -alkyl group, a heteroaryl group, an aryl group, a (C ₁ -C ₆ ) -alkyl group, a (C ₁ -C ₆ ) -alkoxy group, a hydroxy group, a (C ₂ -C ₆ ) -Hydroxyalkylgrup pe, a (C ₂ -C ₆ ) -polyhydroxyalkyl group, a (C ₁ -C ₆ ) -alkoxyl (C ₁ -C ₆ ) -alkyl group, an aryl (C ₁ -C ₆ ) -alkyl group, an amino group, a (C ₁ -C ₆ ) -monoalkylamino group, a (C ₁ -C ₆ ) -dialkylamino group, a dialkylaminoalkyl group - (CH ₂ ) _n -NR'R '', wherein n is an integer of 2 and 6, and R ' and R "independently represent a linear or branched alkyl group, which may optionally together form a ring, may be substituted.

Preferably, the compounds according to formula (III) are selected from the group consisting of 2- (2-furoyl) -acetonitrile, 2- (5-bromo-2-furoyl) -acetonitrile, 2- (5-methyl-2-trifluoromethyl) 3-furoyl) -acetonitrile, 3- (2,5-dimethyl-3-furyl) -3-oxopropanitrile, 2- (2-thenoyl) -acetonitrile, 2- (3-thenoyl) -acetonitrile, 2- (5- Fluoro-2-thenoyl) -acetonitrile, 2- (5-chloro-2-thenoyl) -acetonitrile, 2- (5-bromo-2-thenoyl) -acetonitrile, 2- (5-methyl-2-thenoyl) -acetonitrile , 2- (2,5-Dimethylpyrrole-3-oyl) -acetonitrile, 2- (1,2,5-trimethylpyrrol-3-oyl) -acetonitrile, 1H-benzimidazol-2-ylacetonitrile, 1H-benzothiazol-2-ylacetonitrile , 2- (pyrid-2-yl) -acetonitrile, 2,6-bis (cyanomethyl) -pyridine, 2- (indol-3-oyl) -acetonitrile, 2- (2-methyl-indol-3-oyl) - acetonitrile, 8-cyanoacetyl-7-methoxy-4-methylcoumarin, 2- (2-isopropyl-5,6-benzoquinolin-4-oyl) -acetonitrile, 2- (2-phenyl-5,6-benzoquinolin-4-oyl ) -acetonitrile, 2- (quinoxa lin-2-yl) -acetonitrile, 2- (cumarone-2-yl) -acetonitrile, 6,7-dichloro-5- (cyanoacetyl) -2,3-dihydro-1-benzofuran-2-carboxylic acid tert. butyl ester, 2- (6-hydroxy-4,7-dimethoxy-1-benzofuran-5-oyl) -acetonitrile and 2- (1-phenyl-1,4-dihydrothiochromeno [4,3-c] pyrazole-3-oyl ) acetonitrile. Particularly preferred is 1H-benzimidazol-2-ylacetonitrile [2- (cyanomethyl) benzimidazole].

In a further embodiment it may be advantageous to extend the color spectrum, the inventive compositions in addition to at least one compound according to formula (I) as a component A and at least one compound of component B at least one add further compound as component C. The connection of Component C is selected from at least one reactive carbonyl compound, that of compounds of the formula (I) are different.

• a) von Aminen und deren Derivate unter Bildung von Iminen oder Oximen als Additionsverbindung
• b) von Alkoholen unter Bildung von Acetalen oder Ketalen als Additionsverbindung
• c) von Wasser unter Bildung von Hydraten als Additionsverbindung (Komponente C leitet sich in diesem Fall c) von einem Aldehyd ab)

an das Kohlenstoffatom der Carbonylgruppe der reaktiven Carbonylverbindung.Reactive carbonyl compounds as component C according to the invention have at least one carbonyl group as a reactive group which reacts with the CH-acidic compound of component B to form a carbon-carbon bond. Preferred reactive carbonyl compounds are aldehydes and ketones, especially aromatic aldehydes. Furthermore, according to the invention, those compounds are also usable as component C in which the reactive carbonyl group is derivatized or masked such that the reactivity of the carbon atom of the derivatized carbonyl group with respect to the CH-acidic compounds of component B is always present. These derivatives are preferably addition compounds

• a) amines and derivatives thereof to form imines or oximes as addition compound
• b) of alcohols to form acetals or ketals as addition compound
• c) of water with formation of hydrates as addition compound (component C is derived in this case c) from an aldehyde)

to the carbon atom of the carbonyl group of the reactive carbonyl compound.

Preferred reactive carbonyl compounds of component C are selected from the group consisting of benzaldehyde and its derivatives, naphthaldehyde and its derivatives, cinnamaldehyde and its derivatives, 2,3,6,7-tetrahydro-1H, 5H-benzo [ij] quinolizine-9 carboxaldehyde, 2,3,6,7-tetrahydro-8-hydroxy-1H, 5H-benzo [ij] quinolizine-9-carboxaldehyde, N-ethylcarbazole-3-aldehyde, 2-formylmethylene-1,3,3-trimethylindoline (Fischer's aldehyde or tribasic aldehyde),
2-indolealdehyde, 3-indolealdehyde, 1-methylindole-3-aldehyde, 2-methylindole-3-aldehyde, 2- (1 ', 3', 3'-trimethyl-2-indolinylidene) -acetaldehyde, 1-methylpyrrole-2 aldehyde, 4-pyridine aldehyde, 2-pyridine aldehyde, 3-pyridine aldehyde, pyridoxal, antipyrine-4-aldehyde, furfural, 5-nitrofurfural, 2-thenoyl trifluoroacetone, chromone-3-aldehyde, 3- (5'-nitro -2'-furyl) -acrolein, 3- (2'-furyl) -acrolein and imidazole-2-aldehyde, 5- (4-dimethylaminophenyl) -penta-2,4-dienal, 5- (4-diethylaminophenyl) -penta- 2,4-dienal, 5- (4-methoxyphenyl) penta-2,4-dienal, 5- (3,4-dimethoxyphenyl) penta-2,4-dienal, 5- (2,4-dimethoxyphenyl) penta-2 , 4-dienal, 5- (4-piperidinophenyl) penta-2,4-dienal, 5- (4-morpholinophenyl) penta-2,4-dienal, 5- (4-pyrrolidinophenyl) penta-2,4-dienal, 5- (4-dimethylamino-1-naphthyl) penta-3,5-dienal,
9-methyl-3-carbazolaldehyde, 9-ethyl-3-carbazolaldehyde, 3-acetylcarbazole, 3,6-diacetyl-9-ethylcarbazole, 3-acetyl-9-methylcarbazole, 1,4-dimethyl-3-carbazolaldehyde, 1, 4,9-trimethyl-3-carbazolaldehyde, 6-nitropiperonal, 2-nitropiperonal, 5-nitrovanillin, 2,5-dinitrosalicylaldehyde, 5-bromo-3-nitrosalicylaldehyde, 3-nitro-4-formylbenzenesulfonic acid, 4-formyl-1 methylpyridinium, 2-formyl-1-methylpyridinium, 4-formyl-1-ethylpyridinium, 2-formyl-1-ethylpyridinium, 4-formyl-1-benzylpyridinium, 2-formyl-1-benzylpyridinium, 4- Formyl-1,2-dimethylpyridinium, 4-formyl-1,3-dimethylpyridinium, 4-formyl-1-methyl-quinolinium, 2-formyl-1-methyl-quinolinium, 5-formyl-1-methyl-quinolinium, 6-formyl 1-methylquinolinium, 7-formyl-1-methylquinolinium, 8-formyl-1-methylquinolinium, 5-formyl-1-ethylquinolinium, 6-formyl-1-ethylquinolinium, 7-formyl-1-ethylquinolinium , 8-formyl-1-ethylquinolinium, 5-formyl-1-benzylquinolinium, 6-formyl-1-benzylquinolinium, 7-formyl-1-benzylquinolinium, 8-formyl-1-b enzyl-quinolinium, 5-formyl-1-allyl-quinolinium, 6-formyl-1-allyl-quinolinium, 7-formyl-1-allyl-quinolinium and 8-formyl-1-allyl-quinolinium-benzenesulfonate, p-toluenesulfonate, methanesulfonate, perchlorate , sulfate, chloride, bromide, iodide, tetrachlorozincate, methylsulfate, trifluoromethanesulfonate, tetrafluoroborate,
Isatin, 1-methyl-isatin, 1-allyl-isatin, 1-hydroxymethyl-isatin, 5-chloro-isatin, 5-methoxy-isatin, 5-nitro-isatin, 6-nitro-isatin, 5-sulfo-isatin, 5- Carboxy-isatin, quinisatin, 1-methyl-quinisatin, and any mixtures of the above compounds.

worin

• – R^1*, R^2* und R^3* stehen unabhängig voneinander für ein Wasserstoffatom, ein Halogenatom, eine C₁-C₆-Alkylgruppe, eine Hydroxygruppe, eine C₁-C₆-Alkoxygruppe, eine C₁-C₆-Dialkylaminogruppe, eine Di(C₂-C₆-hydroxyalkyl)aminogruppe, eine Di(C₁-C₆-alkoxy-C₁-C₆-alkyl)aminoguppe, eine C₁-C₆-Hydroxyalkyloxygruppe, eine Sulfonylgruppe, eine Carboxygruppe, eine Sulfonsäuregruppe, eine Sulfonamidogruppe, eine Sulfonamidgruppe, Carbamoylgruppe, eine C₂-C₆-Acylgruppe oder eine Nitrogruppe,
• – Z' steht für eine direkte Bindung oder eine Vinylengruppe,
• – R^4* und R^5* stehen für ein Wasserstoffatom oder bilden gemeinsam, zusammen mit dem Restmolekül einen 5- oder 6-gliederigen aromatischen oder aliphatischen Ring.

Benzaldehyde, cinnamaldehyde and naphthaldehyde and their derivatives, in particular with one or more hydroxyl, alkoxy or amino substituents, are used with particular preference as the reactive carbonyl compound of component C in the agents according to the invention. Again, the compounds according to formula (Ca-1) are preferred,

wherein

• R ^{1 *} , R ^{2 *} and R ^{3 *} independently of one another represent a hydrogen atom, a halogen atom, a C ₁ -C ₆ -alkyl group, a hydroxy group, a C ₁ -C ₆ -alkoxy group, a C ₁ -C ₆ - Dialkylamino group, di (C ₂ -C ₆ hydroxyalkyl) amino group, di (C ₁ -C ₆ alkoxy-C ₁ -C ₆ alkyl) amino group, C ₁ -C ₆ hydroxyalkyloxy group, sulfonyl group, carboxy group , a sulfonic acid group, a sulfonamido group, a sulfonamide group, carbamoyl group, a C ₂ -C ₆ acyl group or a nitro group,
• Z 'is a direct bond or a vinylene group,
• - R ^{4 *} and R ^{5 *} stand for a hydrogen atom or together form, together with the remainder of the molecule, a 5- or 6-membered aromatic or aliphatic ring.

The Derivatives of benzaldehydes, naphthaldehydes or cinnamaldehydes of reactive carbonyl compound according to component C are particularly preferably selected from at least one compound the group 4-hydroxy-3-methoxybenzaldehyde, 3,5-dimethoxy-4-hydroxybenzaldehyde, 4-hydroxy-1-naphthaldehyde, 4-hydroxy-2-methoxybenzaldehyde, 3,4-dihydroxy-5-methoxybenzaldehyde, 3,4,5-trihydroxybenzaldehyde, 3,5-dibromo-4-hydroxybenzaldehyde, 4-hydroxy-3-nitrobenzaldehyde, 3-bromo-4-hydroxybenzaldehyde, 4-hydroxy-3-methylbenzaldehyde, 3,5-dimethyl-4-hydroxybenzaldehyde, 5-bromo-4-hydroxy-3-methoxybenzaldehyde, 4-diethylamino-2-hydroxybenzaldehyde, 4-dimethylamino-2-methoxybenzaldehyde, 2-methoxybenzaldehyde, 3-methoxybenzaldehyde, 4-methoxybenzaldehyde, 2-ethoxybenzaldehyde, 3-ethoxybenzaldehyde, 4-ethoxybenzaldehyde, 4-hydroxy-2,3-dimethoxybenzaldehyde, 4-hydroxy-2,5-dimethoxybenzaldehyde, 4-hydroxy-2,6-dimethoxybenzaldehyde, 4-hydroxy-2-methylbenzaldehyde, 4-hydroxy-2,3-dimethylbenzaldehyde, 4-hydroxy-2,5-dimethylbenzaldehyde, 4-hydroxy-2,6-dimethylbenzaldehyde, 3,5-diethoxy-4-hydroxybenzaldehyde, 2,6-diethoxy-4-hydroxybenzaldehyde, 3-hydroxy-4-methoxybenzaldehyde, 2-hydroxy-4-methoxybenzaldehyde, 2-ethoxy-4-hydroxybenzaldehyde, 3-ethoxy-4-hydroxy-benzaldehyde, 4-ethoxy-2-hydroxybenzaldehyde, 4-ethoxy-3-hydroxybenzaldehyde, 2,3-dimethoxybenzaldehyde 2,4-dimethoxybenzaldehyde, 2,5-dimethoxybenzaldehyde, 2,6-dimethoxybenzaldehyde, 3,4-dimethoxybenzaldehyde, 3,5-dimethoxybenzaldehyde, 2,3,4-trimethoxybenzaldehyde, 2,3,5-trimethoxybenzaldehyde, 2,3,6-trimethoxybenzaldehyde, 2,4,6-trimethoxybenzaldehyde, 2,4,5-trimethoxybenzaldehyde, 2,5,6-trimethoxybenzaldehyde, 2-hydroxybenzaldehyde, 3-hydroxybenzaldehyde, 4-hydroxybenzaldehyde, 2,3-dihydroxybenzaldehyde, 2,4-dihydroxybenzaldehyde, 2,4-dihydroxy-3-methylbenzaldehyde, 2,4-dihydroxy-5-methylbenzaldehyde, 2,4-dihydroxy-6-methyl-benzaldehyde, 2,4-dihydroxy-3-methoxybenzaldehyde, 2,4-dihydroxy-5-methoxybenzaldehyde, 2,4-dihydroxy-6-methoxy-benzaldehyde, 2,5-dihydroxybenzaldehyde, 2,6-dihydroxybenzaldehyde, 3,4-dihydroxybenzaldehyde, 3,4-dihydroxy-2-methylbenzaldehyde, 3,4-dihydroxy-5-methyl-benzaldehyde, 3,4-dihydroxy-6-methylbenzaldehyde, 3,4-dihydroxy-2-methoxybenzaldehyde, 3,5-dihydroxybenzaldehyde, 2,3,4-trihydroxybenzaldehyde, 2,3,5-trihydroxybenzaldehyde, 2,3,6-trihydroxybenzaldehyde, 2,4,6-trihydroxybenzaldehyde, 2,4,5-trihydroxybenzaldehyde, 2,5,6-trihydroxybenzaldehyde, 4-dimethylaminobenzaldehyde, 4-diethylaminobenzaldehyde, 4-dimethylamino-2-hydroxybenzaldehyde, 4-pyrrolidinobenzaldehyde, 4-morpholinobenzaldehyde, 2-morpholinobenzaldehyde, 4-piperidinobenzaldehyde, 3,5-dichloro-4-hydroxybenzaldehyde, 4-hydroxy-3,5-diiodobenzaldehyde, 3-chloro-4-hydroxybenzaldehyde, 5-chloro-3,4-dihydroxybenzaldehyde, 5-bromo-3,4-dihydroxybenzaldehyde, 3-chloro-4-hydroxy-5-methoxybenzaldehyde, 4-hydroxy-3-iodo-5-methoxybenzaldehyde, 2-methoxy-1-naphthaldehyde, 4-methoxy-1-naphthaldehyde, 2-hydroxy-1-naphthaldehyde, 2,4-dihydroxy-1-naphthaldehyde, 4-hydroxy-3-methoxy-1-naphthaldehyde, 2-hydroxy-4-methoxy-1-naphthaldehyde, 3-hydroxy-4-methoxy-1-naphthaldehyde, 2,4-dimethoxy-1-naphthaldehyde, 3,4-dimethoxy-1-naphthaldehyde, 4-dimethylamino-1-naphthaldehyde, 3-hydroxy-4-nitrobenzaldehyde, 2-hydroxy-3-methoxy-5-nitrobenzaldehyde, 5-nitrovanillin, 2,5-dinitrosalicylaldehyde, 5-bromo-3-nitrosalicylaldehyde, 2-dimethylaminobenzaldehyde, 2-chloro-4-dimethylaminobenzaldehyde, 4-dimethylamino-2-methylbenzaldehyde, 4-diethylamino-cinnamaldehyde, 4-dibutylaminobenzaldehyde, 3-allyl-4-hydroxybenzaldehyde, 3-allyl-4-hydroxy-5-methoxybenzaldehyde, 3-allyl-4-hydroxy-5-methylbenzaldehyde, 3-allyl-5-bromo-4-hydroxybenzaldehyde, 3,5-diallyl-4-hydroxybenzaldehyde, 3-allyl-4-hydroxy-5-formylbenzaldehyde (5-allyl-4-hydroxyisophthalaldehyde) and piperonal. These are too at the same time particularly preferred representatives of component C, from which at least one compound as component C in the agent according to the invention may be included.

In a further embodiment contains the colorant additionally at least one reaction product (hereinafter referred to as the reaction product RP) from a compound of formula I and a compound of component B as a direct dye. Such reaction products RP can z. B. by heating the two reactants in aqueous neutral to slightly alkaline medium, wherein the reaction products RP either precipitate out of solution as a solid or by evaporation of the solution be isolated from it. There is also the possibility of the reaction products analogously to the literature procedure in K.Z. Gadella et al., Bulletin of the National Research Center (Egypt), 1993, 18 (3), 151-162 or Baumann, H., et al., J. Liebigs Ann. Chem., 1968, 717, 124-136.

to Synthesis of the reaction products RP can be molar ratios of component B to the compound of formula I from about 1: 1 to about 1: 2 be useful.

worin die Reste R1, R2, R3, R8, R9, R11, Y und X^– wie in den Formeln (I) und (II) definiert sind. In Formel (V) steht R12 für ein Wasserstoffatom oder eine C₁-C₆-Alkylgruppe (bevorzugt für ein Wasserstoffatom oder eine Methylgruppe). Dabei ist es wiederum besonders bevorzugt, wenn R11 für ein Wasserstoffatom steht.Particularly preferred reaction products RP are selected from compounds of the formulas (V), (VI) and / or (VII),

wherein the radicals R1, R2, R3, R8, R9, R11, Y and X ^- are as defined in formulas (I) and (II). In formula (V), R 12 represents a hydrogen atom or a C ₁ -C ₆ alkyl group (preferably a hydrogen atom or a methyl group). In this case, it is again particularly preferred if R 11 is a hydrogen atom.

The radicals R1, R2, R3, R8, R9, R11, Y and X ^- and the definitions mentioned under the under the other embodiments of formulas (I) and (II) apply.

The above-mentioned compounds of the formula I, the compounds component B, component C and the reaction products RP, when used, preferably in an amount each from 0.03 to 65 mmol, in particular from 1 to 40 mmol, based on 100 g of the total colorant, used.

In addition, the agents according to the invention at least one developer component and optionally at least contain a coupler component as oxidation dye precursors.

wobei

• – G¹ steht für ein Wasserstoffatom, einen C₁- bis C₄-Alkylrest, einen C₁- bis C₄-Monohydroxyalkylrest, einen C₂- bis C₄-Polyhydroxyalkylrest, einen (C₁- bis C₄)-Alkoxy-(C₁- bis C₄)-alkylrest, einen 4'-Aminophenylrest oder einen C₁- bis C₄-Alkylrest, der mit einer stickstoffhaltigen Gruppe, einem Phenyl- oder einem 4'-Aminophenylrest substituiert ist;
• – G² steht für ein Wasserstoffatom, einen C₁- bis C₄-Alkylrest, einen C₁- bis C₄-Monohydroxyalkylrest, einen C₂- bis C₄-Polyhydroxyalkylrest, einen (C₁- bis C₄)-Alkoxy-(C₁- bis C₄)-alkylrest oder einen C₁- bis C₄-Alkylrest, der mit einer stickstoffhaltigen Gruppe substituiert ist;
• – G³ steht für ein Wasserstoffatom, ein Halogenatom, wie ein Chlor-, Brom-, Iod- oder Fluoratom, einen C₁- bis C₄-Alkylrest, einen C₁- bis C₄-Monohydroxyalkylrest, einen C₂- bis C₄-Polyhydroxyalkylrest, einen C₁- bis C₄-Hydroxyalkoxyrest, einen C₁- bis C₄-Acetylaminoalkoxyrest, einen C₁- bis C₄- Mesylaminoalkoxyrest oder einen C₁- bis C₄-Carbamoylaminoalkoxyrest;
• – G⁴ steht für ein Wasserstoffatom, ein Halogenatom oder einen C₁- bis C₄-Alkylrest oder
• – wenn G³ und G⁴ in ortho-Stellung zueinander stehen, können sie gemeinsam eine verbrückende α,ω-Alkylendioxogruppe, wie beispielsweise eine Ethylendioxygruppe bilden.

It may be preferred according to the invention to use as the developer component a p-phenylenediamine derivative or one of its physiologically acceptable salts. Particular preference is given to p-phenylenediamine derivatives of the formula (E1)

in which

• G ¹ represents a hydrogen atom, a C ₁ to C ₄ alkyl radical, a C ₁ to C ₄ monohydroxyalkyl radical, a C ₂ to C ₄ polyhydroxyalkyl radical, a C ₁ to C ₄ alkoxy radical (C ₁ - to C ₄ ) -alkyl radical, a 4'-aminophenyl radical or a C ₁ - to 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 ₁ -C ₄ -monohydroxyalkyl radical, a C ₂ -C ₄ -polyhydroxyalkyl radical, a C ₁ -C ₄ -alkoxy radical (C ₁ - to C ₄ ) -alkyl radical or a C ₁ - to C ₄ -alkyl radical which is substituted by a nitrogen-containing group;
• G ³ represents a hydrogen atom, a halogen atom, such as a chlorine, bromine, iodine or fluorine atom, a C ₁ - to C ₄ -alkyl radical, a C ₁ - to C ₄ -monohydroxyalkyl radical, a C ₂ - to C ₄ -polyhydroxyalkyl, C ₁ - to C ₄ -hydroxyalkoxy, C ₁ - to C ₄ -acetylaminoalkoxy, C ₁ - to C ₄ -mesylaminoalkoxy or C ₁ - to C ₄ -carbamoylaminoalkoxy;
• - G ⁴ represents a hydrogen atom, a halogen atom or a C ₁ - to C ₄ -alkyl radical or
• When G ³ and G ⁴ are ortho to each other, they may together form a bridging α, ω-alkylenedioxy group, such as, for example, an ethylenedioxy group.

Especially 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 (β-hydroxyethyl) -p-phenylenediamine, 4-N, N-bis- (β-hydroxyethyl) -amino 2-methylaniline, 4-N, N-bis (β-hydroxyethyl) amino-2-chloroaniline, 2- (β-hydroxyethyl) -p-phenylenediamine, 2- (α, β-dihydroxyethyl) -p-phenylenediamine, 2-fluoro-p-phenylenediamine, 2-isopropyl-p-phenylenediamine, N- (β-hydroxypropyl) -p-phenylenediamine, 2-hydroxymethyl-p-phenylenediamine, N, N-dimethyl-3-methyl-p-phenylenediamine, N, N- (ethyl, β-hydroxyethyl) -p-phenylenediamine, N- (β, γ-dihydroxypropyl) -p-phenylenediamine, N- (4'-aminophenyl) -p-phenylenediamine, N-phenyl-p-phenylenediamine, 2- (β-hydroxyethyloxy) -p-phenylenediamine, 2- (β-Acetylaminoethyloxy) -p-phenylenediamine, N- (β-methoxyethyl) -p-phenylenediamine, N- (4-amino-3-methylphenyl) -N- [3- (1H -imidazol-1-yl) propyl] amine and 5,8-diaminobenzo-1,4-dioxane and their physiologically acceptable Salt.

Very particular according to the invention preferred p-phenylenediamine derivatives of the formula (E1) are p-phenylenediamine, p-toluenediamine, 2- (β-hydroxyethyl) -p-phenylenediamine, 2- (α, β-dihydroxyethyl) -p-phenylenediamine and N, N-bis (β-hydroxyethyl) -p-phenylenediamine.

It can continue according to the invention be preferred to use as a developer component compounds, which contain at least two aromatic nuclei which are reactive with amino and / or hydroxyl groups are substituted.

wobei:

• – Z¹ und Z² stehen unabhängig voneinander für einen Hydroxyl- oder NH₂-Rest, der gegebenenfalls durch einen C₁- bis C₄-Alkylrest, durch einen C₁- bis C₄-Hydroxyalkylrest und/oder durch eine Verbrückung Y substituiert ist oder der gegebenenfalls Teil eines verbrückenden Ringsystems ist,
• – die Verbrückung Y steht für eine Alkylengruppe mit 1 bis 14 Kohlenstoffatomen, wie beispielsweise eine lineare oder verzweigte Alkylenkette oder einen Alkylenring, die von einer oder mehreren stickstoffhaltigen Gruppen und/oder einem oder mehreren Heteroatomen wie Sauerstoff-, Schwefel- oder Stickstoffatomen unterbrochen oder beendet sein kann und eventuell durch einen oder mehrere Hydroxyl- oder C₁- bis C₈-Alkoxyreste substituiert sein kann, oder eine direkte Bindung,
• – G⁵ und G⁶ stehen unabhängig voneinander für ein Wasserstoff- oder Halogenatom, einen C₁- bis C₄-Alkylrest, einen C₁- bis C₄-Monohydroxyalkylrest, einen C₂- bis C₄-Polyhydroxyalkylrest, einen C₁- bis C₄-Aminoalkylrest oder eine direkte Verbindung zur Verbrückung Y,
• – G⁷, G⁸, G⁹, G¹⁰, G¹¹ und G¹² stehen unabhängig voneinander für ein Wasserstoffatom, eine direkte Bindung zur Verbrückung Y oder einen C₁- bis C₄-Alkylrest,

mit der Maßgabe, dass die Verbindungen der Formel (E2) nur eine Verbrückung Y pro Molekül enthalten.Among the binuclear developer components which can be used in the dyeing compositions according to the invention, mention may be made in particular of the compounds corresponding to the following formula (E2) and their physiologically tolerated salts:

in which:

• - Z ¹ and Z ² independently of one another are a hydroxyl or NH ₂ radical which is optionally substituted by a C ₁ - to C ₄ -alkyl radical, by a C ₁ - to C ₄ -hydroxyalkyl radical and / or by a bridge Y. or is optionally part of a bridging ring system,
• - The bridge Y is an alkylene group having 1 to 14 carbon atoms, such as a linear or branched alkylene chain or an alkylene ring interrupted or terminated by one or more nitrogen-containing groups and / or one or more heteroatoms such as oxygen, sulfur or nitrogen atoms may be and may be substituted by one or more hydroxyl or C ₁ - to C ₈ alkoxy, or a direct bond,
• G ⁵ and G ⁶ independently of one another are a hydrogen or halogen atom, a C ₁ - to C ₄ -alkyl radical, a C ₁ - to C ₄ -monohydroxyalkyl radical, a C ₂ - to C ₄ -polyhydroxyalkyl radical, a C ₁ - to C ₄ -aminoalkyl radical or a direct compound for bridging 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 - to C ₄ -alkyl radical,

with the proviso that the compounds of the formula (E2) contain only one bridge Y per molecule.

The used in formula (E2) substituents are analogous to the invention to the above statements Are defined.

preferred binuclear developer components of the formula (E2) are in particular: N, N'-bis (β-hydroxyethyl) -N, N'-bis- (4'-aminophenyl) -1,3-diamino-propan-2-ol, N, N'-bis (β-hydroxyethyl) -N, N'-bis- (4'-aminophenyl) ethylenediamine, N, N'-bis (4-aminophenyl) tetramethylenediamine, N, N'-bis (β-hydroxyethyl) -N, N'-bis (4-aminophenyl) tetramethylenediamine, N, N'-bis (4-methylaminophenyl) tetramethylenediamine, N, N'-diethyl-N, N'-bis (4'-amino-3'-methylphenyl) ethylenediamine, bis (2-hydroxybenzyl) 5-aminophenyl) methane, N, N'-bis (4'-aminophenyl) -1,4-diazacycloheptane, N, N'-bis (2-hydroxy-5-aminobenzyl) piperazine, N- (4'-aminophenyl) -p-phenylenediamine and 1,10-bis (2 ', 5'-diaminophenyl) -1,4,7,10-tetraoxadecane and their physiologically tolerable Salts.

All particularly preferred binuclear developer components of the formula (E2) are N, N'-bis (β-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 its physiologically acceptable salts.

wobei:

• – G¹³ steht für ein Wasserstoffatom, ein Halogenatom, einen C₁- bis C₄-Alkylrest, einen C₁- bis C₄-Monohydroxyalkylrest, einen C₂- bis C₄-Polyhydroxyalkylrest, einen (C₁- bis C₄)-Alkoxy(C₁- bis C₄)-alkylrest, einen C₁- bis C₄-Aminoalkylrest, einen Hydroxy-(C₁- bis C₄)-alkylaminorest, einen C₁- bis C₄-Hydroxyalkoxyrest, einen C₁- bis C₄-Hydroxyalkyl-(C₁-bis C₄)-aminoalkylrest oder einen (Di-C₁- bis C₄-Alkylamino)-(C₁- bis C₄)-alkylrest, und
• – G¹⁴ steht für ein Wasserstoff- oder Halogenatom, einen C₁- bis C₄-Alkylrest, einen C₁- bis C₄-Monohydroxyalkylrest, einen C₂- bis C₄-Polyhydroxyalkylrest, einen (C₁- bis C₄)-Alkoxy-(C₁- bis C₄)-alkylrest, einen C₁- bis C₄-Aminoalkylrest oder einen C₁- bis C₄-Cyanoalkylrest,
• – G¹⁵ steht für Wasserstoff, einen C₁- bis C₄-Alkylrest, einen C₁- bis C₄-Monohydroxyalkylrest, einen C₂- bis C₄-Polyhydroxyalkylrest, einen Phenylrest oder einen Benzylrest, und
• – G¹⁶ steht für Wasserstoff oder ein Halogenatom.

Furthermore, it may be preferred according to the invention to use as the developer component a p-aminophenol derivative or one of its physiologically tolerable salts. Particular preference is given to p-aminophenol derivatives of the formula (E3)

in which:

• - G ¹³ represents a hydrogen atom, a halogen atom, a C ₁ - to C ₄ alkyl, C ₁ - to C ₄ monohydroxyalkyl radical, a C ₂ - to C ₄ polyhydroxyalkyl radical, a (C ₁ - to C ₄₎ Alkoxy (C ₁ to C ₄ ) alkyl, C ₁ to C ₄ aminoalkyl, hydroxy (C ₁ to C ₄ ) alkylamino, C ₁ to C ₄ hydroxyalkoxy, C ₁ - to C ₄ -hydroxyalkyl- (C ₁ -C ₄ ) -aminoalkyl or a (di-C ₁ - to C ₄ -alkylamino) - (C ₁ - to C ₄ ) -alkyl, and
• - G ¹⁴ represents a hydrogen or halogen atom, a C ₁ - to C ₄ alkyl, C ₁ - to C ₄ monohydroxyalkyl radical, a C ₂ - to C ₄ polyhydroxyalkyl radical, a (C ₁ - to C ₄₎ Alkoxy (C ₁ to C ₄ ) alkyl, C ₁ to C ₄ aminoalkyl or C ₁ to C ₄ cyanoalkyl,
• G ¹⁵ is hydrogen, a C ₁ - to C ₄ -alkyl radical, a C ₁ - to C ₄ -monohydroxyalkyl radical, a C ₂ - to C ₄ -polyhydroxyalkyl radical, a phenyl radical or a benzyl radical, and
• - G ¹⁶ is hydrogen or a halogen atom.

The used in formula (E3) substituents are analogous to the invention to the above statements Are defined.

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- (β-hydroxyethoxy) phenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethyl-phenol, 4-amino-2-aminomethylphenol, 4-amino-2- (β-hydroxyethyl-aminomethyl) phenol, 4-amino-2- (α, β-dihydroxyethyl) -phenol, 4-amino-2-fluorophenol, 4-amino-2-chlorophenol, 4-amino-2,6-dichlorophenol, 4-amino-2- (diethylaminomethyl) -phenol as well as their physiologically tolerable Salts.

All particularly preferred compounds of the formula (E3) are p-aminophenol, 4-amino-3-methylphenol, 4-amino-2-aminomethylphenol, 4-amino-2- (α, β-dihydroxyethyl) -phenol and 4-amino-2- (diethylaminomethyl) -phenol.

Further For example, the developer component can be selected from o-aminophenol and its derivatives, such as 2-amino-4-methylphenol, 2-amino-5-methylphenol or 2-amino-4-chlorophenol.

Farther For example, the developer component may be selected from heterocyclic Developer components, such as the pyridine, pyrimidine, Pyrazole, pyrazole pyrimidine derivatives and their physiologically tolerable Salt.

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-amino-pyridine, 2,3-diamino-6-methoxy-pyridine, 2- (β-methoxyethyl) -amino 3-amino-6-methoxy-pyridine and 3,4-diamino-pyridine.

Preferred pyrimidine derivatives are in particular the compounds described in the German patent DE 2 359 399 , the Japanese Patent Application JP 02019576 A2 or in the laid-open specification 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-1-methylpyrazole, 4,5-diamino-1- (β-hydroxyethyl) pyrazole, 3,4-diaminopyrazole, 4,5-diamino-1- (4'-chlorobenzyl) pyrazole, 4,5-diamino-1,3-dimethylpyrazole, 4,5-diamino-3-methyl-1-phenylpyrazole, 4,5-diamino-1-methyl-3-phenylpyrazole, 4-amino-1,3 dimethyl-5-hydrazinopyrazole, 1-benzyl-4,5-diamino-3-methylpyrazole, 4,5-diamino-3-tert-butyl-1-methylpyrazole, 4,5-diamino-1-tert-butyl -3-me ethylpyrazole, 4,5-diamino-1- (β-hydroxyethyl) -3-methylpyrazole, 4,5-diamino-1-ethyl-3-methylpyrazole, 4,5-diamino-1-ethyl-3- (4'- methoxyphenyl) pyrazole, 4,5-diamino-1-ethyl-3-hydroxymethylpyrazole, 4,5-diamino-3-hydroxymethyl-1-methylpyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropylpyrazole, 4.5 Diamino-3-methyl-1-isopropylpyrazole, 4-amino-5- (β-aminoethyl) amino-1,3-dimethylpyrazole, 3,4,5-triaminopyrazole, 1-methyl-3,4,5-triaminopyrazole , 3,5-diamino-1-methyl-4-methylaminopyrazole and 3,5-diamino-4- (β-hydroxyethyl) amino-1-methylpyrazole.

wobei:

• – G¹⁷, G¹⁸, G¹⁹ und G²⁰ unabhängig voneinander stehen für ein Wasserstoffatom, einen C₁- bis C₄-Alkylrest, einen Aryl-Rest, einen C₁- bis C₄-Hydroxyalkylrest, einen C₂- bis C₄-Polyhydroxyalkylrest einen (C₁- bis C₄)-Alkoxy-(C₁- bis C₄)-alkylrest, einen C₁- bis C₄-Aminoalkylrest, der gegebenenfalls durch ein Acetyl-Ureid- oder einen Sulfonyl-Rest geschützt sein kann, einen (C₁- bis C₄)-Alkylamino-(C₁- bis C₄)-alkylrest, einen Di-[(C₁- bis C₄)-alkyl]-(C₁- bis C₄)-aminoalkylrest, wobei die Dialkyl-Reste gegebenenfalls einen Kohlenstoffzyklus oder einen Heterozyklus mit 5 oder 6 Kettengliedern bilden, einen C₁- bis C₄-Hydroxyalkyl- oder einen Di-(C₁- bis C₄)-[Hydroxyalkyl]-(C₁- bis C₄)-aminoalkylrest,
• – die X-Reste stehen unabhängig voneinander für ein Wasserstoffatom, einen C₁- bis C₄-Alkylrest, einen Aryl-Rest, einen C₁- bis C₄-Hydroxyalkylrest, einen C₂- bis C₄-Polyhydroxyalkylrest, einen C₁- bis C₄-Aminoalkylrest, einen (C₁- bis C₄)-Alkylamino-(C₁- bis C₄)-alkylrest, einen Di-[(C₁- bis C₄)alkyl]- (C₁- bis C₄)-aminoalkylrest, wobei die Dialkyl-Reste gegebenenfalls einen Kohlenstoffzyklus oder einen Heterozyklus mit 5 oder 6 Kettengliedern bilden, einen C₁- bis C₄-Hydroxyalkyl- oder einen Di-(C₁- bis C₄-hydroxyalkyl)-aminoalkylrest, einen Aminorest, einen C₁- bis C₄-Alkyl- oder Di-(C₁- bis C₄-hydroxyalkyl)-aminorest, ein Halogenatom, eine Carboxylsäuregruppe oder eine Sulfonsäuregruppe,
• – i hat den Wert 0, 1, 2 oder 3,
• – p hat den Wert 0 oder 1,
• – q hat den Wert 0 oder 1 und
• – n hat den Wert 0 oder 1, mit der Maßgabe, dass
• – die Summe aus p + q ungleich 0 ist,
• – wenn p + q gleich 2 ist, n den Wert 0 hat, und die Gruppen NG¹⁷G¹⁸ und NG¹⁹G²⁰ belegen die Positionen (2,3); (5,6); (6,7); (3,5) oder (3,7);
• – wenn p + q gleich 1 ist, n den Wert 1 hat, und die Gruppen NG¹⁷G¹⁸ (oder NG¹⁹G²⁰) und die Gruppe OH belegen die Positionen (2,3); (5,6); (6,7); (3,5) oder (3,7);

Preferred pyrazolopyrimidine derivatives are, in particular, the derivatives of the pyrazolo [1,5-a] pyrimidine of the following formula (E4) and their tautomeric forms, if a tautomeric equilibrium exists:

in which:

• - G ¹⁷ , G ¹⁸ , G ¹⁹ and G ²⁰ independently of one another represent a hydrogen atom, a C ₁ - to C ₄ -alkyl radical, an aryl radical, a C ₁ - to C ₄ -hydroxyalkyl radical, a C ₂ - to C ₄ -Polyhydroxyalkylrest a (C ₁ - to C ₄ ) alkoxy- (C ₁ - to C ₄ ) -alkyl radical, a C ₁ - to C ₄ -Aminoalkylrest, optionally protected by an acetyl-ureide or a sulfonyl radical may be a (C ₁ to C ₄ ) alkylamino (C ₁ to C ₄ ) alkyl radical, a di - [(C ₁ to C ₄ ) alkyl] - (C ₁ to C ₄ ) aminoalkyl radical, wherein the dialkyl radicals optionally form a carbon cycle or a heterocycle with 5 or 6 chain members, a C ₁ - to C ₄ -hydroxyalkyl- or a di- (C ₁ - to C ₄ ) - [hydroxyalkyl] - (C ₁ - to C ₄ ) aminoalkyl radical,
• - The X radicals independently of one another represent a hydrogen atom, a C ₁ - to C ₄ -alkyl radical, an aryl radical, a C ₁ - to C ₄ -hydroxyalkyl radical, a C ₂ - to C ₄ -polyhydroxyalkyl radical, a C ₁ - to C ₄ -aminoalkyl, a (C ₁ - to C ₄ ) -alkylamino- (C ₁ - to C ₄ ) -alkyl, a di - [(C ₁ - to C ₄ ) alkyl] - (C ₁ - bis C ₄ ) -aminoalkyl radical, wherein the dialkyl radicals optionally form a carbon cycle or a heterocycle having 5 or 6 chain members, a C ₁ - to C ₄ -hydroxyalkyl or a di- (C ₁ - to C ₄ -hydroxyalkyl) aminoalkyl radical , an amino radical, a C ₁ - to C ₄ -alkyl or di- (C ₁ - to C ₄ -hydroxyalkyl) -amino radical, a halogen atom, a carboxylic acid group or a sulfonic acid group,
• - i has the value 0, 1, 2 or 3,
• - p has the value 0 or 1,
• - q has the value 0 or 1 and
• - n has the value 0 or 1, with the proviso that
• The sum of p + q is not equal to 0,
• If p + q equals 2, n has the value 0, and the groups NG ¹⁷ G ¹⁸ and NG ¹⁹ G ²⁰ occupy the positions (2, 3); (5,6); (6,7); (3,5) or (3,7);
• When p + q is 1, n is 1, and the groups NG ¹⁷ G ¹⁸ (or NG ¹⁹ G ²⁰ ) and the group OH occupy the positions (2, 3); (5,6); (6,7); (3,5) or (3,7);

The used in formula (E4) substituents are analogous to the invention to the above statements Are defined.

When the pyrazolo [1,5-a] pyrimidine of the above formula (E4) contains a hydroxy group at one of the 2, 5 or 7 positions of the ring system, there is a tautomeric equilibrium represented, for example, in the following scheme:

• – Pyrazolo[1,5-a]pyrimidin-3,7-diamin;
• – 2,5-Dimethylpyrazolo[1,5-a]-pyrimidin-3,7-diamin;
• – Pyrazolo[1,5-a]pyrimidin-3,5-diamin;
• – 2,7-Dimethyl-pyrazolo[1,5-a]pyrimidin-3,5-diamin;
• – 3-Aminopyrazolo[1,5-a]pyrimidin-7-ol;
• – 3-Aminopyrazolo[1,5-a]pyrimidin-5-ol;
• – 2-(3-Aminopyrazolo[1,5-a]pyrimidin-7-ylamino)-ethanol;
• – 2-(7-Aminopyrazolo[1,5-a]pyrimidin-3-ylamino)-ethanol;
• – 2-[(3-Aminopyrazolo[1,5-a]pyrimidin-7-yl)-(2-hydroxy-ethyl)-amino]-ethanol;
• – 2-[(7-Aminopyrazolo[1,5-a]pyrimidin-3-yl)-(2-hydroxy-ethyl)-amino]-ethanol;
• – 5,6-Dimethylpyrazolo[1,5-a]pyrimidin-3,7-diamin;
• – 2,6-Dimethylpyrazolo[1,5-a]pyrimidin-3,7-diamin;
• – 3-Amino-7-dimethylamino-2,5-dimethylpyrazolo[1,5-a]pyrimidin;

sowie ihre physiologisch verträglichen Salze und ihre tautomeren Formen, wenn ein tautomeres Gleichgewicht vorhanden ist.In particular, among the pyrazolo [1,5-a] pyrimidines of the above formula (E4):

• - pyrazolo [1,5-a] pyrimidine-3,7-diamine;
• 2,5-dimethylpyrazolo [1,5-a] pyrimidine-3,7-diamine;
• - pyrazolo [1,5-a] pyrimidine-3,5-diamine;
• 2,7-dimethylpyrazolo [1,5-a] pyrimidine-3,5-diamine;
• 3-aminopyrazolo [1,5-a] pyrimidin-7-ol;
• 3-aminopyrazolo [1,5-a] pyrimidin-5-ol;
• 2- (3-aminopyrazolo [1,5-a] pyrimidin-7-ylamino) ethanol;
• - 2- (7-aminopyrazolo [1,5-a] pyrimidin-3-ylamino) ethanol;
• - 2 - [(3-aminopyrazolo [1,5-a] pyrimidin-7-yl) - (2-hydroxy-ethyl) -amino] -ethanol;
• - 2 - [(7-aminopyrazolo [1,5-a] pyrimidin-3-yl) - (2-hydroxy-ethyl) -amino] -ethanol;
• 5,6-dimethylpyrazolo [1,5-a] pyrimidine-3,7-diamine;
• - 2,6-dimethylpyrazolo [1,5-a] pyrimidine-3,7-diamine;
• 3-amino-7-dimethylamino-2,5-dimethylpyrazolo [1,5-a] pyrimidine;

and their physiologically acceptable salts and their tautomeric forms when tautomeric equilibrium is present.

The Pyrazolo [1,5-a] pyrimidines of the above formula (E4) can be used as described in the literature by cyclization starting from a Aminopyrazole or produced from hydrazine.

In a further preferred embodiment contain the colorants of the invention at least one coupler component.

When Coupler components are usually m-phenylenediamine derivatives, Naphthols, resorcinol and resorcinol derivatives, pyrazolones and m-aminophenol derivatives used. Particularly suitable coupling agents are 1-naphthol, 1,5-, 2,7- and 1,7-dihydroxynaphthalene, 5-amino-2-methylphenol, m-aminophenol, Resorcinol, resorcinol monomethyl ether, m-phenylenediamine, 1-phenyl-3-methyl-pyrazolone-5, 2,4-dichloro-3-aminophenol, 1,3-bis (2 ', 4'-diaminophenoxy) -propane, 2-chloro-resorcinol, 4-chloro-resorcinol, 2-chloro-6-methyl-3-aminophenol, 2-amino-3-hydroxypyridine, 2-methylresorcinol, 5-methylresorcinol and 2-methyl-4-chloro-5-aminophenol.

• – m-Aminophenol und dessen Derivate wie beispielsweise 5-Amino-2-methylphenol, N-Cyclopentyl-3-aminophenol, 3-Amino-2-chlor-6-methylphenol, 2-Hydroxy-4-aminophenoxyethanol, 2,6-Dimethyl-3-aminophenol, 3-Trifluoroacetylamino-2-chlor-6-methylphenol, 5-Amino-4-chlor-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)-benzol, 3-Ethylamino-4-methylphenol und 2,4-Dichlor-3-aminophenol,
• – o-Aminophenol und dessen Derivate,
• – m-Diaminobenzol und dessen Derivate wie beispielsweise 2,4-Diaminophenoxy-ethanol, 1,3-Bis-(2',4'-diaminophenoxy)-propan, 1-Methoxy-2-amino-4-(2'-hydroxyethylamino)benzol, 1,3-Bis-(2',4'-diaminophenyl)-propan, 2,6-Bis-(2'-hydroxyethylamino)-1-methylbenzol, 2-({3-[(2-Hydroxyethyl)amino]-4-methoxy-5-methylphenyl}amino)ethanol, 2-({3-[(2-Hydroxyethyl)amino]-2-methoxy-5-methylphenyl}amino)ethanol, 2-[3-Morpholin-4-ylphenyl)amino]ethanol, 3-Amino-4-(2-methoxyethoxy)-5-methylphenylamin und 1-Amino-3-bis-(2'-hydroxyethyl)-aminobenzol,
• – o-Diaminobenzol und dessen Derivate wie beispielsweise 3,4-Diaminobenzoesäure und 2,3-Diamino-1-methylbenzol,
• – Di- beziehungsweise Trihydroxybenzolderivate wie beispielsweise Resorcin, Resorcinmonomethylether, 2-Methylresorcin, 5-Methylresorcin, 2,5-Dimethylresorcin, 2-Chlorresorcin, 4-Chlorresorcin, Pyrogallol und 1,2,4-Trihydroxybenzol,
• – Pyridinderivate wie beispielsweise 2,6-Dihydroxypyridin, 2-Amino-3-hydroxypyridin, 2-Amino-5-chlor-3-hydroxypyridin, 3-Amino-2-methylamino-6-methoxypyridin, 2,6-Dihydroxy-3,4-dimethylpyridin, 2,6-Dihydroxy-4-methylpyridin, 2,6-Diaminopyridin, 2,3-Diamino-6-methoxypyridin und 3,5-Diamino-2,6-dimethoxypyridin,
• – Naphthalinderivate wie beispielsweise 1-Naphthol, 2-Methyl-1-naphthol, 2-Hydroxymethyl-1-naphthol, 2-Hydroxyethyl-1-naphthol, 1,5-Dihydroxynaphthalin, 1,6-Dihydroxynaphthalin, 1,7-Dihydroxynaphthalin, 1,8-Dihydroxynaphthalin, 2,7-Dihydroxynaphthalin und 2,3-Dihydroxynaphthalin,
• – Morpholinderivate wie beispielsweise 6-Hydroxybenzomorpholin und 6-Aminobenzomorpholin,
• – Chinoxalinderivate wie beispielsweise 6-Methyl-1,2,3,4-tetrahydrochinoxalin,
• – Pyrazolderivate wie beispielsweise 1-Phenyl-3-methylpyrazol-5-on,
• – Indolderivate wie beispielsweise 4-Hydroxyindol, 6-Hydroxyindol und 7-Hydroxyindol,
• – Pyrimidinderivate, wie beispielsweise 4,6-Diaminopyrimidin, 4-Amino-2,6-dihydroxypyrimidin, 2,4-Diamino-6-hydroxypyrimidin, 2,4,6-Trihydroxypyrimidin, 2-Amino-4-methylpyrimidin, 2-Amino-4-hydroxy-6-methylpyrimidin und 4,6-Dihydroxy-2-methylpyrimidin, oder
• – Methylendioxybenzolderivate wie beispielsweise 1-Hydroxy-3,4-methylendioxybenzol, 1-Amino-3,4-methylendioxybenzol und 1-(2'-Hydroxyethyl)-amino-3,4-methylendioxybenzol

sowie deren physiologisch verträglichen Salze.According to preferred coupler components 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-dimethyl 3-aminophenol, 3-trifluoroacetylamino-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 its derivatives such as 2,4-diaminophenoxy-ethanol, 1,3-bis (2 ', 4'-diaminophenoxy) propane, 1-methoxy-2-amino-4- (2'-hydroxyethylamino ) benzene, 1,3-bis (2 ', 4'-diaminophenyl) -propane, 2,6-bis (2'-hydroxyethylamino) -1-methylbenzene, 2 - ({3 - [(2-hydroxyethyl) amino] -4-methoxy-5-methylphenyl} amino) ethanol, 2 - ({3 - [(2-hydroxyethyl) amino] -2-methoxy-5-methylphenyl} amino) ethanol, 2- [3-morpholine-4 -ylphenyl) amino] ethanol, 3-amino-4- (2-methoxyethoxy) -5-methylphenylamine and 1-amino-3-bis (2'-hydroxyethyl) aminobenzene,
• O-diaminobenzene and its derivatives such as 3,4-diaminobenzoic acid and 2,3-diamino-1-methylbenzene,
• Di- or trihydroxybenzene derivatives such as resorcinol, resorcinol monomethyl ether, 2-methylresorcinol, 5-methylresorcinol, 2,5-dimethylresorcinol, 2-chlororesorcinol, 4-chlororesorcinol, pyrogallol and 1,2,4-trihydroxybenzene,
• Pyridine derivatives such as 2,6-dihydroxypyridine, 2-amino-3-hydroxypyridine, 2-amino-5-chloro-3-hydroxypyridine, 3-amino-2-methylamino-6-methoxypyridine, 2,6-dihydroxy-3, 4-dimethylpyridine, 2,6-dihydroxy-4-methylpyridine, 2,6-diaminopyridine, 2,3-diamino-6-methoxypyridine and 3,5-diamino-2,6-dimethoxypyridine,
• Naphthalene derivatives such as, for example, 1-naphthol, 2-methyl-1-naphthol, 2-hydroxymethyl-1-naphthol, 2-hydroxyethyl-1-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-aminobenzomorpholine,
• Quinoxaline derivatives such as 6-methyl-1,2,3,4-tetrahydroquinoxaline,
• Pyrazole derivatives such as 1-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 1-hydroxy-3,4-methylenedioxybenzene, 1-amino-3,4-methylenedioxybenzene and 1- (2'-hydroxyethyl) amino-3,4-methylenedioxybenzene

and their physiologically acceptable salts.

Particularly according to the invention preferred coupler components 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-methyl, 2,5-dimethylresorcinol and 2,6-dihydroxy-3,4-dimethylpyridine.

In addition, in the Frame a fifth embodiment preferred as precursors of natural dyes such indoles and Indolines in the inventive compositions be used which have at least one hydroxy or amino group, preferably as a substituent on the six-membered ring. These groups can more Wear substituents, for. B. in the form of etherification or esterification the hydroxy group or an alkylation of the amino group. In a second preferred embodiment contain the colorants at least one indole and / or Indoline.

in der unabhängig voneinander

• – G²¹ steht für Wasserstoff, eine C₁-C₄-Alkylgruppe oder eine C₁-C₄-Hydroxy-alkylgruppe,
• – G²² steht für Wasserstoff oder eine -COOH-Gruppe, wobei die -COOH-Gruppe auch als Salz mit einem physiologisch verträglichen Kation vorliegen kann,
• – G²³ steht für Wasserstoff oder eine C₁-C₄-Alkylgruppe,
• – G²⁴ steht für Wasserstoff, eine C₁-C₄-Alkylgruppe oder eine Gruppe -CO-G²⁶, in der G²⁶ steht für eine C₁-C₄-Alkylgruppe, und
• – G²⁵ steht für eine der unter G²⁴ genannten Gruppen,

sowie physiologisch verträgliche Salze dieser Verbindungen mit einer organischen oder anorganischen Säure.Particularly suitable precursors of natural-analogous hair dyes are derivatives of 5,6-dihydroxyindoline of the formula VIIIa,

in the independently of each other

• G ²¹ is hydrogen, a C ₁ -C ₄ -alkyl group or a C ₁ -C ₄ -hydroxy-alkyl group,
• G ²² is hydrogen or a -COOH group, where the -COOH group may also be in the form of a salt with a physiologically compatible cation,
• G ²³ is hydrogen or a C ₁ -C ₄ -alkyl group,
• - G ²⁴ is hydrogen, a C ₁ -C ₄ alkyl group or a group -CO-G ²⁶ , in which G ²⁶ is a C ₁ -C ₄ alkyl group, and
• - G ²⁵ stands for one of the groups mentioned under G ²⁴ ,

and physiologically acceptable salts of these compounds with an organic or inorganic acid.

Especially preferred derivatives of indoline are the 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.

Especially noteworthy within this group are N-methyl-5,6-dihydroxyindoline, N-ethyl-5,6-dihydroxyindoline, N-propyl-5,6-dihydroxyindoline, N-butyl-5,6-dihydroxyindoline and in particular the 5,6-dihydroxyindoline.

in der unabhängig voneinander

• – G²⁷ steht für Wasserstoff, eine C₁-C₄-Alkylgruppe oder eine C₁-C₄-Hydroxyalkylgruppe,
• – G²⁸ steht für Wasserstoff oder eine -COOH-Gruppe, wobei die -COOH-Gruppe auch als Salz mit einem physiologisch verträglichen Kation vorliegen kann,
• – G²⁹ steht für Wasserstoff oder eine C₁-C₄-Alkylgruppe,
• – G³⁰ steht für Wasserstoff, eine C₁-C₄-Alkylgruppe oder eine Gruppe -CO-G³², in der G³² steht für eine C₁-C₄-Alkylgruppe, und
• – G³¹ steht für eine der unter G³⁰ genannten Gruppen,
• – sowie physiologisch verträgliche Salze dieser Verbindungen mit einer organischen oder anorganischen Säure.

Also suitable as precursors of naturally-analogous hair dyes are derivatives of the 5,6-dihydroxyindole of the formula VIIIb,

in the independently of each other

• G ²⁷ is hydrogen, a C ₁ -C ₄ -alkyl group or a C ₁ -C ₄ -hydroxyalkyl group,
• G ²⁸ is hydrogen or a -COOH group, where the -COOH group may also be present as a salt with a physiologically compatible cation,
• G ²⁹ is hydrogen or a C ₁ -C ₄ -alkyl group,
• G ³⁰ is hydrogen, a C ₁ -C ₄ -alkyl group or a group -CO-G ³² , in which G ³² is a C ₁ -C ₄ -alkyl group, and
• - G ³¹ stands for one of the groups mentioned in G ³⁰ ,
• - As well as physiologically acceptable salts of these compounds with an organic or inorganic acid.

Especially 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.

Within this group, N-methyl-5,6-dihydroxyindole, N-ethyl-5,6-dihydroxyindole, N-propyl-5,6-dihydroxyindole, N-butyl-5,6-dihydroxyindole and especially the ^ondere 5, 6-dihydroxyindole.

The Indoline and indole derivatives can in the colorants of the invention both as free bases and in the form of their physiologically acceptable Salts with inorganic or organic acids, e.g. The hydrochlorides, the sulfates and hydrobromides used. The indole or Indoline derivatives are common in these in amounts of 0.05-10 Wt .-%, preferably 0.2-5 Wt .-% included.

• – Pyranose-Oxidase und z.B. D-Glucose oder Galactose,
• – Glucose-Oxidase und D-Glucose,
• – Glycerin-Oxidase und Glycerin,
• – Pyruvat-Oxidase und Benztraubensäure oder deren Salze,
• – Alkohol-Oxidase und Alkohol (MeOH, EtOH),
• – Lactat-Oxidase und Milchsäure und deren Salze,
• – Tyrosinase-Oxidase und Tyrosin,
• – Uricase und Harnsäure oder deren Salze,
• – Cholinoxidase und Cholin,
• – Aminosäure-Oxidase und Aminosäuren.

On the presence of oxidizing agents, for. B. H ₂ O ₂ , can be dispensed with, especially if the agent according to the invention contains no oxidation dye precursors. If the agent according to the invention contains air-oxidizable oxidation dye precursors or indole or indoline derivatives, oxidizing agent can be dispensed with without problems in such a case. However, it may u. It may be desirable to add hydrogen peroxide or other oxidizing agents to the compositions of the invention for achieving the shades that are lighter than the keratin-containing fiber to be dyed. Oxidizing agents are generally used in an amount of 0.01 to 6 wt .-%, based on the application solution. A preferred oxidizing agent for human hair is H ₂ O ₂ . Mixtures of several oxidizing agents, such as a combination of hydrogen peroxide and peroxodisulfates of the alkali and alkaline earth metals or of iodide ion sources, such as alkali metal iodides and hydrogen peroxide or the aforementioned peroxodisulfates, may also be used. The oxidizing agent or the oxidizing agent combination can be used according to the invention in conjunction with oxidation catalysts in the hair dye. Oxidation catalysts are, for example, metal salts, metal chelate complexes or metal oxides, which allow a slight change between two oxidation states of the metal ions. Examples are salts, chelate complexes or oxides of iron, ruthenium, manganese and copper. Other possible oxidation catalysts are enzymes. Examples of suitable enzymes are peroxidases, which can markedly 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 aid of atmospheric oxygen, such as, for example, the laccases, or generate small amounts of hydrogen peroxide in situ and thus biocatalytically activate the oxidation of the dye precursors. Particularly suitable catalysts for the oxidation of the dye precursors are the so-called 2-electron oxidoreductases in combination with the specific substrates, eg

• Pyranose oxidase and eg D-glucose or galactose,
• Glucose oxidase and D-glucose,
• - glycerol oxidase and glycerin,
• Pyruvate oxidase and pyruvic acid or its salts,
• Alcohol oxidase and alcohol (MeOH, EtOH),
• Lactate oxidase and lactic acid and their salts,
• Tyrosinase oxidase and tyrosine,
• Uricase and uric acid or their salts,
• - choline oxidase and choline,
• - amino acid oxidase and amino acids.

In a sixth embodiment, the colorants according to the invention for further modifying the color shades in addition to the compounds according to the invention additionally contain conventional substantive dyes such as Nitrophenylendiamine, Nitroaminophenole, azo dyes, anthraquinones or indophenols. Preferred substantive dyes are those having the international designations 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 Red, 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 as well as 1,4-diamino-2-nitrobenzene, 2-amino-4-nitrophenol, 1, 4-Bis (β-hydroxyethyl) amino-2-nitrobenzene, 3-nitro-4- (β-hydroxyethyl) aminophenol, 2- (2'-hydroxyethyl) amino-4,6-dinitrophenol, 1- (2 '-Hydroxyethyl) amino-4-methyl-2-nitrobenzene, 1-amino-4- (2'-hydroxyethyl) amino-5-chloro-2-nitrobenzene, 4-amino-3-nitrophenol, 1- (2' -Ureidoethyl) amino-4-nitrobenzene, 4-amino-2-nitrodiphenylamine-2'-carboxylic acid, 6-nitro-1,2,3,4-tetrahydroquinoxaline, 2-hydroxy-1,4-naphthoquinone, picramic acid and their salts , 2-amino-6-chloro-4-nitrophenol, 4-ethylamino-3-nitrobenzoic acid and 2-chloro-6-ethylamino-1-hydroxy-4-nitrobenzene.

• (a) kationische Triphenylmethanfarbstoffe, wie beispielsweise Basic Blue 7, Basic Blue 26, Basic Violet 2 und Basic Violet 14,
• (b) aromatischen Systeme, die mit einer quaternären Stickstoffgruppe substituiert sind, wie beispielsweise Basic Yellow 57, Basic Red 76, Basic Blue 99, Basic Brown 16 und Basic Brown 17, sowie
• (c) direktziehende Farbstoffe, die einen Heterocyclus enthalten, der mindestens ein quaternäres Stickstoffatom aufweist, wie sie beispielsweise in der EP-A2-998 908, auf die an dieser Stelle explizit Bezug genommen wird, in den Ansprüchen 6 bis 11 genannt werden.

Furthermore, the agents according to the invention may preferably contain a cationic substantive dye. Particularly preferred are

• (a) cationic triphenylmethane dyes such as Basic Blue 7, Basic Blue 26, Basic Violet 2 and Basic Violet 14,
• (b) aromatic systems substituted with a quaternary nitrogen group, such as Basic Yellow 57, Basic Red 76, Basic Blue 99, Basic Brown 16 and Basic Brown 17, as well as
• (C) substantive dyes containing a heterocycle having at least one quaternary nitrogen atom, as mentioned for example in EP-A2-998 908, to which reference is explicitly made at this point in claims 6 to 11 are called.

Preferred cationic substantive dyes of group (c) are in particular the following compounds:

The compounds of the formulas (DZ1), (DZ3) and (DZ5) are very particularly preferred cationic substantive dyes of group (c). The cationic direct dyes, which are sold under the trademark Arianor ^® are, according to the invention particularly preferred substantive dyes.

The agents according to the invention according to this embodiment contain the substantive dyes preferably in an amount from 0.01 to 20 wt .-%, based on the total colorant.

Farther can the preparations according to the invention also occurring in nature dyes, as for example in henna red, henna neutral, henna black, chamomile flower, sandalwood, black tea, buckthorn bark, sage, bluewood, madder root, catechu, Sedre and alkano root are included.

It is not required that the optionally containing direct dyes each uniform compounds represent. Rather, you can in the colorants according to the invention, due to the production process for the individual dyes, be contained in minor amounts still other components as far as these are not the dyeing result adversely affect or for other reasons, eg. B. toxicological, must be excluded.

to Achieving further and more intense colorations can the agents of the invention additionally color enhancers contain. The color enhancers are preferably selected from the group consisting of piperidine, piperidine-2-carboxylic acid, piperidine-3-carboxylic acid, piperidine-4-carboxylic acid, pyridine, 2-hydroxypyridine, 3-hydroxypyridine, 4-hydroxypyridine, imidazole, 1-methylimidazole, arginine, histidine, pyrrolidine, proline, pyrrolidone, Pyrrolidone-5-carboxylic acid, Pyrazole, 1,2,4-triazole, piperazidine, their derivatives and their physiologically compatible Salt.

The above color amplifier can in an amount of 0.03 to 10 wt .-%, in particular 0.5 up to 5% by weight, in each case based on 100 g of the ready-to-use colorant, be used.

The agents according to the invention can have a pH of from pH 4 to 12, preferably from pH 5 to 10.

The Colorants according to the invention already at physiologically acceptable temperatures of below 45 ° C intensive Colorations. They are therefore particularly suitable for dyeing human hair. For use on human hair, the colorants are usually incorporated into an aqueous cosmetic carrier. suitable hydrous cosmetic carriers are z. As creams, emulsions, gels or surfactant-containing foaming solutions such z. As shampoos or other preparations, the application to the keratinhaltigen Fibers are suitable. If necessary, it is also possible to dye in anhydrous carrier incorporate.

When cosmetic carrier becomes according to the invention in particular an otherwise usual carrier of coloring agents used human hair. The colorants according to the invention can, apart from the components according to the invention according to known colorants be composed or for this usual Contain ingredients. Examples of further suitable and inventively more preferred Ingredients are given below.

The agents according to the invention contain the compounds of formula (I) and the compounds of the component B preferably in a suitable aqueous, alcoholic or aqueous-alcoholic carrier. To the Purposes of hair coloring are such carriers For example, creams, emulsions, gels or surfactant-containing foaming Solutions, such as shampoos, foam aerosols or other preparations which for the Application on the hair are suitable. But it is also conceivable the dye precursors in a powdered or tablet-shaped formulation to integrate.

For the purposes of the present invention, aqueous-alcoholic solutions are to be understood as meaning aqueous solutions containing from 3 to 70% by weight of a C ₁ -C ₄ -alcohol, in particular ethanol or isopropanol. The compositions according to the invention may additionally contain further organic solvents, for example methoxybutanol, benzyl alcohol, ethyl diglycol or 1,2-propylene glycol. Preference is given to all water-soluble organic solvents.

In many cases contain the colorants at least one surfactant, wherein in principle both anionic and zwitterionic, ampholytic, nonionic and cationic surfactants are suitable. In many cases However, it proved to be advantageous, the surfactants from anionic, select zwitterionic or nonionic surfactants.

• – lineare Fettsäuren mit 10 bis 22 C-Atomen (Seifen),
• – Ethercarbonsäuren der Formel R-O-(CH₂-CH₂O)_x-CH₂-COOH, in der R eine lineare Alkylgruppe mit 10 bis 22 C-Atomen und x = 0 oder 1 bis 16 ist,
• – Acylsarcoside mit 10 bis 18 C-Atomen in der Acylgruppe,
• – Acyltauride mit 10 bis 18 C-Atomen in der Acylgruppe,
• – Acylisethionate mit 10 bis 18 C-Atomen in der Acylgruppe,
• – Sulfobernsteinsäuremono- und -dialkylester mit 8 bis 18 C-Atomen in der Alkylgruppe und Sulfobernsteinsäuremono-alkylpolyoxyethylester mit 8 bis 18 C-Atomen in der Alkylgruppe und 1 bis 6 Oxyethylgruppen,
• – lineare Alkansulfonate mit 12 bis 18 C-Atomen,
• – lineare Alpha-Olefinsulfonate mit 12 bis 18 C-Atomen,
• – Alpha-Sulfofettsäuremethylester von Fettsäuren mit 12 bis 18 C-Atomen,
• – Alkylsulfate und Alkylpolyglykolethersulfate der Formel R-O(CH₂-CH₂O)_x-SO₃H, in der R eine bevorzugt lineare Alkylgruppe mit 10 bis 18 C-Atomen und x = 0 oder 1 bis 12 ist,
• – Gemische oberflächenaktiver Hydroxysulfonate gemäß DE-A-37 25 030,
• – sulfatierte Hydroxyalkylpolyethylen- und/oder Hydroxyalkylenpropylenglykolether gemäß DE-A-37 23 354,
• – Sulfonate ungesättigter Fettsäuren mit 12 bis 24 C-Atomen und 1 bis 6 Doppelbindungen gemäß DE-A-39 26 344,
• – Ester der Weinsäure und Zitronensäure mit Alkoholen, die Anlagerungsprodukte von etwa 2 bis 15 Molekülen Ethylenoxid und/oder Propylenoxid an Fettalkohole mit 8 bis 22 C-Atomen darstellen.

Suitable anionic surfactants in preparations according to the invention are all anionic surfactants suitable for use on the human body. These are characterized by a water-solubilizing, anionic group such as. Example, a carboxylate, sulfate, sulfonate or phosphate group and a lipophilic alkyl group having about 10 to 22 carbon atoms. In addition, glycol or polyglycol ether groups, ester, ether and amide groups and hydroxyl groups may be present in the molecule. Examples of suitable anionic surfactants are, in each case in the form of the sodium, potassium and ammonium as well as the mono-, di- and trialkanolammonium salts with 2 or 3 C atoms in the alkanol group,

• - linear fatty acids with 10 to 22 carbon atoms (soaps),
• Ether carboxylic acids of the formula RO- (CH ₂ -CH ₂ O) _x -CH ₂ -COOH, in which R is a linear alkyl group having 10 to 22 C atoms and x = 0 or 1 to 16,
• Acylsarcosides having 10 to 18 C atoms in the acyl group,
• Acyltaurides having 10 to 18 C atoms in the acyl group,
• Acyl isethionates having 10 to 18 C atoms in the acyl group,
• - Sulfobernsteinsäuremono- and -dialkylester having 8 to 18 carbon atoms in the alkyl group and sulfosuccinic acid monoalkyl polyoxyethyl esters having 8 to 18 C atoms in the alkyl group and 1 to 6 oxyethyl groups,
• Linear alkanesulfonates having 12 to 18 C atoms,
• - linear alpha-olefin sulfonates having 12 to 18 C atoms,
• Alpha-sulfofatty acid methyl esters of fatty acids containing 12 to 18 carbon atoms,
• Alkyl sulfates and alkyl polyglycol ether sulfates of the formula RO (CH ₂ -CH ₂ O) _x -SO ₃ H, in which R is a preferably linear alkyl group having 10 to 18 C atoms and x = 0 or 1 to 12,
• Mixtures of surface-active hydroxysulfonates according to DE-A-37 25 030,
• Sulfated hydroxyalkylpolyethylene and / or hydroxyalkylene-propylene glycol ethers according to DE-A-37 23 354,
• Sulfonates of unsaturated fatty acids having 12 to 24 carbon atoms and 1 to 6 double bonds according to DE-A-39 26 344,
• - esters of tartaric acid and citric acid with alcohols which are addition products of about 2 to 15 molecules of ethylene oxide and / or propylene oxide to fatty alcohols having 8 to 22 carbon atoms.

Preferred anionic surfactants are alkyl sulfates, alkyl polyglycol ether sulfates and ether carboxylic acids having 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 C ₈ -C ₂₂ carboxylic acids, such as oleic acid, stearic acid, isostearic acid and palmitic acid ,

Zwitterionic surfactants are those surface-active compounds which carry in the molecule at least one quaternary ammonium group and at least one -COO ^(-) or -SO ₃ ^(-) group. Particularly suitable zwitterionic surfactants are the so-called betaines such as N-alkyl-N, N-dimethylammonium glycinates, for example cocoalkyl dimethylammonium glycinate, N-acylaminopropyl N, N-dimethylammonium glycinates, for example cocoacylaminopropyl-dimethylammonium glycinate, and 2-alkyl 3-carboxymethyl-3-hydroxyethyl-imidazolines having in each case 8 to 18 carbon atoms in the alkyl or acyl group and the Kokosacylaminoethylhydroxyethylcarboxymethylglycinat. A preferred zwitterionic surfactant is the fatty acid amide derivative known by the CTFA name Cocamidopropyl Betaine.

Ampholytic surfactants are understood as meaning those surface-active compounds which, apart from a C _8-18 -alkyl or -acyl group in the molecule, contain at least one free amino group and at least one -COOH or -SO ₃ H group and are capable of forming internal salts. Examples of suitable 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 having about 8 to 18 C Atoms in the alkyl group. Particularly preferred ampholytic surfactants are N-cocoalkylaminopropionate, cocoacylaminoethylaminopropionate and C _12-18 acylsarcosine.

• – Anlagerungsprodukte von 2 bis 30 Mol Ethylenoxid und/oder 0 bis 5 Mol Propylenoxid an lineare Fettalkohole mit 8 bis 22 C-Atomen, an Fettsäuren mit 12 bis 22 C-Atomen und an Alkylphenole mit 8 bis 15 C-Atomen in der Alkylgruppe,
• – C_12-22-Fettsäuremono- und -diester von Anlagerungsprodukten von 1 bis 30 Mol Ethylenoxid an Glycerin,
• – C_8-22-Alkylmono- und -oligoglycoside und deren ethoxylierte Analoga,
• – Anlagerungsprodukte von 5 bis 60 Mol Ethylenoxid an Rizinusöl und gehärtetes Rizinusöl,
• – Anlagerungsprodukte von Ethylenoxid an Sorbitanfettsäureester,
• – Anlagerungsprodukte von Ethylenoxid an Fettsäurealkanolamide.

Nonionic surfactants contain as hydrophilic group z. A polyol group, a polyalkylene glycol ether group or a combination of polyol and polyglycol ether groups. Such compounds are, for example

• Addition products of 2 to 30 moles of ethylene oxide and / or 0 to 5 moles of propylene oxide onto linear fatty alcohols having 8 to 22 carbon atoms, to fatty acids containing 12 to 22 carbon atoms and to alkylphenols having 8 to 15 carbon atoms in the alkyl group,
• C _12-22 fatty acid mono- and diesters of addition products of 1 to 30 moles of ethylene oxide with glycerol,
• C _{8-22 alkyl} mono- and oligoglycosides and their ethoxylated analogs,
• Adducts of 5 to 60 moles of ethylene oxide with castor oil and hydrogenated castor oil,
• Adducts of ethylene oxide with sorbitan fatty acid esters,
• - Addition products of ethylene oxide to fatty acid alkanolamides.

Examples for the in the hair treatment compositions according to the invention Usable cationic surfactants are especially quaternary ammonium compounds. Preference is given to ammonium halides such as alkyltrimethylammonium chlorides, Dialkyldimethylammonium chlorides and trialkylmethylammonium chlorides, z. Cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, Distearyldimethylammonium chloride, lauryldimethylammonium chloride, Lauryldimethylbenzylammonium chloride and Tricetylmethylammoniumchlarid. Further usable according to the invention cationic surfactants are the quaternized protein hydrolysates represents.

Also suitable in the present invention are cationic silicone oils such as the commercially available products Q2-7224 (manufactured by Dow Corning, a stabilized trimethylsilylamodimethicone), Dow Corning 929 emulsion (containing a hydroxylamino-modified silicone, also referred to as amodimethicones), SM -2059 (manufacturer: General Electric), SLM-55067 (manufacturer: Wacker) and Abil ^® quat 3270 and 3272 (manufacturer: Th. Goldschmidt; diquaternary polydimethylsiloxanes, quaternium-80).

Alkylamidoamines, in particular fatty acid amidoamines, such as the ^{stearylamidopropyldimethylamine} obtainable under the name Tego ^Amid® S 18, are distinguished not only by a good conditioning action but also by their good biodegradability.

Also very good biodegradability are quaternary Esterverbindungen, so-called "esterquats", such as those marketed under the trademark Stepantex ^® methylhydroxyalkyldialkoyloxyalkylammonium.

An example of a suitable cationic surfactant quaternary sugar derivative is the commercial product Glucquat 100 ^®, according to CTFA nomenclature a "lauryl methyl Gluceth-10 Hydroxypropyl Dimonium Chloride".

at the compounds used as surfactants with alkyl groups each are uniform substances. However, it is usually preferred in the preparation of these substances of native vegetable or animal raw materials, so that you substance mixtures obtained with different, depending on the raw material alkyl chain lengths.

at the surfactants, the adducts of ethylene and / or propylene oxide represent fatty alcohols or derivatives of these addition products, can both products with a "normal" homolog distribution as well as those with a narrow homolog distribution become. Under "normal" homolog distribution are understood to mean mixtures of homologs which are used in the Reaction of fatty alcohol and alkylene oxide using alkali metals, Alkali metal hydroxides or alkali metal alcoholates as Kata catalysts receives. Narrowed homolog distributions are obtained when, 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 narrow homolog distribution may be preferred.

• – nichtionische Polymere wie beispielsweise Vinylpyrrolidon/Vinylacrylat-Copolymere, Polyvinylpyrrolidon und Vinylpyrrolidon/Vinylacetat-Copolymere und Polysiloxane,
• – kationische Polymere wie quaternisierte Celluloseether, Polysiloxane mit quaternären Gruppen, Dimethyldiallylammoniumchlorid-Polymere, Acrylamid-Dimethyldiallylammoniumchlorid-Copolymere, mit Diethylsulfat quaternierte Dimethylaminoethylmethacrylat-Vinylpyrrolidon-Copolymere, Vinylpyrrolidon-Imidazoliniummethochlorid-Copolymere und quaternierter Polyvinylalkohol,
• – zwitterionische und amphotere Polymere wie beispielsweise Acrylamidopropyl-trimethylammoniumchlorid/Acrylat-Copolymere und Octylacrylamid/Methylmethacrylat/tert.-Butylaminoethylmethacrylat/2-Hydroxypropylmethacrylat-Copolymere,
• – anionische Polymere wie beispielsweise Polyacrylsäuren, vernetzte Polyacrylsäuren, Vinylacetat/Crotonsäure-Copolymere, Vinylpyrrolidon/Vinylacrylat-Copolymere, Vinylacetat/Butylmaleat/Isobornylacrylat-Copolymere, Methylvinylether/Maleinsäureanhydrid-Copolymere und Acrylsäure/Ethylacrylat/N-tert.-Butylacrylamid-Terpolymere,
• – Verdickungsmittel wie Agar-Agar, Guar-Gum, Alginate, Xanthan-Gum, Gummi arabicum, Karaya-Gummi, Johannisbrotkernmehl, Leinsamengummen, Dextrane, Cellulose-Derivate, z. B. Methylcellulose, Hydroxyalkylcellulose und Carboxymethylcellulose, Stärke-Fraktionen und Derivate wie Amylose, Amylopektin und Dextrine, Tone wie z. B. Bentonit oder vollsynthetische Hydrokolloide wie z. B. Polyvinylalkohol,
• – Strukturanten wie Glucose und Maleinsäure,
• – haarkonditionierende Verbindungen wie Phospholipide, beispielsweise Sojalecithin, Ei-Lecitin und Kephaline, sowie Silikonöle,
• – Proteinhydrolysate, insbesondere Elastin-, Kollagen-, Keratin-, Milcheiweiß-, Sojaprotein- und Weizenproteinhydrolysate, deren Kondensationsprodukte mit Fettsäuren sowie quaternisierte Proteinhydrolysate,
• – Parfümöle, Dimethylisosorbid und Cyclodextrine,
• – Lösungsvermittler wie Ethanol, Isopropanol, Ethylenglykol, Propylenglykol, Glycerin und Diethylenglykol,
• – Antischuppenwirkstoffe wie Piroctone Olamine und Zink Omadine,
• – weitere Substanzen zur Einstellung des pH-Wertes, wie Ammoniak, Monoethanolamin, basische Aminosäuren und Citronensäure
• – Wirkstoffe wie Panthenol, Pantothensäure, Allantoin, Pyrrolidoncarbonsäuren und deren Salze, Pflanzenextrakte und Vitamine,
• – Cholesterin,
• – Lichtschutzmittel,
• – Konsistenzgeber wie Zuckerester, Polyolester oder Polyolalkylether,
• – Fette und Wachse wie Walrat, Bienenwachs, Montanwachs, Paraffine, Fettalkohole und Fettsäureester,
• – Fettsäurealkanolamide,
• – Komplexbildner wie EDTA, NTA und Phosphonsäuren,
• – Quell- und Penetrationsstoffe wie Glycerin, Propylenglykolmonoethylether, Carbonate, Hydrogencarbonate, Guanidine, Harnstoffe sowie primäre, sekundäre und tertiäre Phosphate, Imidazole, Tannine, Pyrrol,
• – Trübungsmittel wie Latex,
• – Perlglanzmittel wie Ethylenglykolmono- und -distearat,
• – Treibmittel wie Propan-Butan-Gemische, N₂O, Dimethylether, CO₂ und Luft sowie
• – Antioxidantien.

Other active ingredients, auxiliaries and additives are, for example

• Nonionic polymers such as vinyl pyrrolidone / vinyl acrylate copolymers, polyvinyl pyrrolidone and vinyl pyrrolidone / vinyl acetate copolymers and polysiloxanes,
• Cationic polymers such as quaternized cellulose ethers, quaternary group polysiloxanes, dimethyldiallylammonium chloride polymers, acrylamide-dimethyldiallylammonium chloride copolymers, diethyl sulfate quaternized dimethylaminoethylmethacrylate-vinylpyrrolidone copolymers, vinylpyrrolidone-imidazolinium methochloride copolymers and quaternized polyvinyl alcohol,
• Zwitterionic and amphoteric polymers such as acrylamidopropyltrimethylammonium chloride / acrylate copolymers and octylacrylamide / methylmethacrylate / tert-butylaminoethylmethacrylate / 2-hydroxypropylmethacrylate copolymers,
• Anionic polymers such as, for example, polyacrylic acids, crosslinked polyacrylic acids, vinyl acetate / crotonic acid copolymers, vinylpyrrolidone / vinyl acrylate copolymers, vinyl acetate / butyl maleate / isobornyl acrylate copolymers, methyl vinyl ether / maleic anhydride copolymers and acrylic acid / ethyl acrylate / N-tert-butylacrylamide terpolymers,
• Thickeners such as agar-agar, guar gum, alginates, xanthan gum, gum arabic, karaya gum, locust bean gum, linseed gums, dextrans, cellulose derivatives, e.g. For example, methylcellulose, hydroxyalkylcellulose and carboxymethylcellulose, starch fractions and derivatives such as amylose, amylopectin and dextrins, clays such. As bentonite or fully synthetic hydrocolloids such. For example, polyvinyl alcohol,
• - structurants such as glucose and maleic acid,
• Hair-conditioning compounds such as phospholipids, for example soya lecithin, egg lecithin and cephalins, and silicone oils,
• Protein hydrolysates, in particular elastin, collagen, keratin, milk protein, soy protein and wheat protein hydrolysates, their condensation products with fatty acids and quaternized protein hydrolysates,
• Perfume oils, dimethylisosorbide and cyclodextrins,
• Solubilizers such as ethanol, isopropanol, ethylene glycol, propylene glycol, glycerol and diethylene glycol,
• Anti-dandruff agents such as Piroctone Olamine and Zinc Omadine,
• - Other substances for adjusting the pH, such as ammonia, monoethanolamine, basic amino acids and citric acid
• - active substances such as panthenol, pantothenic acid, allantoin, pyrrolidonecarboxylic acids and their salts, plant extracts and vitamins,
• - cholesterol,
• - sunscreen,
• Bodying agents such as sugar esters, polyol esters or polyol alkyl ethers,
• Fats and waxes such as spermaceti, beeswax, montan wax, paraffins, fatty alcohols and fatty acid esters,
• Fatty acid alkanolamides,
• - complexing agents such as EDTA, NTA and phosphonic acids,
• - Swelling and penetration substances such as glycerol, propylene glycol monoethyl ether, carbonates, bicarbonates, guanidines, ureas and primary, secondary and tertiary phosphates, imidazoles, tannins, pyrrole,
• Opacifiers such as latex,
• Pearlescing agents such as ethylene glycol mono- and distearate,
• - Propellants such as propane-butane mixtures, N ₂ O, dimethyl ether, CO ₂ and air and
• - antioxidants.

The Components of the hydrous carrier become the preparation the colorant of the invention in for usual for this purpose Quantities used; z. B. become emulsifiers in concentrations from 0.5 to 30% by weight and thickener in concentrations of 0.1 to 25 wt .-% of the total colorant used.

For the dyeing result It may be advantageous to the colorants Add ammonium or metal salts. Suitable metal salts are z. B. formates, carbonates, halides, sulfates, butyrates, valerates, Capronates, Acetates, Lactates, Glycolates, Tartrates, Citrates, Gluconates, Propionates, phosphates and phosphonates of alkali metals, such as potassium, Sodium or lithium, alkaline earth metals, such as magnesium, calcium, Strontium or barium, or of aluminum, manganese, iron, cobalt, Copper or zinc, with sodium acetate, lithium bromide, calcium bromide, Calcium gluconate, zinc chloride, zinc sulfate, magnesium chloride, magnesium sulfate, Ammonium carbonate, chloride and acetate are preferred. These salts are preferably in an amount of 0.03 to 10 wt .-%, in particular from 0.5 to 5 wt .-%, based on 100 g of the entire ready for use colorant contain.

Of the pH of the ready-to-use dyeing preparations is usually between 2 and 11, preferably between 5 and 10.

worin R1, R2, R3 und Y wie im ersten Erfindungsgegenstand definiert sind, zusammen mit mindestens einer CH-aciden Verbindung als Komponente B als färbende Komponente in Haarfärbemitteln.A second subject of the present invention relates to the use of at least one compound according to formula I,

wherein R1, R2, R3 and Y are as defined in the first subject of the invention, together with at least one CH-acidic compound as component B as a coloring component in hair dyes.

In a preferred embodiment using those compounds of formula I as a coloring component in hair dyes, which are preferred from those named in the first subject of the invention and particularly preferred representatives.

Furthermore it may be preferred at least one reaction product RP from a Compound according to formula I and a representative of component B as coloring components in hair dyes to use.

• – als Komponente A mindestens eine Verbindung gemäß Formel I,
  
  worin R1, R2, R3 und Y wie im ersten Erfindungsgegenstand definiert sind, zusammen mit
• – mindestens einer CH-aciden Verbindung als Komponente B,

auf die keratinhaltigen Fasern aufgebracht, einige Zeit, üblicherweise ca. 15–30 Minuten, auf der Faser belassen und anschließend wieder ausgespült oder mit einem Shampoo ausgewaschen wird. Während der Einwirkzeit des Mittels auf der Faser kann es vorteilhaft sein, den Färbevorgang durch Wärmezufuhr zu unterstützen. Die Wärmezufuhr kann durch eine externe Wärmequelle, wie z.B. warme Luft eines Warmluftgebläses, als auch, insbesondere bei einer Haarfärbung am lebenden Probanden, durch die Körpertemperatur des Probanden erfolgen. Bei letzterer Möglichkeit wird üblicherweise die zu färbende Partie mit einer Haube abgedeckt.A third object of the present invention relates to a process for dyeing keratin-containing fibers, in particular human hair, wherein a colorant contained in a cosmetic carrier

• As component A at least one compound according to formula I,
  
  wherein R1, R2, R3 and Y are as defined in the first subject of the invention, together with
• At least one CH-acidic compound as component B,

Applied to the keratin fibers, some time, usually about 15-30 minutes, left on the fiber and then rinsed again or washed out with a shampoo. During the contact time of the agent on the fiber, it may be advantageous to assist the dyeing process by supplying heat. The heat supply can be done by an external heat source, such as warm air of a hot air blower, as well as, especially in a hair dye on living subjects, by the body temperature of the subject. In the latter case, usually the part to be dyed is covered with a hood.

there can the compounds according to formula I and the compounds of component B, in particular those above named preferred and particularly preferred representatives, as a coloring Components are applied either simultaneously to the hair or in succession, d. H. in a multi-stage process, it does not matter which of the components is applied first becomes. The optionally contained ammonium or metal salts can thereby the compounds of formula I or the compounds of the component B be added. Between the application of the individual components can up to 30 minutes apart. Also a pretreatment of the fibers with the saline solution is possible.

• V1 vor der Anwendung des erfindungsgemäßen Mittels einer Blondierung oder
• V2 vor der Anwendung des erfindungsgemäßen Mittels einer oxidativen Färbung

unterzogen.Before applying the agent according to the invention in the process according to the invention, it may be desirable to subject the keratin-containing fiber to be dyed to a pretreatment. The time sequence of the pretreatment step required for this purpose and the application of the agent according to the invention need not be in immediate succession, but there may be a period of up to a maximum of two weeks between the pretreatment step and the application of the agent according to the invention. For this purpose, several pre-treatment methods are suitable. The fiber is preferred

• V1 before the application of the inventive bleaching agent or
• V2 before the application of the inventive agent of an oxidative dyeing

undergo.

in the Pretreatment V1 is the keratinhaltige fiber with a Bleaching agent treated. The Blondiermittel contains beside an oxidizing agent, such as usually hydrogen peroxide, preferably at least one effective as an oxidation and bleaching booster inorganic persalt, such as e.g. a peroxodisulfate of sodium, Potassium or ammonium. colorations according to the method of the invention obtained by the pretreatment V1 a special brilliance and Color depth.

in the Pretreatment stage V2 is an agent containing the aforementioned Oxidation dye precursors as developer and optionally Coupler components and optionally the aforementioned derivatives of Indoles or Indolins applied to the fiber and after a contact time optionally with the addition of the abovementioned suitable oxidizing agents on the hair for 5-45 minutes leave on the keratin fiber. Thereafter, the hair is rinsed. By the subsequent one Application of the agent according to the invention can present oxidation stains to be given a new shade of color. If you choose the color shade of the agent according to the invention in the same shade of oxidative staining, so may the coloration of existing oxidation dyes according to the inventive method be refreshed. It turns out that the color refreshment or Nuancierung according to the method of the invention a color refresh or nuance alone with conventional substantive dyes in color brilliance and color depth are superior is.

Contains the hair dye in addition to the compounds of formula I and the compounds of component B in addition as an oxidizing agent hydrogen peroxide or a hydrogen peroxide-containing oxidant mixture, the pH of the hydrogen peroxide-containing hair dye is preferably in egg In the pH range from pH 7 to pH 11, particularly preferably pH 8 to pH 10. The oxidizing agent can be mixed with the hair dye immediately before application and the mixture applied to the hair. If the compounds of the formula I and the component B are applied to the hair in a two-stage process, the oxidizing agent must be used in one of the two process stages together with the corresponding coloring component. For this purpose, it may be preferable to formulate the oxidizing agent with one of the coloring components in a container.

The Compounds according to formula I and the compounds of component B can be either in separate Containers or stored together in a container, either in a liquid until pasty Preparation (watery or anhydrous) or as a solid, for example as a dry one Powder. Are the components together in a liquid preparation stored, so this should reduce the reaction of the components be largely anhydrous and have an acidic pH. Become the components stored together, it is preferable to these as Solid, in particular in the form of a preferably multi-layered Molding, e.g. as a tablet. In the case of multilayered Shaped body becomes component A in one layer and component B in another Layer incorporated, between these layers preferably another layer is as a release layer. The separation layer is free of compounds of components A and B.

at the separate storage, the reactive components are only immediately intimately mixed with each other before use. In the dry Storage usually becomes before use a defined amount of warm (30 ° C up to 80 ° C) Added water and a homogeneous mixture.

• – mindestens einer Verbindung gemäß Formel I,
  
  worin R1, R2, R3 und Y wie im ersten Erfindungsgegenstand definiert sind, zusammen mit
• – mindestens einer CH-aciden Verbindung als Komponente B,

zur Nuancierung von Oxidationsfärbungen von keratinhaltigen Fasern, insbesondere menschlichen Haaren. Bei der Verwendung ist es unerheblich, ob die Nuancierung gleichzeitig während der oxidativen Färbung erfolgt, oder die oxidative Färbung zeitlich vor der Nuancierung liegt.A fourth object of the invention is the use of

• At least one compound according to formula I,
  
  wherein R1, R2, R3 and Y are as defined in the first subject of the invention, together with
• At least one CH-acidic compound as component B,

for the nuancing of oxidation dyeings of keratin-containing fibers, in particular human hair. In use, it is irrelevant whether the shading occurs simultaneously during the oxidative dyeing, or the oxidative dyeing takes place before the shading.

• – mindestens einer Verbindung gemäß Formel I,
  
  worin R1, R2, R3 und Y wie im ersten Erfindungsgegenstand definiert sind, zusammen mit
• – mindestens einer CH-aciden Verbindung als Komponente B,

zur Farbauffrischung von mit oxidativen Färbemitteln gefärbten keratinhaltigen Fasern.A fifth object of the invention is the use of

• At least one compound according to formula I,
  
  wherein R1, R2, R3 and Y are as defined in the first subject of the invention, together with
• At least one CH-acidic compound as component B,

for the color refreshment of keratin-containing fibers dyed with oxidative colorants.

The dyeings of keratin-containing fibers are known to be environmental influences, such as Light, friction or washes exposed and can thereby lose brilliance and color depth. In the worst case, if necessary, a nuance shift of the coloring sets in. Such aged dyeings of keratinous fibers, if desired by the user, may be restored to the color state by color refreshment as presented immediately after the initial dyeing. It is according to the invention to use a combination of at least one compound of the formula I and at least one compound of the component B for such a color refreshment.

Examples

synthesis Examples

Synthetic Example 1: 1.1. Preparation of 5-formyl-2-hydroxy-3-methoxybenzoic acid (A1)

There were 20.8 g (0.124 mol) of 2-hydroxy-3-methoxybenzoic acid with 28.9 g (0.206 mol) of hexamethylenetetramine (urotropin) in 115 ml of 50% acetic acid for 5 1/2 hours under reflux. Then 125 ml of half-concentrated hydrochloric acid were added to the still hot, clear solution, immediately after the addition a light precipitate precipitated. The solid was filtered off, washed with a little water and dried at room temperature in vacuo.
Yield: 13.8 g (57%)
Mp: 255-256 ° C
¹ H-NMR (400 MHz, DMSO-d ₆ ): δ [ppm] = 3.90 (s, 3H); 7.54 (s, 1H); 7.98 (s, 1H); 9.85 (s, 1H)

Synthetic Example 2: 2.1. Preparation of 5-formyl-2-hydroxy-3-methylbenzoic acid (A2)

15.0 g (0.097 mol) of 2-hydroxy-3-methylbenzoic acid were refluxed with 23.0 g (0.164 mol) of hexamethylenetetramine (urotropin) in 100 ml of 50% acetic acid for 5 hours. Then, 100 ml of half-concentrated hydrochloric acid was added to the still hot, clear solution, precipitating a light precipitate immediately after the addition. The solid was filtered off, washed with water and dried at room temperature in vacuo.
Yield: 9.4 g (53%)
Mp: 209-223 ° C
¹ H-NMR (400 MHz, DMSO-d ₆ ): δ [ppm] = 2.23 (s, 3H); 7.88 (s, 1H); 8.21 (s, 1H); 9.86 (s, 1H)

Synthesis Example 3: 3.1. Preparation of methyl 5-formyl-2-hydroxybenzoate (A3)

A suspension of 5.0 g (0.030 mol) of 5-formylsalicylic acid in 50 ml of methanol was added cautiously with 4 ml of concentrated sulfuric acid (gentle heating) and then heated under reflux for 14 hours. After cooling, the reaction mixture was completely concentrated on a rotary evaporator. 150 ml of ethyl acetate were added to the residue and the organic phase was extracted twice with 50 ml of a saturated sodium bicarbonate solution each time. The organic phase was washed twice with 50 ml of water and dried with sodium sulfate and then concentrated completely on a rotary evaporator.
Yield: 4.6 g (85%)
Mp = 74-78 ° C
¹ H-NMR (400 MHz, DMSO-d ₆ ): δ [ppm] = 3.92 (s, 3H); 7.12 (d, 1H); 8.01 (d, 1H); 8.30 (s, 1H); 9.87 (s, 1H); 11.2 (br., OH)

Synthesis Example 4: 4.1. Preparation of methyl 5-formyl-2-hydroxy-3-methoxybenzoate (A4)

To 18.9 g (0.963 mol) of 5-formyl-2-hydroxy-3-methoxybenzoic acid from Synthesis Example 1 in 1500 ml of methanol was added cautiously 130 ml of concentrated sulfuric acid under ice-cooling. The suspension warmed to 15 ° C and turned bright red. After the addition, it was refluxed for 7 hours. After cooling, the reaction mixture was completely concentrated on a rotary evaporator and the residue was cooled. The precipitated red precipitate was filtered off and washed with a little water. The crude product was then recrystallized from 175 ml of methanol. The resulting after crystallization white precipitate was dried at room temperature in vacuo.
Yield: 13.1 g (65%)
Mp = 130-135 ° C
¹ H-NMR (400 MHz, CDCl _3): δ [ppm] = 3.98 (s, 3H); 4.03 (s, 3H); 7.56 (s, 1H); 7.98 (s, 1H); 9.85 (s, 1H); 11.68 (br, OH) Dyeing Examples Preparation of a Colorant Aqueous Gel Formulation for Component A Gel 1 Compound of the formula I (component A) 10 mmol Natrosol HR 250 2 g NaOH (50% aqueous solution) maybe a few drops Water, demineralized ad 100 g Aqueous gel formulation for component B gel 2 C, H-acidic compound (component B) 10 mmol Natrosol HR 250 2 g Water, demineralized ad 100 g

The inventive compound (Component A) was dissolved or suspended in a little water. To increase the solubility was alkalized if necessary with a few drops of 50% sodium hydroxide solution. Subsequently was made up to 98 g with water and until the complete solution the aldehyde stirred (partially with gentle warming to about 40 ° C). Subsequently was stirring Added Natrosol and waited for the swelling process.

The C, H-acidic compound (component B) was added with stirring in little water dissolved, then was made up to 98 g with water. While stirring the Natrosol was added and the swelling process was awaited.

The both aqueous Gel formulations (Gel 1 and Gel 2) were in the ratio 1 : 1 mixed, then with ammonia or tartaric acid was the pH adjusted.

• Intensität: +++ = hoch ++ = mittel + = schwach
• A1 5-Formyl-2-hydroxy-3-methoxybenzoesäure
• A2 5-Formyl-2-hydroxy-3-methylbenzoesäure
• A3 Methyl-5-formyl-2-hydroxybenzoat
• A4 Methyl-5-formyl-2-hydroxy-3-methoxybenzoat
• A5 5-Formyl-2-hydroxybenzoesäure
• B1 1,2-Dihydro-1,3,4,6-tetramethyl-2-oxopyrimidiniumhydrogensulfat
• B2 1-Allyl-1,2-dihydro-3,4,6-trimethyl-2-oxopyrimidiniumbromid
• B3 1,2-Dihydro-1-(2-hydroxyethyl)-3,4,6-trimethyl-2-oxopyrimidinium-p-toluolsulfonat
• B4 2-(Cyanomethyl)benzimidazol

This ready-to-use hair dye thus obtained was applied to a hair strand of 90% gray, non-pretreated human hair applied (liquor ratio gel mixture / hair = 2: 1) and evenly distributed with an Applicette. After a contact time of 30 minutes at 32 ° C, the tress was rinsed with lukewarm water and then dried in a warm air stream. The stains were visually assessed under a daylight lamp. The result is shown in Table 1. Table 1:

• Intensity: +++ = high ++ = medium + = weak
• A1 5-formyl-2-hydroxy-3-methoxybenzoic acid
• A2 5-formyl-2-hydroxy-3-methylbenzoic acid
• A3 methyl 5-formyl-2-hydroxybenzoate
• A4 methyl 5-formyl-2-hydroxy-3-methoxybenzoate
• A5 5-formyl-2-hydroxybenzoic acid
• B1 1,2-dihydro-1,3,4,6-tetramethyl-2-oxopyrimidinium hydrogen sulfate
• B2 1-Allyl-1,2-dihydro-3,4,6-trimethyl-2-oxopyrimidinium bromide
• B3 1,2-dihydro-1- (2-hydroxyethyl) -3,4,6-trimethyl-2-oxopyrimidinium p-toluenesulfonate
• B4 2- (cyanomethyl) benzimidazole

Claims (22)

Agent for dyeing keratin-containing fibers, in particular human hair, containing in a cosmetic carrier - as component A at least one compound according to formula I,

R _1, R _{2 and} R 3 independently of one another represent a hydrogen atom, a halogen atom, a C ₁ -C ₆ -alkyl group, a C ₂ -C ₆ -alkenyl group, a hydroxy group, a C ₁ -C ₆ -alkoxy group, a C ₁ - C ₆ hydroxyalkyl group, C ₂ -C ₆ polyhydroxyalkyl group, hydroxy (C ₁ -C ₆ ) alkyloxy group, carboxy group, (C ₁ -C ₆ ) alkoxycarbonyl group, hydroxy (C ₂ -C ₆ ) alkyloxycarbonyl group, a C ₂ -C ₆ acyl group, a formyl group, a nitro group, a group -C (O) -NR ⁴ R ⁵ , or a group - (CH ₂ ) _n NR ⁶ R ⁷ , wherein R ⁴ , R ⁵ , R ⁶ and R ⁷ independently of one another represent a hydrogen atom, a C ₁ -C ₆ -alkyl group or a C ₂ -C ₆ -hydroxyalkyl group and n is an integer from 0 to 6, where R ₁ and R _{2 are} a 5- or 6-membered Y is a group -OR ^I or -NR ^II R ^III , wherein R ^I , R ^II and R ^III are each independently a hydrogen atom, a C ₁ -C ₆ alkyl group e, C ₂ -C ₆ alkenyl group, a C ₂ -C ₆ hydroxyalkyl group, a C ₂ -C ₆ polyhydroxyalkyl group, a C ₁ -C ₆ alkoxy (C ₁ -C ₆ ) alkyl group, an aryl group, a heteroaryl group, an aryl- (C ₁ -C ₆ ) -alkyl group, a group - (CH ₂ ) _m NR ^6a R ^7a , in which R ^6a and R ^7a independently of one another represent a hydrogen atom, a C ₁ -C ₆ - Alkyl group or a C ₂ -C ₆ -hydroxyalkyl group and m is an integer from 1 to 6, together with - at least one CH-acidic compound as component B. Composition according to Claim 1, characterized in that the radicals R _1, R 2 and R 3 independently of one another represent a hydrogen atom, a halogen atom, a C ₁ -C ₆ -alkyl group or a C ₁ -C ₆ -alkoxy group. Agent according to one of claims 1 or 2, characterized that the Radicals R2 and R3 represent a hydrogen atom. Agent according to one of Claims 1 to 3, characterized in that the radical Y represents a group -OR ^I or -NR ^II R ^III , in which R ¹ , R ^II and R ^III independently of one another represent a hydrogen atom, a C ₁ - C ₆ alkyl group, a C ₂ -C ₆ hydroxyalkyl group, a C ₂ -C ₆ polyhydroxyalkyl group, a C ₁ -C ₆ alkoxy (C ₁ -C ₆ ) alkyl group. Composition according to one of Claims 1 to 4, characterized in that it contains at least one of the following compounds of formula (I): 5-formyl-2-hydroxybenzoic acid, methyl 5-formyl-2-hydroxybenzoate, ethyl 5-formyl 2-hydroxybenzoate, 2-hydroxyethyl-5-formyl-2-hydroxybenzoate, 2-methoxyethyl-5-formyl-2-hydroxybenzoate, 5-formyl-2-hydroxy-3-methylbenzoic acid, methyl 5-formyl-2-hydroxybenzoate 3-methylbenzoate, ethyl 5-formyl-2-hydroxy-3-methylbenzoate, 2-hydroxyethyl-5-formyl-2-hydroxy-3-methylbenzoate, 2-methoxyethyl-5-formyl-2-hydroxy-3-methylbenzoate, 5-formyl-2-hydroxy-3-methoxy-benzoic acid, methyl 5-formyl-2-hydroxy-3-methoxy-benzoate, ethyl 5-formyl-2-hydroxy-3-methoxy-benzoate, 2-hydroxyethyl 5-formyl-2-hydroxy-3-methoxybenzoate, 2-methoxyethyl-5-formyl-2-hydroxy-3-methoxybenzoate, 3-bromo-5-formyl-2-hydroxybenzoic acid, methyl 3-bromo-5-formyl- 2-hydroxybenzoate, 3-allyl-5-formyl-2-hydroxybenzoic acid, Ethyl 3-bromo-5-formyl-2-hydroxy-benzoate, 2-hydroxyethyl-3-bromo-5-formyl-2-hydroxybenzoate, 2-methoxyethyl-3-bromo-5-formyl-2-hydroxybenzoate, 5- Formyl 2-hydroxybenzamide, 5-formyl-2-hydroxy-N- (2-hydroxyethyl) benzamide, 5-formyl-2-hydroxy-N- (2-methoxyethyl) benzamide, 5-formyl-2-hydroxy-N, N-bis (2-hydroxyethyl) benzamide, 5-formyl-2-hydroxy-N, N-bis (2-methoxyethyl) benzamide, 5-formyl-2-hydroxy-3-methylbenzamide, 5-formyl-2- hydroxy-N- (2-hydroxyethyl) -3-methylbenzamide, 5-formyl-2-hydroxy-N- (2-methoxyethyl) -3-methylbenzamide, 5-formyl-2-hydroxy-N, N-bis (2) hydroxyethyl) -3-methylbenzamide, 5-formyl-2-hydroxy-N, N-bis (2-methoxyethyl) -3-methylbenzamide, 5-formyl-2-hydroxy-3-methoxy-benzamide, 5-formyl-2- hydroxy-N- (2-hydroxyethyl) -3-methoxybenzamide, 5-formyl-2-hydroxy-N- (2-methoxyethyl) -3-methoxybenzamide, 5-formyl-2-hydroxy-N, N-bis (2- hydroxyethyl) -3-methoxybenzamide, 5-formyl-2-hydroxy-N, N-bis (2-methoxyethyl) -3-methoxybenzamide, 3-bromo-5-formyl-2-hydroxybenzamide, 3-bromo-5-formyl- 2-hydroxy-N- (2-hydroxyethyl) benzami d, 3-bromo-5-formyl-2-hydroxy-N- (2-methoxyethyl) benzamide, 3-bromo-5-formyl-2-hydroxy-N, N-bis (2-hydroxyethyl) benzamide, 3-bromo -5-formyl-2-hydroxy-N, N-bis (2-methoxyethyl) benzamide. Agent according to one of claims 1 to 5, characterized in that the CH-acidic compounds are selected from compounds of the formulas (II) and / or (III)

wherein - R ⁸ and R ⁹ independently represent a linear or cyclic C ₁ -C ₆ alkyl group, a C ₂ -C ₆ alkenyl group, an optionally substituted aryl group, an optionally substituted heteroaryl group, an aryl-C ₁ -C ₆ alkyl group, a C ₁ -C ₆ hydroxyalkyl group, a C ₂ -C ₆ polyhydroxyalkyl group, a C ₁ -C ₆ alkoxy C ₁ -C ₆ alkyl group, a group R ^IV R ^V N- (CH ₂ ) _m -, wherein R ^IV and R ^V independently represent a hydrogen atom, a C ₁ -C ₄ alkyl group, a C ₁ -C ₄ hydroxyalkyl group or an aryl C ₁ -C ₆ alkyl group, wherein R ^IV and R ^V together with the nitrogen atom can form a 5-, 6- or 7-membered ring and m stands for a number 2, 3, 4, 5 or 6, - R ¹⁰ and R ¹² independently of one another represent a hydrogen atom or a C ₁ C ₆ alkyl group, wherein at least one of R ¹⁰ and R ^{12 is} a C ₁ -C ₆ alkyl group, - R ¹¹ is a hydrogen atom, a C ₁ -C ₆ -alk yl group, a C ₁ -C ₆ -hydroxyalkyl group, a C ₂ -C ₆ -polyhydroxyalkyl group, a C ₁ -C ₆ -alkoxy group, a C ₁ -C ₆ -hydroxyalkoxy group, a group R ^VI R ^VII N- (CH ₂ ) _q -, wherein R ^VI and R ^VII independently represent a hydrogen atom, a C ₁ -C ₆ -alkyl group, a C ₁ -C ₆ -hydroxyalkyl group or an aryl-C ₁ -C ₆ -alkyl group, and q represents a number 1, 2, 3, 4, 5 or 6, wherein the radical R ¹¹ together with one of the radicals R ¹⁰ or R ^{12 can form} a 5- or 6-membered aromatic ring which is optionally substituted by a halogen atom, a C ₁ -C ₆ alkyl group, a C ₁ -C ₆ hydroxyalkyl group, a C ₂ -C ₆ polyhydroxyalkyl group, a C ₁ -C ₆ alkoxy group, a C ₁ -C ₆ hydroxyalkoxy group, a nitro group, a hydroxy group, a group R ^VIII R ^{IX is} N- (CH ₂ ) _s -, wherein R ^VIII and R ^IX are each independently a hydrogen atom, a C ₁ -C ₆ alkyl group, a C ₁ -C ₆ hydroxyalkyl group or an arylC ₁ -C ₆ alkyl group and s is a number 0, 1, 2, 3, 4, 5 or 6 may be substituted, - Y is an oxygen atom, a sulfur atom or a group NR ^X , where R ^X is a hydrogen atom, an aryl group, a heteroaryl group, a C ₁ -C ₆ -alkyl group or a C ₁ -C ₆ -arylalkyl group, -X ^- represents a physiologically tolerable anion, - Het represents an optionally substituted heteroaromatic, - X ¹ represents a direct bond or a carbonyl group. Agent according to one of claims 1 to 6, characterized in that it contains as CH-acidic compound of component B 1H-benzimidazol-2-ylacetonitrile [2- (cyanomethyl) benzimidazole], and / or one or more compounds of a group of salts physiologically acceptable counterion X ^- , which is formed from salts of 1,2-dihydro-1,3,4,6-tetramethyl-2-oxo-pyrimidinium, 1,2-dihydro-1,3-diethyl-4,6 -dimethyl-2-oxopyrimidinium, 1,2-dihydro-1,3-dipropyl-4,6-dimethyl-2-oxopyrimidinium, 1,2-dihydro-1,3-di (2-hydroxyethyl) - 4,6-dimethyl-2-oxopyrimidinium, 1,2-dihydro-1,3-diphenyl-4,6-dimethyl-2-oxopyrimidinium, 1,2-dihydro-1,3,4-trimethyl- 2-oxo-pyrimidinium, 1,2-dihydro-1,3-diethyl-4-methyl-2-oxo-pyrimidinium, 1,2-dihydro-1,3-dipropyl-4-methyl-2-oxo-pyrimidinium, 1,2-dihydro-1,3-di (2-hydroxyethyl) -4-methyl-2-oxopyrimidinium, 1,2-dihydro-1,3-diphenyl-4-methyl-2-oxopyrimidinium, 1 Allyl-1,2-dihydro-3,4,6-trimethyl-2-oxo-pyrimidinium, 1,2-dihydro-1- (2-hydroxyethyl) -3,4, 6-trimethyl-2-oxo-pyrimidinium, 1,2-dihydro-1,3,4,6-tetramethyl-2-thioxo-pyrimidinium, 1,2-dihydro-1,3-diethyl-4,6-dimethyl 2-thioxo-pyrimidinium, 1,2-dihydro-1,3-dipropyl-4,6-dimethyl-2-thioxo-pyrimidinium, 1,2-dihydro-1,3-di (2-hydroxyethyl) -4,6 -dimethyl-2-thioxopyrimidiniums, 1,2-dihydro-1,3-diphenyl-4,6-dimethyl-2-thioxo-pyrimidiniums, 1,2-dihydro-1,3,4-trimethyl-2-thioxo -pyrimidinium, 1,2-dihydro-1,3-diethyl-4-methyl-2-thioxo-pyrimidinium, 1,2-dihydro-1,3-dipropyl-4-methyl-2-thioxo-pyrimidinium, 1,2 Dihydro-1,3-di (2-hydroxyethyl) -4-methyl-2-thioxopyrimidinium, 1,2-dihydro-1,3-diphenyl-4-methyl-2-thioxo-pyrimidinium, 1,2- Dihydro-3,4-dimethyl-2-oxo-quinazolinium and 1,2-dihydro-3,4-dimethyl-2-thioxo-quinazolinium. Composition according to one of claims 1 to 7, characterized in that it additionally contains as component C at least one reactive carbonyl compound which is selected from the group consisting of 4-hydroxy-3-methoxybenzaldehyde, 3,5-dimethoxy-4- hydroxybenzaldehyde, 4-hydroxy-1-naphthaldehyde, 4-hydroxy-2-methoxybenzaldehyde, 3,4-dihydroxy-5-methoxybenzaldehyde, 3,4,5-trihydroxybenzaldehyde, 3,5-dibromo-4-hydroxybenzaldehyde, 4-hydroxybenzaldehyde 3-nitrobenzaldehyde, 3-bromo-4-hydroxybenzaldehyde, 4-hydroxy-3-methylbenzaldehyde, 3,5-dimethyl-4-hydroxy-benzaldehyde, 5-bromo-4-hydroxy-3-methoxybenzaldehyde, 4-diethylamino-2- hydroxybenzaldehyde, 4-dimethylamino-2-methoxybenzaldehyde, 2-methoxybenzaldehyde, 3-methoxybenzaldehyde, 4-methoxybenzaldehyde, 2-ethoxybenzaldehyde, 3-ethoxybenzaldehyde, 4-ethoxybenzaldehyde, 4-hydroxy-2,3-dimethoxybenzaldehyde, 4-hydroxybenzaldehyde 2,5-dimethoxybenzaldehyde, 4-hydroxy-2,6-dimethoxybenzaldehyde, 4-hydroxy-2-methylbenzaldehyde, 4-hydroxy-2,3-dimethylbenzaldehyde, 4-hydroxy-2,5- dim ethylbenzaldehyde, 4-hydroxy-2,6-dimethylbenzaldehyde, 3,5-diethoxy-4-hydroxybenzaldehyde, 2,6-diethoxy-4-hydroxybenzaldehyde, 3-hydroxy-4-methoxybenzaldehyde, 2-hydroxy-4-methoxybenzaldehyde, 2-ethoxy-4-hydroxybenzaldehyde, 3-ethoxy-4-hydroxybenzaldehyde, 4-ethoxy-2-hydroxybenzaldehyde, 4-ethoxy-3-hydroxybenzaldehyde, 2,3-dimethoxybenzaldehyde, 2,4-dimethoxybenzaldehyde, 2,5-dimethoxybenzaldehyde, 2,6-dimethoxybenzaldehyde, 3,4-dimethoxybenzaldehyde, 3,5-dimethoxybenzaldehyde, 2,3,4-trimethoxybenzaldehyde, 2,3,5- Trimethoxybenzaldehyde, 2,3,6-trimethoxybenzaldehyde, 2,4,6-trimethoxybenzaldehyde, 2,4,5-trimethoxybenzaldehyde, 2,5,6-trimethoxybenzaldehyde, 2-hydroxybenzaldehyde, 3-hydroxybenzaldehyde, 4-hydroxybenzaldehyde, 2,3- Dihydroxybenzaldehyde, 2,4-dihydroxybenzaldehyde, 2,4-dihydroxy-3-methylbenzaldehyde, 2,4-dihydroxy-5-methylbenzaldehyde, 2,4-dihydroxy-6-methylbenzaldehyde, 2,4-dihydroxy- 3-methoxy-benzaldehyde, 2,4-dihydroxy-5-methoxy-benzaldehyde, 2,4-dihydroxy-6-methoxy-benzaldehyde, 2,5-dihydrox benzaldehyde, 2,6-dihydroxybenzaldehyde, 3,4-dihydroxybenzaldehyde, 3,4-dihydroxy-2-methylbenzaldehyde, 3,4-dihydroxy-5-methylbenzaldehyde, 3,4-dihydroxy-6-methylbenzaldehyde, 3,4-dihydroxy-2-methoxybenzaldehyde, 3,5-dihydroxybenzaldehyde, 2,3,4-trihydroxybenzaldehyde, 2,3,5-trihydroxybenzaldehyde, 2,3,6-trihydroxybenzaldehyde, 2,4,6-trihydroxybenzaldehyde, 2,4,5-trihydroxybenzaldehyde, 2,5,6-trihydroxybenzaldehyde, 4-dimethylaminobenzaldehyde, 4-diethylaminobenzaldehyde, 4-dimethylamino-2-hydroxybenzaldehyde, 4-pyrrolidinobenzaldehyde, 4-morpholinobenzaldehyde, 2-morpholinobenzaldehyde, 4- Piperidinobenzaldehyde, 3,5-dichloro-4-hydroxybenzaldehyde, 4-hydroxy-3,5-dodecarbaldehyde, 3-chloro-4-hydroxybenzaldehyde, 5-chloro-3,4-dihydroxybenzaldehyde, 5-bromo-3,4- dihydroxybenzalde hyd, 3-chloro-4-hydroxy-5-methoxybenzaldehyde, 4-hydroxy-3-iodo-5-methoxybenzaldehyde, 2-methoxy-1-naphthaldehyde, 4-methoxy-1-naphthaldehyde, 2-hydroxy-1-naphthaldehyde, 2,4-dihydroxy-1-naphthaldehyde, 4-hydroxy-3-methoxy-1-naphthaldehyde, 2-hydroxy-4-methoxy-1-naphthaldehyde, 3-hydroxy-4-methoxy-1-naphthaldehyde, 2,4- Dimethoxy-1-naphthaldehyde, 3,4-dimethoxy-1-naphthaldehyde, 4-dimethylamino-1-naphthaldehyde, 3-hydroxy-4-nitrobenzaldehyde, 2-hydroxy-3-methoxy-5-nitrobenzaldehyde, 5-nitrovanillin, 2, 5-dinitrosalicylaldehyde, 5-bromo-3-nitrosalicylaldehyde, 2-dimethylaminobenzaldehyde, 2-chloro-4-dimethylaminobenzaldehyde, 4-dimethylamino-2-methylbenzaldehyde, 4-diethylamino-cinnamaldehyde, 4-dibutylaminobenzaldehyde, 3-allyl-4 hydroxybenzaldehyde, 3-allyl-4-hydroxy-5-methoxybenzaldehyde, 3-allyl-4-hydroxy-5-methylbenzaldehyde, 3-allyl-5-bromo-4-hydroxybenzaldehyde, 3,5-diallyl-4-hydroxybenzaldehyde, 3 Allyl 4-hydroxy-5-formylbenzaldehyde (5-allyl-4-hydroxyisophthalaldehyde) and piperonal. Agent according to one of claims 1 to 8, characterized that the Compounds of formula I, the compounds of component B and optionally the compounds of component C in each case in an amount from 0.03 to 65 mmol, in particular from 1 to 40 mmol, based on 100 g of the total colorant included are. Agent according to one of claims 1 to 9, characterized that it color enhancers selected from the group consisting of piperidine, piperidine-2-carboxylic acid, piperidine-3-carboxylic acid, piperidine-4-carboxylic acid, pyridine, 2-hydroxypyridine, 3-hydroxypyridine, 4-hydroxypyridine, imidazole, 1-methylimidazole, Arginine, histidine, pyrrolidine, proline, pyrrolidone, pyrrolidone-5-carboxylic acid, pyrazole, Contains 1,2,4-triazole, piperazidine or any mixtures thereof. Agent according to one of claims 1 to 10, characterized in that it additionally contains oxidizing agent, in particular H ₂ O ₂ , in an amount of 0.01 to 6 wt .-%, based on the application solution. Agent according to one of claims 1 to 11, characterized that it additionally as oxidation dye precursor at least one developer component and optionally at least one coupler component. Agent according to one of claims 1 to 12, characterized that it additionally at least one substantive dye, preferably in one Amount of from 0.01 to 20% by weight, based on the total colorant, contains. Agent according to one of claims 1 to 13, characterized that it additionally contains anionic, zwitterionic or nonionic surfactants. Use of at least one compound according to formula I according to claim 1, in combination with at least one compound of the component B according to claim 1, as a coloring Component in hair dye. Dyeing process keratin-containing fibers, in particular human hair, in which a colorant, according to one the claims 1 to 14, as well as usual cosmetic ingredients applied to keratin fibers, some time, usually about 15-30 Minutes, left on the fiber and then rinsed out again or washed out with a shampoo. Method according to claim 16, characterized in that that the keratin-containing fibers before a colorant according to a the claims 1 to 14, as part of a pretreatment with a Bleaching agent bleached or with an oxidation dye colored were. Use of at least one compound according to formula I according to claim 1 together with at least one CH-acidic compound as a component B for the nuancing of oxidation dyeings of keratin-containing Fibers, in particular human hair. Use of at least one compound according to formula I according to claim 1 together with at least one CH-acidic compound as a component B for the color refreshment of keratin-containing dyed with oxidative colorants Fibers. Compound of the formula (V)

R _1, R _{2 and} R 3 independently of one another represent a hydrogen atom, a halogen atom, a C ₁ -C ₆ -alkyl group, a C ₂ -C ₆ -alkenyl group, a hydroxy group, a C ₁ -C ₆ -alkoxy group, a C ₁ - C ₆ hydroxyalkyl group, C ₂ -C ₆ polyhydroxyalkyl group, hydroxy (C ₁ -C ₆ ) alkyloxy group, carboxy group, (C ₁ -C ₆ ) alkoxycarbonyl group, hydroxy (C ₂ -C ₆ ) alkyloxycarbonyl group, a C ₂ -C ₆ acyl group, a formyl group, a nitro group, a group -C (O) -NR ⁴ R ⁵ , or a group - (CH ₂ ) _n NR ⁶ R ⁷ , wherein R ⁴ , R ⁵ , R ⁶ and R ⁷ independently of one another represent a hydrogen atom, a C ₁ -C ₆ -alkyl group or a C ₂ -C ₆ -hydroxyalkyl group and n is an integer from 0 to 6, where R ₁ and R _{2 are} a 5- or 6-membered Y is a group -OR ^I or -NR ^II R ^III , wherein R ^I , R ^II and R ^III are each independently a hydrogen atom, a C ₁ -C ₆ alkyl group e, C ₂ -C ₆ alkenyl group, a C ₂ -C ₆ hydroxyalkyl group, a C ₂ -C ₆ polyhydroxyalkyl group, a C ₁ -C ₆ alkoxy (C ₁ -C ₆ ) alkyl group, an aryl group, a heteroaryl group, an aryl- (C ₁ -C ₆ ) -alkyl group, a group - (CH ₂ ) _m NR ^6a R ^7a , in which R ^6a and R ^7a independently of one another represent a hydrogen atom, a C ₁ -C ₆ - alkyl group or a C ₂ -C ₆ hydroxyalkyl group, and m is an integer from 1 to 6, R ¹¹ represents a hydrogen atom, a C ₁ -C ₆ alkyl group, a C ₁ -C ₆ hydroxyalkyl group, a C ₂ -C ₆ polyhydroxyalkyl group, a C ₁ -C ₆ alkoxy group, a C ₁ -C ₆ hydroxyalkoxy group, a group R ^VI R ^VII N- (CH ₂ ) _q -, wherein R ^VI and R ^VII are each independently A hydrogen atom, a C ₁ -C ₆ -alkyl group, a C ₁ -C ₆ -hydroxyalkyl group or an aryl-C ₁ -C ₆ -alkyl group and q is a number 1, 2, 3, 4, 5 or 6, wherein the R ¹¹ together with the radical R ^{12 has} a 5- or 6-membered aroma which may optionally form a ring optionally substituted by a halogen atom, a C ₁ -C ₆ alkyl group, a C ₁ -C ₆ hydroxyalkyl group, a C ₂ -C ₆ polyhydroxyalkyl group, a C ₁ -C ₆ alkoxy group, a C ₁ -C ₆ -hydroxyalkoxy group, a nitro group, a hydroxy group, a group R ^VIII R ^IX N- (CH ₂ ) _s -, wherein R ^VIII and R ^IX independently represent a hydrogen atom, a C ₁ -C ₆ alkyl group, a C ₁ -C ₆ -hydroxyalkyl group or an aryl-C ₁ -C ₆ -alkyl group and s is a number 0, 1, 2, 3, 4, 5 or 6 may be substituted, R ¹² is a hydrogen atom or a C C ₁ -C ₆ -alkyl group, X ^- is a physiologically acceptable anion. Compound of the formula (VI)

wherein R1, R2, R3, R8, R9, Y and X ^- are as defined in claim 20th Compound of the formula (VII)

wherein R1, R2 and R3 are as defined in claim 20.