Abstract: The object of the present invention are 4-nitro-2,1,3-benzoxadiazole derivatives and 4-nitro-2,1,3-benzthiadiazole derivatives of the general Formula (I) 1

Abstract: New substituted 2,5-diamino-1-aminomethylbenzene compounds of formula (I), or physiologically compatible water-soluble salts thereof, are described as well as methods for preparing them. In addition, oxidation dye precursor compositions for dyeing keratin fibers, especially human hair, which each contain from 0.005 to 20 percent by weight of at least one of the new substituted 2,5-diamino-1-aminomethylbenzene compounds of formula (I), or their physiologically compatible water-soluble salts, are described. Methods for dyeing hair with ready-to-apply dye mixtures made by mixing these oxidation dye precursor compositions with an oxidizing agent, such as hydrogen peroxide solution, are also described.

Abstract: The present patent application relates to 3-(2,5-diaminophenyl)acrylamide derivatives of general formula (I) or to physiologically tolerated, water-soluble-salts thereof 1

Abstract: Diaminopyrazole derivatives of the general Formula (I) or their physiological tolerated, water-soluble salts with inorganic or organic acids, and agents, containing these compounds, for the oxidative dyeing of fibers.

Abstract: The p-aminophenol derivative compounds of formula (I), or their physiologically compatible water-soluble salts: are useful as developer compounds in oxidation dye compositions for keratin fibers. Oxidation dye compositions for keratin fibers, including hair, and methods of dyeing hair using the p-aminophenol derivative compounds are also described.

Abstract: 1,4-Diamino-2-alkenylbenzene derivatives of general formula (I) or physiologically tolerated water-soluble salts thereof 1

Abstract: 1,4-Diamino-2-(thiazol-2-yl)benzene derivatives of general formula (I) and the physiologically tolerated, water-soluble salts thereof 1

Abstract: Diaminopyrazole derivatives of the general Formula (I) or their physiological tolerated, water-soluble salts with inorganic or organic acids, 1

Abstract: The object of the invention are p-aminophenol derivatives of general formula (I) or physiologically tolerated, water-soluble salts thereof 1

Abstract: New substituted 2,5-diamino-1-aminomethylbenzene compounds of formula (I), or physiologically compatible water-soluble salts thereof, 1

Abstract: The object of the present invention are diketopyrrolopyrroles of the general formula (I) wherein, independently of one another, Q1 and Q2 represent an optionally substituted, aromatic, isocyclic or heterocyclic group with 5 to 14 atoms in the ring, the heterocyclic group containing at least one oxygen, nitrogen or sulfur atom, and the R1 and R2 groups, independently of one another represent hydrogen or a Y—B+A− group, with the proviso that at least one of the R1 and R2 groups is not hydrogen; B+ is an aromatic, aliphatic, alicyclic, aromatic heterocyclic or non-aromatic heterocyclic, quaternary ammonium group or a quaternary phosphonium group; Y is an optionally substituted linear or branched C1 to C6 alkylene group and A− is an anion; a method for their synthesis as well as agents, containing compounds of formula (I), for dyeing keratin fibers.

Abstract: Colorants for keratin fibers containing 1,3-diamino-4-heteroarylbenzene derivatives of general formula (I) or the physiologically tolerated salts thereof 1

Abstract: The method of dyeing keratin fibers includes the steps of providing an oxidation dye precursor composition containing from 0.01 to 10 percent by weight of a total amount of at least one coupler compound and at least one developer compound, mixing the oxidation dye precursor composition with an oxidizing agent and applying the resulting mixture to the keratin fibers. The oxidation dye precursor composition is characterized by containing 1,4-diamino-2-methoxymethylbenzene, or a physiologically compatible salt thereof, either alone as sole developer compound, or in combination with other known developer compounds. The oxidation dye precursor composition can also contain at least one direct-dyeing dye compound and conventional cosmetic additive ingredients.

Abstract: The object of the present invention is an agent for dyeing fibers obtained by mixing two components and characterized in that one component (component A2) contains at least one carbonyl compound and the other component (component A1) contains at least one indoline derivative of formula (I) or a 3H-indoline derivative of formula (Ia) 1

Abstract: The oxidation dye precursor-containing composition for oxidative dyeing of hair, includes from 0.

Abstract: The object of the invention are N-heteroarylmethyl-p-phenylenediamine derivatives of the general formula (I) or their physiologically tolerated salts, 1

Abstract: The oxidation hair dye precursor composition contains from 0.005 to 20.0 percent by weight of at least one coupler compound and from 0.005 to 20.

Abstract: The object of the present invention are diketopyrrolopyrroles of the general formula (I) 1

Abstract: A process is described for making 1,4-diamino-2-methoxymethylbenzene of formula (I), or a physiologically compatible salt of 1,4-diamino-2-methoxy-methylbenzene, of formula (I): 1

Abstract: The present invention relates to an agent for dyeing keratin fibers, containing at least one compound with a nucleophilic reaction center, at least one alcohol from the group comprising aryl alcohol derivatives and benzyl alcohol derivatives and at least one suitable oxidizing enzyme, as well as to a method for dyeing keratin fibers using this agent.