Agent for oxidatively dyeing keratin fibers, containing at least one oxidation dye precursor of the developer type and isatin

A multi-component packaging unit for oxidatively dyeing keratinous fibers, the multi-component packaging unit comprising:

• a first container containing a dyeing agent, the dyeing agent comprising:
• at least one oxidation dye precursor of the developer type selected from the group consisting of p-toluylene diamine, 2-methoxymethyl-p-phenylene diamine, 2-(2-hydroxy-ethyl)-p-phenylene diamine, N,N-bis-(2-hydroxyethyl)-p-phenylene diamine, p-phenylene diamine, 4-amino-3-methylphenol, p-aminophenol, 4,5-diamino-1-(2-hydroxyethyl) pyrazole, and physiologically tolerated salts thereof,
• isatin,
• at least one alkalizing agent selected from the group consisting of ammonia, monoethanolamine, 2-amino-2-methylpropanol, arginine, lysine, ornithine, and histidine, and
• at least one oxidation dye precursor of the coupler type selected from the group consisting of 3-aminophenol, 5-amino-2-methylphenol, 3-amino-2-chloro-6-methylphenol, 2-hydroxy-4-aminophenoxyethanol, 5-amino-4-chloro-2-methylphenol, 5-(2-hydroxyethyl)amino-2-methylphenol, 2,4-dichloro-3-aminophenol, 2-aminophenol, 3-phenylene diamine, 2-(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′-hydroxyethyl)-1-methylbenzene, 1-amino-3-bis(2-hydroxyethyl)aminobenzene, 2-amino-3-hydroxypyridine, 3-amino-2-methylamino-6-methoxypyridine, 2,6-dihydroxy-3,4-dimethylpyridine, 3,5-diamino-2,6-dimethoxypyridine, 1-phenyl-3-methylpyrazol-5-one, 1-naphthol, 1,5-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 1,8-dihydroxynaphthalene, 4-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole, 4-hydroxyindoline, 6-hydroxyindoline, 7-hydroxyindoline, any physiologically tolerated salt thereof, and any mixture thereof;
• and
• a second container containing an oxidizing agent composition, the oxidizing agent composition comprising:
• at least one oxidizing agent from the group consisting of hydrogen peroxide and its addition products to organic or inorganic compounds,
• wherein the first container and the second container are packaged separately from one another.