Abstract: The object of the present patent application are agents for the oxidative coloring of keratin fibers, particularly hair, based on a developer substance-coupler substance combination, characterized in that they contain at least one meta-aminophenol derivative of general formula (I) wherein R1 denotes hydrogen, a C1-C6 alkyl group, a C2-C4 hydroxyalkyl group, a C2-C4 dihydroxyalkyl group, a C1-C4 alkoxy group or a halogen atom; and R2 denotes hydrogen, a hydroxy group, a carboxylic group, an aminocarbonyl group or a hydroxymethyl group.

Abstract: Colorant for keratin fibers containing cationic indazoline thiazolazo dyes of the general formula (I).

Abstract: A process for the preparation of 4-hydroxyalkylamino-2-nitro-anisoles of the general formula (I) wherein m is 2 or 3; by reaction of a 4-halogeno-3-nitro-aniline of formula (II) with a chloroalkyl-chloroformate of formula (III), alkaline ring closure of the resulting carbamate and nucleophilic replacement of the halogeno atom by a methoxy group to form a derivative of formula (IV), and finally ring opening of the resulting cyclic carbamate by treatment with methanolic alkali metal hydroxide, followed by neutralization with inorganic or organic acids, wherein the complete reaction is executed in a non-aqueous medium; as well as process for the preparation of 2-amino-4-hydroxyalkylamino-anisoles of formula (V)

Abstract: The present invention relates to agents for coloring keratin fibers which comprise at least one zwitterionic azo dye of the general formula (I) where R1 is an alkylsulfonate radical of the formula (II),

Abstract: The objects of the present invention are novel cationic azo azine dyes of the generic formula (I), as well as colorants for keratin fibers that contain these compounds.

Abstract: Colorant for Keratin Fibers Containing Cationic Indazoline Thiazolazo Dyes of the General formula (I).

Abstract: The invention relates to resource operating medium compositions containing additivated lubricants based on polyalkylene glycols and/or neopentyl polyol esters, which are additivated with alkylated triaryl phosphate esters which are suitable for lubricating refrigerators, air-conditioning systems, heat pumps and similar systems which are operated using carbon dioxide as an operating medium.

Abstract: A process for the preparation of 4-hydroxyalkylamino-2-nitro-anisoles of the general formula (I) wherein m is 2 or 3; by reaction of a 4-halogeno-3-nitro-aniline of formula (II) with a chloroalkyl-chloroformate of formula (III), alkaline ring closure of the resulting carbamate and nucleophilic replacement of the halogeno atom by a methoxy group to form a derivative of formula (IV), and finally ring opening of the resulting cyclic carbamate by treatment with methanolic alkali metal hydroxide, followed by neutralization with inorganic or organic acids, wherein the complete reaction is executed in a non-aqueous medium; as well as process for the preparation of 2-amino-4-hydroxyalkylamino-anisoles of formula (V).

Abstract: The present invention relates to agents for coloring keratin fibers which comprise at least one zwitterionic azomethine dye of the general formula (I), (II), or (III) in which z is a heterocycle of the formula in which R8 is an alkyl sulfonate radical of the formula (XIII);

Abstract: The present invention relates to agents for coloring keratin fibers which comprise at least one cationic azodye of the general formula (I).

Abstract: The present invention relates to agents for coloring keratin fibers which comprise at least one cationic azodye of the general formula (I).

Abstract: p-Diaminobenzene derivatives of the general Formula (I) or their physiologically compatible, water-soluble salts, as well as dyes for keratin fibers that contain these compounds.

Abstract: The object of the present invention is novel o-aminophenol derivatives of Formula (I), or physiologically compatible water-soluble salts thereof, as well as an agent for the coloring of keratin fibers, especially of hair, which contains at least one o-aminophenol derivative of Formula (I).

Abstract: 1,3-Diaminophenol derivatives of the general formula (I) or the physiologically compatible, water-soluble salts thereof, and composition for the oxidative dyeing of keratin fibers comprising these compounds.

Abstract: 4-Aminophenol derivative of the general formula (I) or physiologically compatible, water-soluble salt thereof, and agent comprising these compounds for the oxidative dyeing of keratin fibers.

Abstract: The objects of the present invention are novel cationic azo azine dyes of the generic formula (I), as well as colorants for keratin fibers that contain these compounds.

Abstract: The object of the present patent application are agents for the oxidative coloring of keratin fibers, particularly hair, based on a developer substance-coupler substance combination, characterized in that they contain at least one meta-aminophenol derivative of general formula (I) wherein R1 denotes hydrogen, a C1-C6 alkyl group, a C2-C4 hydroxyalkyl group, a C2-C4 dihydroxyalkyl group, a C1-C4 alkoxy group or a halogen atom; and R2 denotes hydrogen, a hydroxy group, a carboxylic group, an aminocarbonyl group or a hydroxymethyl group.

Abstract: 3-Amino-2-aminomethylphenol derivatives of the general formula (I) or physiologically compatible, water-soluble salts thereof, and agent comprising these compounds for the oxidative coloring of keratin fibers.

Abstract: The object of the present patent application are new 2-amino-5-aminomethyl-phenol derivatives of general formula (I) and colorants for oxidative dyeing of keratin fibers, particularly human hair, containing at least one 2-amino-5-aminomethyl-phenol derivative of formula (I) as dye component; wherein R1 denotes a five-membered or a six-membered heterocyclic ring, substituted or unsubstituted, or a physiologically tolerated, water-soluble salt thereof, and wherein R1 is not an unsubstituted 3-pyridinyl ring.

Abstract: The present invention relates to agents for coloring keratin fibers which comprise at least one zwitterionic azo dye of the general formula (I) where R1 is an alkylsulfonate radical of the formula (II),