Clariant Finance (bvi) Limited

Clariant International Ltd

Weylchem Switzerland Ag

Melanie Sajitz

Michael Wessling

Werner Janitschek

Isabel Scheffer

Gerd Reinhardt

Peter Naumann

Barbara Duecker

Ina Herrgen

Steve Laborda

The invention relates to a method for producing acyloxy benzoic acids of the formula (I), in which Ris a linear or branched saturated alkyl group with 6 to 30 carbon atoms, a linear or branched mono- or polyunsaturated alkenyl group with 6 to 30 carbon atoms, or an aryl group with 6 to 30 carbon atoms. The acyloxy benzoic acids of the formula (I) are produced from para-hydroxy benzoic acid and a corresponding carboxylic acid halide in the presence of an alkali hydroxide. 

Method for producing acyloxy benzoic acids

The invention relates to a method for producing acyloxy benzoic acids of the formula (I), in which Ris a linear or branched saturated alkyl group with 6 to 30 carbon atoms, a linear or branched mono- or polyunsaturated alkenyl group with 6 to 30 carbon atoms, or an aryl group with 6 to 30 carbon atoms. The acyloxy benzoic acids of the formula (I) are produced from para-hydroxy benzoic acid and a corresponding carboxylic acid halogenide in the presence of a base and are advantageously suitable for use as activators for hydrogen peroxide. 

The invention relates to a method for producing 3,7-diaza-bicyclo[3.3.1]nonane metal complexes, wherein the ligand, a 3,7-diaza-bicyclo[3.3.1]nonane compound, is reacted with an aqueous metal(II)salt solution in one step. According to the invention, the reaction stage is carried out with water as solvent.

Method for producing 3,7-diaza-bicyclo[3.3.1]nonane metal complexes

The invention relates to a one-pot reaction for the production of 3,7-diaza-bicyclo[3.3.1]nonane compounds, wherein in a first step a dicarboxylic acid ester is reacted with a pyridine aldehyde and a primary amine. The piperidone created in this manner is reacted with formaldehyde and a further primary amine in a second step. It is essential to the invention that both reaction steps are carried out in a one-pot variation in a C-Calcohol as the solvent, and that the reaction water created is removed by means of distillation.

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Plettenberg, Germany

Melanie Sajitz