Clariant International Ltd

Weylchem Switzerland Ag

Isabel Scheffer

Melanie Sajitz

Werner Janitschek

Gerd Reinhardt

Ina Herrgen

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. 

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Frankfurt-am-Main, Germany

Isabel Scheffer