Basf Aktiengesellschaft

Volker Bomm

Volker Schehlmann

Horst Westenfelder

Wolfgang Siegel

Martin Fischer

Sylke Haremza

Thorsten Habeck

Klaus Mundinger

Thomas W&uuml;nsch

Jakob Fischer

Michael Dr&ouml;gem&uuml;ller

Klaus Harth

Johannes Grimmer

Nicola Christiane Aust

Helge Wessel

Thomas M&uuml;ller

Verena Seitz

Catalysts for preparing carboxylic acid salts from alcohols which

Catalysts for producing carboxylic acid salts

Selective reduction of alkyne compounds

Cosmetic and pharmaceutical preparations containing photostable UV filters

1,3-Dimethylimidazolium 4-carboxylate is prepared by reacting 1-methylimidazole with dimethyl carbonate optionally in the presence of a solvent in accordance with the following reaction scheme:

Process for the preparation of 1,3-dimethylimidazolium 4-carboxylate

In a process for preparing 3-cyano-3,5,5-trimethylcyclohexanone by reacting isophorone with hydrogen cyanide at from 80 to 220.degree. C. in the presence of a catalyst, the reaction is carried out in the presence of the betaine 1,3-dimethylimidazolium-4-carboxylate.

Preparation of 3-cyano-3, 5, 5-trimethylcyclohexanone

Arylaminomethylenecamphor derivatives of the formula (1) ##STR1## where the C.dbd.C double bond is in the Z or E configuration, and the variables have the following meanings:

Arylaminomethylenecamphor derivatives

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Mutterstadt, Germany

Volker Bomm