Givaudan Corporation

Trudi Sigg-Grutter

Jost Wild

Dietmar Lamparsky

Peter Schudel

Daniel Helmlinger

Georg Frater

Hanspeter Schenk

Daniel Helminger

Klaus-Jurgen Ploner

Humulones (I) are made by subjecting desoxyhumulones (II) to oxidation to form novel hydroperoxides (III) and reducing the latter. The humulones are used to make known isohumulones (IV) which are bitter substances useful in the beverage industry.

Process for making humulones and novel intermediates therefor

Certain allylmercaptans, some of which are novel, can be used to make novel flavorant and fragrance compositions. A novel method for making the allylmercaptans is disclosed.

Process for making allylmercaptan

Hydroperoxy-desoxyhumulones

The preparation and use of the novel 3,7-dimethyl-octa-2,6-dienyl-mercaptan as a new odorant and flavorant is disclosed.

Flavoring with 3,7-dimethyl-octa-2,6-dienyl-mercaptan

Novel cycloaliphatic ketones, a process for making them and odorant and/or flavoring compositions containing the ketones are described.

Cycloaliphatic ketones, process for making same and odorant and

3,7-Dimethyl-octa-2,6 dienyl-mercaptan perfume composition

Unsaturated compounds of the general formula: ##SPC1## Wherein R is defined hereinafter are prepared.

Process for making 1,3-diene hydrocarbons

There are disclosed novel .beta.-mercapto carboxylic acid esters and methods of producing the same. These novel esters are useful as odorants and flavorants.

Growing community of inventors

Winterthur, Switzerland

Trudi Sigg-Grutter