Basf Se Corporation

Margarethe Klos

Ralf Pelzer

Stefan Rüdenauer

Timon Stork

Rolf Pinkos

Wolfgang Krause

Florian Garlichs

Miriam Bru Roig

Gabriele Gralla

Joachim Pfeffinger

Roman Dostalek

Ulrich Griesbach

Volker Hickmann

Karl Beck

Christoph Stock

Stephanie Renz

Stefan Ruedenauer

Nicolas Marion

Anja Vinckier

Regina-Margareta Berg

The present invention relates to aroma chemical compositions containing 3,5-diethyl-2-propyl-tetrahydropyran, a 3,5-diethyl-2-propyl-dihydropyran or a 3,5-diethyl-2-propyl-pyran, a mixture of such compounds, a stereoisomer of one of these compounds, or a mixture of stereoisomers of one or more of these compounds. The invention further relates to a method for preparing such compounds, stereoisomers or mixtures thereof, to the composition obtainable by this method, to the use of such compounds as an aroma chemical or for modifying the scent character of a fragranced composition; and to a method for preparing a fragranced composition or for modifying the scent character of a fragranced composition using said compounds. Moreover, the invention relates to 3,5-diethyl-2-propyl-tetrahydropyran, to its stereoisomers and to mixtures of these stereoisomers.

Aroma chemical compositions containing 3,5-diethyl-2-propyl-tetrahydropyran and/or unsaturated derivatives thereof

The present invention relates to the use of isomerically pure or highly isomerically enriched cis- or trans-(2-isobutyl-4-methyltetrahydropyran-4-yl) acetate for use as aroma chemicals. The invention further relates to a process for the preparation of isomerically pure or highly isomerically enriched cis- or trans-(2-isobutyl-4-methyltetrahydropyran-4-yl) acetate and the products obtainable by this process. The invention further relates to a fragrance or aroma substance composition which comprises isomerically pure or highly isomerically enriched cis- or trans-(2-isobutyl-4-methyltetra-hydropyran-4-yl) acetate, a method for imparting, and/or boosting an odor or taste of a product, and also perfumed or aromatized products which comprise isomerically pure or highly isomerically enriched cis- or trans-(2-isobutyl-4-methyltetrahydropyran-4-yl) acetate.

Use of isomerically pure or highly isomer-enriched cis- or trans-(2-isobutyl-4-methyl-tetrahydropyran-4-yl)acetate

The present invention relates to a method for preparing tetrahydropyranyl esters from the corresponding 4-hydroxytetrahydropyran compounds by reaction with a ketene compound.

Method for producing tetrahydropyranyl esters

Process for the preparation of 2-substituted 4-hydroxy-4-methyltetrahydropyrans of the formula (I)  

Process for the preparation and isolation of 2-substituted tetrahydropyranols

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Bobenheim-Roxheim, Germany

Margarethe Klos