公开(公告)号：US20180044313A1

公开(公告)日：2018-02-15

申请号：US15555723

申请日：2016-03-04

Applicant: BASF SE

Inventor： STEFAN RUDENAUER ,  Timon STORK ,  Ralf PELZER ,  Volker HICKMANN ,  Margarethe KLOS

IPC: C07D309/12

CPC classification number: C07D309/12

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

公开(公告)号：US20170292084A1

公开(公告)日：2017-10-12

申请号：US15514101

申请日：2015-09-25

Applicant: BASF SE

Inventor： Timon STORK ,  Stefan RÜDENAUER ,  Margarethe KLOS ,  Ralf PELZER

IPC: C11B9/00 ,  C07D309/10 ,  A23L27/20

CPC classification number: C11B9/008 ,  A23L27/2052 ,  C07D309/10

Abstract: 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.

公开(公告)号：US20210403826A1

公开(公告)日：2021-12-30

申请号：US16753413

申请日：2018-10-05

Applicant: BASF SE

Inventor： Nicolas MARION ,  Rolf PINKOS ,  Stefan RUEDENAUER ,  Florian GARLICHS ,  Ralf PELZER ,  Roman DOSTALEK ,  Joachim PFEFFINGER ,  Anja VINCKIER ,  Stephanie RENZ ,  Christoph STOCK ,  Regina-Margareta BERG ,  Miriam BRU ROIG ,  Margarethe KLOS

IPC: C11B9/00 ,  C07D309/04

Abstract: 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.