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

    公开(公告)号:US10160931B2

    公开(公告)日:2018-12-25

    申请号:US15514101

    申请日:2015-09-25

    申请人: BASF SE

    IPC分类号: C11B9/00 C07D309/10 A23L27/20

    摘要: 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.

    Process for the preparation of 2 substituted tetrahydropyranols
    7.
    发明授权
    Process for the preparation of 2 substituted tetrahydropyranols 有权
    制备2取代四氢吡喃醇的方法

    公开(公告)号:US09428481B2

    公开(公告)日:2016-08-30

    申请号:US14242956

    申请日:2014-04-02

    申请人: BASF SE

    IPC分类号: C07D309/10

    CPC分类号: C07D309/10 Y02P20/582

    摘要: The present invention relates to a process for the preparation of 2-substituted 4-hydroxy-4-methyltetrahydropyrans by reacting 3-methylbut-3-en-1-ol (isoprenol) with the corresponding alkenealdehydes in the presence of a strongly acidic ion exchanger with subsequent hydrogenation. Specifically, the present invention relates to a corresponding process for the preparation of 2-isobutyl-4-hydroxy-4-methyltetrahydropyran by reacting isoprenol with prenal, with subsequent hydrogenation.

    摘要翻译: 本发明涉及通过在强酸性离子交换剂存在下使3-甲基丁-3-烯-1-醇(异戊二醇)与相应的烯醛反应来制备2-取代的4-羟基-4-甲基四氢吡喃的方法 随后进行氢化。 具体地,本发明涉及通过使异戊二烯与前体反应制备2-异丁基-4-羟基-4-甲基四氢吡喃的相应方法,随后进行氢化。