METHOD FOR PRODUCING OF 2-ALKYL-2-CYCLOALKEN-1-ONE
    8.
    发明公开
    METHOD FOR PRODUCING OF 2-ALKYL-2-CYCLOALKEN-1-ONE 有权
    VERFAHREN ZUR HERSTELLUNG VON 2-ALKYL-2-CYCLOALKEN-1-ONE

    公开(公告)号:EP2266943A1

    公开(公告)日:2010-12-29

    申请号:EP09729798.0

    申请日:2009-04-02

    Abstract: The present invention relates to [1] a process for producing a 2-alkyl-2-cycloalken-1-one represented by the following general formula (2), which includes the step of subjecting a 2-(1-hydroxyalkyl)cycloalkan-1-one to dehydration and isomerization in the co-existence of an acid and a platinum group metal catalyst, and [2] a process for producing an alkyl(3-oxo-alkylcycloalkyl)acetate which is useful as a perfume material, using the 2-alkyl-2-cycloalken-1-one:

    wherein n is an integer of 1 or 2; and R 1 and R 2 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms with the proviso that R 1 and R 2 may form a ring through a carbon atom adjacent thereto.

    Abstract translation: 本发明涉及[1]一种由以下通式(2)表示的2-烷基-2-环烯烃-1-酮的制备方法,其包括使2-(1-羟烷基)环烷烃-1-酮 1-酮在酸和铂族金属催化剂的共存下脱水和异构化,[2]制备可用作香料的烷基(3-氧代 - 烷基环烷基)乙酸酯的方法,使用 2-烷基-2-环烯烃-1-酮:其中n是1或2的整数; R 1和R 2各自独立地为氢原子或具有1至8个碳原子的烷基,条件是R 1和R 2可以通过与其相邻的碳原子形成环。

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