FRAGRANCE COMPOSITION
    1.
    发明公开
    FRAGRANCE COMPOSITION 有权
    DUFTSTOFFZUSAMMENSETZUNG

    公开(公告)号:EP2905011A4

    公开(公告)日:2016-06-15

    申请号:EP13844169

    申请日:2013-09-30

    Abstract: The present invention relates to: a fragrance composition containing (3S)-(6E)-2,3-dihydrofarnesal having a chemical purity of 90 mass% or more and an optical purity of 50% e.e. or more; a cosmetic product containing the fragrance composition; and a method for improving an aroma using the fragrance composition.

    Abstract translation: 本发明涉及:具有化学纯度为90质量%以上且光学纯度为50%e.e的(3S) - (6E)-2,3-二氢法呢安的香料组合物。 或者更多; 含有香料组合物的化妆品; 以及使用香料组合物改善香气的方法。

    PROCESS FOR PRODUCING LARGE CYCLIC KETONE AND INTERMEDIATE THEREFOR
    6.
    发明公开
    PROCESS FOR PRODUCING LARGE CYCLIC KETONE AND INTERMEDIATE THEREFOR 有权
    一种用于生产大环酮和中间THEREFOR

    公开(公告)号:EP1845078A4

    公开(公告)日:2008-06-25

    申请号:EP04799627

    申请日:2004-11-11

    Abstract: A process for producing muscone by methyl addition to the 1,4-conjugation of 2-cyclopentadecenone. By the process, muscone is produced in high yield not under reaction conditions including an extremely low temperature and a low concentration but under practical conditions. The process comprises subjecting 2-cyclopentadecenone to a 1,4-conjugation addition reaction with an organometallic methylation reagent in the presence of a copper catalyst or nickel catalyst and an enol anion-trapping agent to obtain a 3-methyl-1-cyclopentadecene derivative represented by the general formula (II): (II) and then solvolyzing the enol moiety of this 3-methyl-1-cyclopentadecene derivative to obtain muscone.

    Abstract translation: 一种用于通过甲基除了两cyclopentadecenone的1,4-共轭生产麝香酮的过程。 通过的过程中,麝香酮以高产率生产不明白的反应条件包括在极低温度和低浓度,但实际条件下进行。 该方法包括使2- cyclopentadecenone到1,4-共轭加成反应与有机金属试剂的甲基化在铜或镍催化剂的存在下和烯醇阴离子捕捉剂,以获得由通式表示的3-甲基-1- cyclopentadecene衍生物 (II),然后溶剂分解的3-甲基-1- cyclopentadecene衍生物的烯醇基部分,以获得麝香酮。

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