METHOD FOR PREPARING METHYL ISOBUTYL KETONE
    1.
    发明公开

    公开(公告)号:US20240351969A1

    公开(公告)日:2024-10-24

    申请号:US18761961

    申请日:2024-07-02

    申请人: SENNICS CO., LTD.

    IPC分类号: C07C49/04

    摘要: A method for preparing methyl isobutyl ketone comprises reacting mesityl oxide and methyl isobutyl alcohol under the action of a copper-based catalyst to produce methyl isobutyl ketone, where mesityl oxide and methyl isobutyl alcohol are employed to carry out hydrogen in-situ transfer under the action of the copper-based catalyst, and methyl isobutyl ketone is prepared in one step. The entire reaction process does not require an external hydrogen system. The reaction is carried out under normal pressure, and the process flow is short. The reaction has high atom utilization, high safety, and is suitable for popularization and industrial application.

    Hydrogenation of ketones having at least a carbon-carbon double bond in the γ,δ-position
    7.
    发明授权
    Hydrogenation of ketones having at least a carbon-carbon double bond in the γ,δ-position 有权
    在γ,δ位具有至少碳 - 碳双键的酮的氢化

    公开(公告)号:US09181163B2

    公开(公告)日:2015-11-10

    申请号:US14125954

    申请日:2012-06-13

    摘要: The present invention relates in a first aspect to a process for hydrogenation of ketones having at least a carbon-carbon double bond in the y,8-position to the keto group by hydrogen in the presence of at least one chiral iridium complex of formula (I), where R1 represents a group of formula (II) or (III) or (IV). It has been shown that this process leads to a strong increase in preferential formation of a single isomer. The process is particularly suitable for the hydrogenation of y,8-unsaturated ketones which can be used as flavors and fragrances or for the preparation of vitamin E and its derivatives or of flavors and fragrances.

    摘要翻译: 本发明在第一方面涉及在至少一种式(I)的手性铱络合物(式 I),其中R 1表示式(II)或(III)或(IV)的基团。 已经表明,该方法导致单一异构体优先形成的强烈增加。 该方法特别适用于可用作香料和香料的y,8-不饱和酮的氢化,或用于制备维生素E及其衍生物或香料和香料的方法。