PROCESS FOR PREPARING BETA-KETOESTER FRAGRANCE PRO-ACCORDS FROM 1,3-DIOXAN-4,6-DIONES
    7.
    发明公开
    PROCESS FOR PREPARING BETA-KETOESTER FRAGRANCE PRO-ACCORDS FROM 1,3-DIOXAN-4,6-DIONES 有权
    由1,3-二氧杂环己烷-4,6-二酮制备β-酮酯香料辅助物的方法

    公开(公告)号:EP1023260A1

    公开(公告)日:2000-08-02

    申请号:EP98938853.3

    申请日:1998-08-28

    摘要: The present invention relates to methods for preparing β-ketoester fragrance pro-accords from activated acyl units, 1,3-dioxan-4,6-diones and fragrance raw material alcohols. The first step of the disclosed process involves contacting an activated acyl unit, preferably an acid chloride, with a 1,3-dioxan-4,6-dione, an example of which is Meldrum's acid, to form a 2-acyl 1,3-dioxan-4,6-dione which is then reacted with a fragrance raw material alcohol to form the final β-ketoester fragrance pro-accord. The resulting β-ketoester fragrance pro-accords are suitable for use in laundry detergent, personal care, and other formulations wherein aesthetic fragrance materials are employed.

    摘要翻译: 本发明涉及由活化的酰基单元,1,3-二恶烷-4,6-二酮和香料原料醇制备β-酮酯香料前体香料的方法。 所公开的方法的第一步包括使活化的酰基单元,优选酰基氯与1,3-二恶烷-4,6-二酮(其一个例子是米尔德鲁姆酸)接触以形成2-酰基1,3 然后将其与香料原料醇反应以形成最终的β-酮酯香料前体。 所得到的β-酮酯香料前体适合用于洗衣洗涤剂,个人护理和其中使用美学香料的其它制剂。