PROCESS FOR THE PRODUCTION OF 4-ALKANOYLOXY-2-METHYLBUTANOIC ACID
    7.
    发明申请
    PROCESS FOR THE PRODUCTION OF 4-ALKANOYLOXY-2-METHYLBUTANOIC ACID 有权
    生产4-烷基-2-甲基丁酸的方法

    公开(公告)号:US20150099894A1

    公开(公告)日:2015-04-09

    申请号:US14401868

    申请日:2013-06-05

    摘要: The present invention relates to an improved process for the production of 4-alkanoyloxy-2-methylbutanoic acid, as well as to the use of such compounds in organic syntheses, especially in processes forming intermediates (building blocks) for the synthesis of organic compounds comprising isoprene (isoterpene) units, such as β-carotene or other carotenoids (e.g. canthaxanthin, zeaxanthin or astaxanthin) or as vitamin E or vitamin A as well as other structurally similar compounds.

    摘要翻译: 本发明涉及一种生产4-烷酰氧基-2-甲基丁酸的改进方法,以及这些化合物在有机合成中的用途,特别是在形成用于合成有机化合物的中间体(构成单元)的方法中的用途,所述方法包括 异戊二烯(异萜烯)单元,例如胡萝卜素或其他类胡萝卜素(例如角黄素,玉米黄质或虾青素)或维生素E或维生素A以及其它结构类似的化合物。

    CATALYTIC SYNTHESIS OF VITAMIN A INTERMEDIATE
    9.
    发明申请
    CATALYTIC SYNTHESIS OF VITAMIN A INTERMEDIATE 有权
    维生素A中间体的催化合成

    公开(公告)号:US20150031910A1

    公开(公告)日:2015-01-29

    申请号:US14368914

    申请日:2012-12-14

    IPC分类号: C07C67/29

    摘要: The present invention relates to a process of production of a compound, which is useful as an intermediate (building block) in organic synthesis, especially in the synthesis of vitamin A or β-carotene and derivatives thereof, e.g. canthaxanthin, astax-anthin or zeaxanthin.

    摘要翻译: 本发明涉及一种化合物的制备方法,其可用作有机合成中的中间体(结构单元),特别是合成维生素A或其组合物 - 胡萝卜素及其衍生物。 角黄素,阿斯泰沙星或玉米黄质。