Enantiomeric resolution
    1.
    发明授权
    Enantiomeric resolution 失效
    对映体分辨率

    公开(公告)号:US5256816A

    公开(公告)日:1993-10-26

    申请号:US960989

    申请日:1992-10-14

    IPC分类号: C07B57/00 C07C51/487

    CPC分类号: C07C51/487 C07B57/00

    摘要: A process for obtaining a substantially pure enantiomer of an aryl-substituted aliphatic carboxylic acid is described. In this process, the aryl-substituted aliphatic carboxylic acid is reacted with an inorganic base in the presence of an organic base to substantially enrich the precipitate in one of the enantiomers and an improved yield. Substantially pure, enantiomeric salt is separated, leaving a mother liquor comprising the solvent and aryl-substituted aliphatic carboxylic acid enriched in the other enantiomer.

    摘要翻译: 描述了获得芳基取代的脂肪族羧酸的基本上纯的对映异构体的方法。 在该方法中,芳基取代的脂族羧酸在有机碱的存在下与无机碱反应,以使其中一种对映异构体中的沉淀物基本上富集,并提高了收率。 分离基本上纯的对映异构体盐,留下含有溶剂的母液和富集在另一对映异构体中的芳基取代的脂族羧酸。