Method for production of dicarboxylic acid and lactone
    3.
    发明授权
    Method for production of dicarboxylic acid and lactone 失效
    二羧酸和内酯的生产方法

    公开(公告)号:US5136055A

    公开(公告)日:1992-08-04

    申请号:US754070

    申请日:1991-09-03

    IPC分类号: C07C57/26 C07D493/08

    CPC分类号: C07D493/08 C07C57/26

    摘要: A 21-carbon aliphatic branched chain dicarboxylic acid and a 21-carbon lactone are produced by reacting fatty acid (which contains linoleic acid) with acrylic acid via iodine catalysis, and subsequently removing from the low monomer reaction product the resulting C-21 lactone via solvent extraction with acetonitrile and hexane or heptane. The reaction products are distilled to yield dicarboxylic acid and lactone of high purity.

    摘要翻译: 使脂肪酸(含有亚油酸)与丙烯酸通过碘催化反应生成21-碳脂肪族支链二羧酸和21-碳内酯,然后从低级单体反应产物中除去所得C-21内酯通过 用乙腈和己烷或庚烷溶剂萃取。 蒸馏反应产物,得到高纯度的二羧酸和内酯。