Preparation of 2-keto-L-gulonic esters
    26.
    发明授权
    Preparation of 2-keto-L-gulonic esters 失效
    2-酮-L-古洛糖酯的制备

    公开(公告)号:US06573400B1

    公开(公告)日:2003-06-03

    申请号:US09636825

    申请日:2000-08-14

    IPC分类号: C07C6966

    CPC分类号: C07H7/027

    摘要: C1-C10-alkyl 2-keto-L-gulonates are prepared by esterifying 2-keto-L-gulonic acid or diacetone-2-keto-L-gulonic acid with a C1-C10-alcohol in the presence of an acidic catalyst by a process in which the esterification is carried out in a liquid film on a hot surface with simultaneous removal of water.

    摘要翻译: 通过在酸性催化剂存在下用C1-C10醇将2-酮-L-古洛糖酸或双丙酮-2-酮-L-古洛糖酸酯化,制备2-酮-L-古洛糖化物的C 1 -C 10烷基酯 其中在热表面上的液膜中进行酯化同时除去水的方法。