VERFAHREN ZUR HYDRIERUNG VON C-C-DOPPELBINDUNGEN
    2.
    发明公开
    VERFAHREN ZUR HYDRIERUNG VON C-C-DOPPELBINDUNGEN 审中-公开
    C-C双键的方法加氢

    公开(公告)号:EP1339657A1

    公开(公告)日:2003-09-03

    申请号:EP01976063.6

    申请日:2001-08-09

    申请人: MERCK PATENT GmbH

    IPC分类号: C07C5/02 C07D495/04

    CPC分类号: C07D495/04

    摘要: The invention relates to a mild catalytic hydrogenation method and to a method for producing biotin, using the hydrogenation step. The inventive method for the selective, catalytic hydrogenation of a C-C double bond on a thiazole ring system, comprising at least one functional group that can be salinized in an alkaline manner, is characterized in that the hydrogenation is carried out in a protic solvent at a pH value > 7.