METHODS OF MAKING PYRROLIDONES
    4.
    发明公开
    METHODS OF MAKING PYRROLIDONES 有权
    用于生产吡咯烷酮

    公开(公告)号:EP1412329A1

    公开(公告)日:2004-04-28

    申请号:EP02756233.9

    申请日:2002-06-17

    IPC分类号: C07D207/26

    摘要: The present invention provides methods for making N-methylpyrrolidine and analogous compounds via hydrogenation. Novel catalysts for this process, and novel conditions/yields are also described. Other process improvements may include extraction and hydrolysis steps. Some preferred reactions take place in the aqueous phase. Starting materials for making N-methylpyrrolidine may include succinic acid, N-methylsuccinimide, and their analogs.