Fulvene purification
    9.
    发明授权
    Fulvene purification 有权
    富烯净化

    公开(公告)号:US07572948B2

    公开(公告)日:2009-08-11

    申请号:US11803864

    申请日:2007-05-16

    IPC分类号: C07C7/10

    摘要: The present invention provides a method of removing undesired isomers, including substituted cyclopentadiene regioisomers, from the desired fulvene in a crude fulvene composition by selectively reacting the undesired isomers with pyrrolidine and 4-(N,N-dimethylamino)benzaldehyde. This reaction converts the undesired substituted cyclopentadienes into fulvene-type compounds that is readily separated from the desired fulvene.

    摘要翻译: 本发明提供了通过选择性地使不想要的异构体与吡咯烷和4-(N,N-二甲基氨基)苯甲醛反应,从粗制富烯组合物中的期望的富烯除去不需要的异构体,包括取代的环戊二烯区域异构体的方法。 该反应将不需要的取代的环戊二烯转化成容易与期望的富烯分离的富烯型化合物。