Process for fluorination of uracil
    6.
    发明授权
    Process for fluorination of uracil 失效
    尿素流出过程

    公开(公告)号:US4082752A

    公开(公告)日:1978-04-04

    申请号:US792223

    申请日:1977-04-29

    IPC分类号: C07D239/54 C07D239/553

    CPC分类号: C07D239/553

    摘要: An improved process for fluorination of uracil, which comprises treating uracil with fluorine which is optionally diluted with an inert gas (e.g. nitrogen gas) at a temperature of -10.degree. to 15.degree. C in a 50 to 85% by weight aqueous solution of hydrofluoric acid as the reaction medium to form 5-fluorouracil, and optionally subjecting the reaction mixture to a heat treatment at a temperature higher than the reaction temperature, to give 5-fluorouracil in a high yield.