Process for the preparation of pyrazoles
    4.
    发明授权
    Process for the preparation of pyrazoles 失效
    制备吡唑的方法

    公开(公告)号:US06407259B1

    公开(公告)日:2002-06-18

    申请号:US09900097

    申请日:2001-07-06

    IPC分类号: C07D23110

    摘要: A “one-pot” process is described herein for the production of pyrazole compounds of general formula (II) comprising the steps of reacting a compound of general formula (III) with an acylating agent in the presence of a base and an optional activating agent followed by the addition of a hydrazine compound in situ.

    摘要翻译: 本文描述了用于制备通式(II)的吡唑化合物的“一锅”方法,包括以下步骤:在碱和任选的活化剂存在下使通式(III)的化合物与酰化剂反应 然后在原位加入肼化合物。