Pyrone derivatives and method for producing same
    4.
    发明授权
    Pyrone derivatives and method for producing same 失效
    吡喃衍生物及其制备方法

    公开(公告)号:US06716999B2

    公开(公告)日:2004-04-06

    申请号:US10148190

    申请日:2002-08-12

    IPC分类号: C07D30932

    摘要: A method for producing pyrone derivatives of the general formula (I), wherein X1 is halomethyl, whereby an acetoacetic acid derivative of the general formula (II), wherein X1 has the aforementioned meaning and X2 is chlorine or bromine, is treated with a Lewis acid and is subsequently converted into the desired product by means of water.

    摘要翻译: 一种制备通式(I)的吡喃酮衍生物的方法,其中X 1为卤代甲基,由此得到通式(II)的乙酰乙酸衍生物,其中X 1具有上述含义,X 2为 氯或溴,用路易斯酸处理,随后通过水转化成所需产物。