Provided are a preparation method for synthesizing a pyrazolecarboxylic acid derivative of the following formula (I), which is suitable for industrial production, and an intermediate as shown by the following formula (II). The method is high in reaction yield in each step, low in waste gas and waste water and low in cost, and requires no special reaction equipment.
                            本发明提供了一种适合工业化生产的合成下式(I)
吡唑羧酸衍
生物的制备方法,以及下式(II)所示的中间体。该方法各步反应收率高,废气、废
水排放量少,成本低,不需要特殊的反应设备。