Synthesis of New Fluorinated Tebufenpyrad Analogs with Acaricidal Activity Through Regioselective Pyrazole Formation
作者:Santos Fustero、Raquel Román、Juan F. Sanz-Cervera、Antonio Simón-Fuentes、Jorge Bueno、Salvador Villanova
DOI:10.1021/jo801729p
日期:2008.11.7
3-diketone with methylhydrazine. We have now applied this synthetic method to the preparation of new fluorinated pyrazoles, which have then been used as synthetic intermediates in the preparation of fluorinated analogs of Tebufenpyrad, a commercial acaricide. These compounds display a strong acaricidal activity that is either comparable to or better than that of the commercial compound.
在先前的研究中,我们的研究小组表明,使用氟化醇(例如三氟乙醇(TFE)和六氟异丙醇(HFIP))作为溶剂可显着提高由1,3-二酮与甲基肼形成吡唑的区域选择性。现在,我们已将此合成方法应用于制备新的氟化吡唑,然后将其用作合成中间体,用于制备商业杀螨剂Tebufenpyrad的氟化类似物。这些化合物具有很强的杀螨活性,可与市售化合物相比或更高。