The synthesis of 1,3-diphenyl-5-arylpyrazoles via the reactions of 2,3-epoxy-1-phenyl-3-aryl-1-propanones with phenylhydrazine was carried out in 48-84% yields at 230 °C under solvent-free condition within 1.5 h. This method provides several advantages such as operational simplicity, higher yield and solvent-free.
该方法通过 2,3-环氧-1-苯基-3-芳基-1-
丙酮与苯
肼的反应合成 1,3
-二苯基-5-芳基
吡唑,在 230 °C 无溶剂条件下 1.5 小时内产率达到 48-84%。