Solvent-Free Synthesis of 1,3-Diphenyl-5-arylpyrazole Derivatives
作者:Ji-Tai Li、Ying Yin、Xian-Tao Meng
DOI:10.2174/157017809788681383
日期:2009.7.1
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%。
A convenient and efficient protocol for the synthesis of 5-aryl-1,3-diphenylpyrazole catalyzed by hydrochloric acid under ultrasound irradiation
作者:Ji-Tai Li、Ying Yin、Ling Li、Ming-Xuan Sun
DOI:10.1016/j.ultsonch.2009.06.015
日期:2010.1
The synthesis of 5-aryl-1,3-diphenylpyrazole via the reactions of 3-aryl-2,3-epoxy-1-phenyl-1-propanone with phenylhydrazine was carried out in 69-99% yields at room temperature under ultrasound irradiation. This method provides several advantages such as operational simplicity, higher yield and environment friendly. (C) 2009 Elsevier B.V. All rights reserved.
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