Simple and Efficient Method for Synthesis of 3-Cyano-6,7-diarylpyrazolo[1,5-<i>a</i>]pyrimidine from Isoflavones
作者:Yu-Qing Ma、Zun-Ting Zhang、Qing He、Dong Xue、Peng-Fei Zhang
DOI:10.1080/00397911.2010.521902
日期:2012.4.1
Abstract A series of 3-cyano-6,7-diarylpyrazolo[1,5-a]pyrimidines have been synthesized directly from the 5-amino-4-cyano-1H-pyrazole and isoflavones. The target compound was obtained by a condensation reaction. Structures of compounds were demonstrated by Fourier transform infrared, NMR, and elemental analysis. The advantages of this synthetic route are simple operation, mild reaction conditions,
摘要 由 5-氨基-4-氰基-1H-吡唑和异黄酮直接合成了一系列 3-氰基-6,7-二芳基吡唑并[1,5-a]嘧啶。通过缩合反应获得目标化合物。通过傅里叶变换红外、核磁共振和元素分析证明了化合物的结构。该合成路线的优点是操作简单、反应条件温和、收率好。图形概要