A method for the synthesis of N-aryl-C-nitroazoles is presented. A coupling reaction between variously substituted arylboronic acids and 3(5)-nitro-1H-pyrazole catalyzed by copper salt has been carried out in methanol in the presence of sodium hydroxide to afford the desired N-aryl-C-nitroazoles in good yields. This synthetic route has also been successfully applied to obtain N-phenyl derivatives of 4-nitropyrazole, 2-nitroimidazole, 4(5)-nitroimidazole and 3-nitro-1,2,4-triazole.
提出了一种合成N-芳基-C-硝基唑的方法。在
甲醇中,在
氢氧化钠存在下,通过
铜盐催化苯
硼酸的偶联反应和3(5)-硝基-1H-
吡唑,得到了期望的N-芳基-C-硝基唑产率良好。这种合成途径还成功地用于获得
4-硝基吡唑、
2-硝基咪唑、4(5)-硝基
咪唑和
3-硝基-1,2,4-三唑的N-苯基衍
生物。