2-羟基-3-苯偶氮吡唑[5,1-c]苯并-1,2,4-三嗪衍生物的合成

Synthesis of 2-hydroxy-3-arylazopyrazolo[5,1-c]benzo-1,2,4-triazines

合成了8种1苯基3羟基5氨基4苯偶氮吡唑及其关环产物2羟基3苯偶氮吡唑[5,1c]苯并1,2,4三嗪衍生物,经元素分析、IR和质谱分析确定了其结构。

By coupling 1 phenyl 3 hydroxy 5 aminopyrazole with diazotized aniline or substitued anilines in the presence of pyridine,a series of arylhydrazones were prepared in high yield.These compounds were cyclized by diazotization forming 2 hydroxy 3 arylazopyrazolo [5,1 c]benzo 1,2,4 triazines.