Synthesis and mass spectral studies of 1-[5-chloro-1-substituted-2(1<i>H</i>)-pyrazin-2-on-3-yl]-5-aryl-3-methylpyrazoles
作者:B. K. Bhattacharya、F. R. Eirich
DOI:10.1002/jhet.5570220154
日期:1985.1
]-5-aryl-3-methylpyrazoles V have been synthesized by condensation of 5-chloro-1-substituted-3-hydrazino-2(1H)-pyrazin-2-ones III and 1-aryl-1,3-butanediones IV in dry 1,4-dioxane. The general mass spectral fragmentation mode of these compounds has been studied.
通过5-氯-1-缩合反应合成了十六种新的1- [5-氯-1-取代-2(1 H)-吡嗪-2-on-3-基] -5-芳基-3-甲基吡唑V在干燥的1,4-二恶烷中取代了3-肼基-2(1 H)-吡嗪-2-酮III和1-芳基-1,3-丁二酮IV。已经研究了这些化合物的一般质谱碎裂模式。