acids in the presence of Ac2O at reflux temperature. The products were isolated by simple filtration in excellent yields and were characterized by IR, 1H‐NMR, and HRMS. The molecular structure was confirmed by the X‐ray crystal analysis of one compound that was prone to crystallization.
通过1-(2-氧代-2-苯基乙基)-3的内酯化反应合成了一系列2,6
-二苯基-4 H-
吡唑并[5,1- c ] [1,4]恶嗪-4-酮。在回流温度下,在Ac 2 O存在下,-1苯基1 H
吡唑5
羧酸。通过简单过滤将产物分离,收率很高,并通过IR,1 H-NMR和HRMS进行表征。通过一种易于结晶的化合物的X射线晶体分析证实了其分子结构。