method for the construction of heteroaryl-fused phenazines was developed via PIFA-BF3·Et2O-mediated oxidative coupling of di-heteroarylated quinoxalines for the first time. Synthesis of mono- and di-heteroarylation of quinoxaline was performed effectively using only LiTMP reagent under transition metal-free conditions and without the use of halogen-containing starting compounds. In addition, nonsymmetrical
                                    首次通过
PIFA-BF 3 ·Et 2 O介导的二杂芳基化
喹喔啉的氧化偶联,开发了一种构建杂芳基稠合
吩嗪的简明方法。仅在无过渡
金属的条件下使用Li
TMP试剂有效地进行了
喹喔啉单-和双-杂芳基化反应的合成,而没有使用含卤素的起始化合物。此外,以相同的方式通过单杂芳基化
喹喔啉的再杂芳基化反应合成了不对称的二杂芳基化
喹喔啉。杂芳基化后形成的饱和化合物的氧化很容易用
碘完成。检查了某些化合物的紫外可见吸收和荧光特征。