innate C–H functionalization. Iron(II) acetylacetonate along with oxidant (K2S2O8) and phase-transfer catalyst (TBAB) under open flask conditions efficiently catalyzed the cross-coupling of pyrazine with arylboronic acids and gave monoarylated products in good to excellent yields. Optimized conditions also worked for other heterocylces such as quinoxalines, pyridines, quinoline, and isoquinoline as
在这里,我们报告一个
铁催化的交叉-通过先天C-H官能缺电子杂环的偶联反应和醌与有机
硼物种。
铁(II)与
氧化剂(K沿着
乙酰丙酮2小号2 ö 8)和相转移
催化剂(T
BAB)打开烧瓶的条件下有效地催化交叉-与芳基
硼酸吡嗪耦合又给monoarylated产品以良好至优异的产量。优化的条件也适用于其他杂环,例如
喹喔啉,
吡啶,
喹啉和
异喹啉以及醌。此外,作为第一个实例,我们证明了其在合成抗癌海洋
吡嗪生物碱结晶苦菜碱A中的应用。