available simple K2CO3/I2 reagent combination. The iodinated azole adduct, produced via the in situ generation of N-heterocyclic carbene, is the key intermediate for C2−H oxidation, imination, and amination of azoles. Significantly, these reactions proceed under mild conditions with high to excellent yields, are scalable to large quantity and exhibit a broad substrate scope. Interestingly, this direct
通过使用可商购的简单K 2 CO 3 / I 2试剂组合,可以实现多种唑类的直接C2-H氧化和
亚胺化。
碘化唑加成物,产生通过所述原位生成N-杂环碳烯的,为C2-H氧化,
亚胺化,和唑类的胺化的关键中间体。重要的是,这些反应在温和的条件下以高至优异的产率进行,可扩展至大量并显示出广泛的底物范围。有趣的是,这种直接的C2-H胺化方法使我们能够获得各种具有药理活性的N 6-烷基或N 6芳基取代的
苯并咪唑并
喹唑啉酮骨架通过分子内CH串联进行一锅反应。