Iridium(III)-Catalyzed Selective and Mild C-H Amidation of Cyclic <i>N</i>
-Sulfonyl Ketimines with Organic Azides
作者:Manikantha Maraswami、Gang Chen、Teck-Peng Loh
DOI:10.1002/adsc.201700785
日期:2018.2.1
A general protocol for iridium catalyzed direct C−H amidation of cyclic N-sulfonyl ketimines using sulfonyl, acyl and aryl azides as nitrogen source is reported herein. The reaction takes place at room temperature with acyl and aryl azides, while an elevated temperature needed with sulfonyl azides to furnish aminated sultams in excellent yields with complete chemo and regioselectivity, thus providing
本文报道了使用磺酰基,酰基和芳基叠氮化物作为氮源的铱催化环状N-磺酰基酮亚胺直接CH酰胺化的一般方案。该反应在室温下与酰基和芳基叠氮化物一起进行,而磺酰叠氮化物需要升高的温度以优异的收率提供胺化的磺胺类化合物,具有完全的化学和区域选择性,因此为氨基磺胺类化合物的合成提供了稳健且对环境有益的方法。