An IrIII‐catalyzed direct cage B(4)–H bond sulfonamidation with carboxylic acid assistance is reported. This reaction proceeds in the absence of both external oxidants and ligands, and shows high yields and good functional group tolerance. In particular, direct cage B(4)–H bond amination was achieved by using aryl and aliphatic azides as nitrenoid sources for the first time.
据报道,在
羧酸的辅助下,Ir III催化的直接笼状B(4)-H键磺酰胺化反应。该反应在不存在外部氧化剂和
配体的情况下进行,并且显示出高产率和良好的官能团耐受性。特别是,首次通过使用芳基和脂肪族
叠氮化物作为类
固醇源来实现直接笼状B(4)-H键胺化。