A cross-coupling reaction using nitronyl nitroxide (NN) as a coupling partner was developed: Refluxing a mixture of [AuI(NN-2-ido)(PPh3)] and aryl iodide (Ar–I) in THF in the presence of 10 mol % [Pd(PPh3)4] produced a cross-coupling product NN-Ar in a high yield. This method allowed the direct introduction of the NN radical onto various poly- and heterocyclic aromatic rings.
开发了一种使用硝酮亚硝基(NN)作为偶联伙伴的交叉偶联反应:将[AuI(NN-2-ido)(PPh3)]和芳基
碘(Ar–I)的混合物在THF中回流,并加入10 mol %的[Pd(PPh3)4],可以高产率地生成交叉偶联产物NN-Ar。该方法允许将NN自由基直接引入各种多环和杂环芳香环。