A new and efficient approach for the N-arylation of 8-aminoquinoline amides with diaryliodonium salts has been developed. This chelation-assisted selective C–N cross-coupling reaction gave the desired N-arylated 8-aminoquinoline in moderate to good yields. In contrast to previous reports, no additional ligands and bases are used in this transformation. In addition, the anion of the diaryliodonium salt plays an important role in the success of the process.

中文翻译：

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通过螯合辅助铜催化 8-氨基喹啉酰胺的无碱 N-芳基化

已开发出一种新的有效方法，用于 8-氨基喹啉酰胺与二芳基碘盐的 N-芳基化。这种螯合辅助的选择性 C-N 交叉偶联反应以中等至良好的产率得到所需的 N-芳基化 8-氨基喹啉。与之前的报道不同，在这种转化中没有使用额外的配体和碱基。此外，二芳基碘盐的阴离子在该过程的成功中起着重要作用。