A metal-free approach for the synthesis of 3-aryl-2-substituted quinolines and 4-arylacridines has been developed via the 1,3-dipolar cycloaddition reactions of arynes with N-oxides. Reactions of various 2-substitued quinoline N-oxides with ortho-(trimethylsilyl)aryltriflates in the presence of KF gave 3-(2-hydroxyaryl)quinoline derivatives in good yields. Acridine N-oxides also reacted with arynes to furnish 4-(2-hydroxyaryl)acridines, albeit in moderate yields.

中文翻译：

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通过苯炔化学无金属合成2-取代的3-（2-羟基芳基）喹啉和4-（2-羟基芳基）ac啶

通过芳烃与N-氧化物的1，3-偶极环加成反应，已经开发出一种无金属的方法来合成3-芳基-2-取代的喹啉和4-芳基吡啶。在KF存在下，各种2-取代的喹啉N-氧化物与邻-（三甲基甲硅烷基）芳基三氟甲磺酸的反应以良好的产率得到了3-（2-羟基芳基）喹啉衍生物。cr啶N-氧化物也与芳烃反应生成4-（2-羟基芳基）ac啶，尽管产率中等。