We report a Pd-catalyzed arylation of 1,4-naphthoquinones with aryl iodides. This reaction shows excellent functional group tolerance and high regioselectivity when using nonsymmetric 1,4-naphthoquinone. Furthermore, the resulting 2-aryl-1,4-naphthoquinone could be successfully converted into benzo[b]phenanthridine-7,12-dione through treatment with aqueous ammonia, followed by oxidative cyclization using MnO₂.

中文翻译：

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钯催化的1，4-萘醌与芳基碘化物的芳基化及其在苯并[ b ]菲啶骨架上的合成应用

我们报告钯与芳基碘化物催化的芳基化的芳基化。当使用非对称的1，4-萘醌时，该反应显示出优异的官能团耐受性和高的区域选择性。此外，通过用氨水处理，然后使用MnO ₂进行氧化环化，可以将所得的2-芳基-1,4-萘醌成功地转化为苯并[ b ]菲啶-7,12-二酮。