A highly efficient copper-catalyzed C−H selenation of 2-substituted benzo[b]furans with diaryl diselenides was realized under simple conditions, affording various 2-substituted 3-selanylbenzo[b]furans in moderate-to-excellent yields. This C−H selenation is atom-economical, with both of the selanyl groups of the diaryl diselenide participating in the reaction.

中文翻译：

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铜催化 2-取代苯并 [b] 呋喃与二芳基二硒化物的 C-H 硒化：合成 2-取代 3-硒基苯并 [b] 呋喃衍生物

在简单的条件下实现了 2-取代的苯并 [ b ] 呋喃与二芳基二硒化物的高效铜催化 C-H硒化，以中等至优异的产率提供了各种 2-取代的 3-硒基苯并 [ b ] 呋喃。这种 CH 硒化是原子经济的，二芳基二硒化物的两个硒基都参与了反应。