An efficient synthesis of α-halo-α-arylseleno ketones has been developed via gem-difunctionalization of α-diazoarylketones with diaryldiselenides and N-halosuccinimides. With this multicomponent approach, a series of α-halo-α-arylseleno ketones were accessed in excellent yields and chemoselectivities under mild conditions. This transformation is proposed to proceed via the key intermediate arylselenenyl halide that generated from diaryldiselenides/N-halosuccinimides, followed by addition with α-diazoarylketones to give the desired gem-difunctionalization products.

中文翻译：

---

α-重氮芳基酮与二芳基二硒化物和 N-卤代琥珀酰亚胺的双官能化：α-卤代-α-芳基硒酮的简便合成。

通过 α-重氮芳基酮与二芳基二硒化物和 N-卤代琥珀酰亚胺的偕双官能化，开发了一种有效的 α-卤代-α-芳基硒酮合成方法。通过这种多组分方法，在温和条件下以优异的产率和化学选择性获得了一系列 α-卤代-α-芳基硒酮。建议通过由二芳基二硒化物/N-卤代琥珀酰亚胺生成的关键中间体芳基硒基卤化物进行这种转化，然后加入 α-重氮芳基酮，得到所需的偕二官能化产物。