With a Ag/g-C3N4 nanometric semiconductor as the photocatalyst, 2-arylquinolines were synthesized through a photoxidation-Povarov cascade reaction of N-benzylanilines and alcohols under visible light irradiation. Under the blue light of a 3 W LED, good yields were achieved for various substrates in oxygen at room temperature. This methodology provides a green and mild alternative for the formation of 2-arylquinoline derivatives. Remarkably, the Ag/g-C3N4 nanocomposite can be conveniently recovered and reused several times with satisfying yields.

中文翻译：

---

可见光诱导的光氧化-Povarov级联反应：在温和条件下，通过Ag / g-C3N4纳米半导体催化剂，通过醇和N-苄基苯胺合成2-芳基喹啉。

以Ag / g-C3N4纳米半导体为光催化剂，在可见光照射下，通过N-苄基苯胺和醇的光氧化-Povarov级联反应合成了2-芳基喹啉。在3 W LED的蓝光下，室温下在氧气中各种衬底的产率都很高。该方法为2-芳基喹啉衍生物的形成提供了绿色和温和的替代方法。值得注意的是，Ag / g-C3N4纳米复合材料可以方便地回收并以令人满意的产率重复使用数次。