Visible-light-induced photoxidation-Povarov cascade reaction: synthesis of 2-arylquinoline through alcohol and <i>N</i>-benzylanilines under mild conditions <i>via</i> Ag/g-C<sub>3</sub>N<sub>4</sub> nanometric semiconductor catalyst
Peng Wang, Xiaowen Wang, Xiyu Niu, Li Zhu, Xiaoquan Yao
Abstract
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.
Topics & Concepts
CascadeAlcoholCascade reactionVisible spectrumChemistryReaction conditionsMaterials scienceOrganic chemistryCatalysisOptoelectronicsChromatographyAdvanced Photocatalysis TechniquesSulfur-Based Synthesis TechniquesAdvanced Nanomaterials in Catalysis