초록 |
Numerous biologically active natural products and materials have a C-N bond, which is one of the most important bonds in organic and medicinal chemistry. Carbazoles and its derivatives are important nitrogen-containing heterocyclic compounds found in the field of organic, pharmaceutical and electronic materials due to their bioactivities and optoelectronic properties. In this study, we demonstrated the intramolecular C-H amination of N-benzenesulfonyl amidobiphenyl using plasmonic Au nanoparticles and Au@Pd core-shell nanoparticles under visible light and mild reaction conditions. Based on our experimental results, we found the bond cleavage of N-S bond of N-benzensulfonyl amidobiphenyl occurred and the intramolecular C-N bond formed simultaneously. Consequently, we realized that the 9H-Carbazole was synthesized by photocatalytic reaction in the presence of Au nanoparticle and visible light. |