Co(III)-Catalyzed Enaminone-Directed C-H Amidation for Quinolone Synthesis

We report herein the development of a Co (III)-catalyzed enaminone-directed C-H amidation method for synthetic access to quinolones, an important heterocyclic scaffold for diverse pharmaceutically active structures. The C-H coupling with,dioxazolones and subsequent deacylation of an installed amide group allow consecutive C-N coupling generation of quinolones with wide-ranging compatible substituent patterns.