Practical Route to 2-Quinolinones via a Pd-Catalyzed C–H Bond Activation/C–C Bond Formation/Cyclization Cascade Reaction

Quinolinone derivatives were constructed via a Pd-catalyzed C-H bond activation/C-C bond formation/cyclization cascade process with simple anilines as the substrates. This finding provides a practical procedure for the synthesis of quinolinone-containing alkaloids and drug molecules. The utility of this method was demonstrated by a formal synthesis of Tipifarnib.