The direct arylation of N‐substituted o‐bromobenzanilides and benzenesulfonamides via CH bond functionalization has been developed using very low catalyst loadings. This novel cost‐effective and more sustainable method relies on a PCN‐type palladium pincer complex as a highly active palladium source, providing a general and efficientaccess to phenanthridinones, biaryl sultams and related heterocyclic
The cycliccompounds have wide applications in the design and synthesis of drugs and materials; thus, their efficient construction attracts much attention from the synthetic community. In this letter, we report an efficient method for preparing cycliccompounds starting from the readily available carboxylic acids. This reaction takes place through intramolecular decarbonylative sp2 C–H arylation, enabling