Pd-Catalyzed Tandem Synthesis of Polysubstituted Pyridines Using β-Enamino Esters and β-Ketodinitriles

, and AgOAc in DMF at 60 °C for 24 h. This transformation proceeds via sequential C-N and C-C bond formation involving nucleophilic addition, intramolecular cyclization, and subsequent aromatization. The protocol exhibits a broad substrate scope, good functional group tolerance, and further demonstrates a postsynthetic modification, highlighting its synthetic utility.