Rhodium‐Catalyzed Directed C–H Heteroarylation of 2‐Pyridones Using Cyclic Iodonium Ylides

2‐Pyridone is a crucial building block in bioactive natural products and serves as a vital intermediate for the synthesis of bioactive nitrogen‐containing heterocycles. Recent advancements in transition metal‐catalyzed C–H functionalization have enabled the direct modification of 2‐pyridones, circumventing the need for pre‐functionalization. In this study, we report a Rh(III)‐catalyzed, C6‐selective C–H heteroarylation of 2‐pyridones using cyclic iodonium ylides as carbene precursors. The versatility and broad applicability of this method are demonstrated through the efficient synthesis of diverse compounds featuring both 2‐pyridone‐pyridine and cyclic 1,3‐dicarbonyl derivatives.