Abstract
A rhodium(III)-catalyzed Satoh-Miura type oxidative annulation of N-aryl 2-pyridone derivatives is described using internal alkyne as a coupling partner. A weakly coordinating carbonyl group of the 2-pyridone ring is utilized for this transformation. The reaction proceeds with a broad scope and wide functional group tolerance. The solvent plays an important role in the developed method to furnish a different class of annulated product. A preliminary investigation was carried out to explore the photophysical properties of the obtained polyarylated N-naphthyl 2-pyridones.
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