Abstract
A direct and facile palladium-catalyzed C–H bond oxidative carbonylation reaction and oxidative cyclization for the synthesis of polycyclic aromatic hydrocarbons (PAHs) is reported herein. The intramolecular cyclocarbonylation, through C–H activation and C–C, C–O bond formations under mild conditions, proceeds smoothly with good functional group tolerance in high to excellent yields. The intramolecular palladium-catalyzed direct oxidative C–H bond functionalization for the C–O bond formation is also demonstrated, which provides an efficient approach for the construction of various PAHs.
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