Facile Synthesis of Coumarin- and Quinolone-Annulated Benzazoninone Derivatives by an Intramolecular Heck Reaction Strategy via 9-exo-trig Cyclization

[摘要]：A synthetic strategy based on the application of the aromatic aza-Claisen rearrangement followed by an intramolecular Heck reaction sequence as the key step has been developed for the regiocontrolled synthesis of hitherto unreported coumarin- and quinolone-annulated benzazoninone derivatives in 48-69% yield.

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