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The domino synthesis of 2‐phenyl‐4H‐chromen‐4‐ones and quinolin‐4‐ones through acetylation of 2‐hydroxy‐/2‐aminobenzaldehydes with α‐haloketones followed by intramolecular oxa‐/azaheterocyclisation is reported. This method represents a new extension of the Allan–Robinson and Friedländer reactions, and uses N‐heterocyclic‐carbene catalysis to construct the target molecules in good to excellent yields:...
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