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4H-Quinolizin-4-ones are a unique class of heterocycle with valuable physicochemical properties and which are emerging as key pharmacophores for a range of biological targets. A tandem Horner-Wadsworth-Emmons olefination/cyclisation method has been developed to allow facile access to substituted 4H-quinolizin-4-ones encoded with a range of functional groups.

Synthesis of functionalised 4H-quinolizin-4-ones via tandem Horner–Wadsworth–Emmons olefination/cyclisation