Novel Application of α-Azido Aldehydes in Multicomponent Reactions: Synthesis of Triazolo-Fused Dihydrooxazinones via a Passerini Reaction–Dipolar Cycloaddition Strategy

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Abstract

α-Azido aldehydes can be employed in Passerini reactions with isocyanides and various propiolic acids to afford the three-component adducts in moderate to good yields. These compounds undergo a straightforward azide-alkyne dipolar cycloaddition to furnish triazolo-fused dihydrooxazinones.

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