2017
DOI: 10.6023/cjoc201609027
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Synthesis of Quinolinone- and Pyridinone-Fused Oxabicyclo[3.3.1]nonanes

Abstract: An efficient and stereoselective synthesis of quinolinone-and pyridinone-fused 2,8-dioxabicyclo[3.3.1]-nonanes by the reaction of 2-hydroxychalcones with 4-hydroxy-2(1H)-quinolinones/4-hydroxy-2(1H)-pyridinones in refluxing n-PrOH is described. The quinolinone fragment can be converted into the corresponding N-alkylated quinolinones and O-alkylated quinolines by the alkylation reaction. All the unknown compounds are characterized by means of 1 H NMR, 13 C NMR, IR and HRMS. The structures and configurations of … Show more

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