• Title/Summary/Keyword: spiroether

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Synthesis of Spiroannulated Dihydrofuran Compounds Utilizing Cerium(IV) Ammonium Nitrate (Cerium(IV) Ammonium Nitrate를 이용한 Spiroannulated 다이하이드로퓨란 화합물의 합성)

  • Kim, Byung-SO
    • Journal of the Korean Society of Industry Convergence
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    • v.5 no.4
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    • pp.385-390
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    • 2002

  • An efficient synthesis of spiroannulated dihydrofurans is achieved from 1,3-dicarbonyl compounds and exocyclic alkenes in the presence of cerium ammonium nitrate(IV) in moderate yields. In the case of entries 3-9, as a single product was seen. Especially, reaction of 15 with methylenecyclohexane afforded the two regioisomeric cyclo adducts 21 and 22. The structures of these adducts were confirmed by IR and NMR-Spectra.

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