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Synlett 1995; 1995(7): 742-744
DOI: 10.1055/s-1995-5053
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New Easy Access to Polycyclic Oxygen Containing Heterocycles

Brigitte Jamart-Grégoire, Sophie Mercier-Girardot, Sandra Ianelli, Mario Nardelli, Paul Caubère*
  • *Laboratoire de Chimie Organique I, URA CNRS 457, INCM FU CNRS 0008, Faculté des Sciences, Université H. Poincaré, Nancy I, BP 239, F-54506 VANDOEUVRE-LES-NANCY, France
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Publication Date:
31 December 2000 (online)

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Polycyclic tetrahydrofuran or hexahydro-oxepin derivatives and tetrahydrofuryl tetrahydropyrans were conveniently obtained from dihydropyranylcyclobutanols and dihydropyranylketones respectively. These latter starting materials were easily prepared by elimination-addition from 5-bromo-3,4-dihydropyran.

dihydropyranyl - methylene cyclobutanols - tetrahydrofurans - hexahydro-oxepins - tetrahydropyranyl tetrahydrofurans - ring enlargement