Intramolecular Diels-Alder cycloaddition of N-allyl-N-(2-furylmethyl)amides - First step of a new route towards the synthesis of a densely functionalized pyrrolizidine ring

F Ghelfi, A F Parsons, D Tommasini, A Mucci

Research output: Contribution to journalArticlepeer-review

Abstract

The intramolecular Diels-Alder reaction of N-allyl-N-(2-furylmethyl)amides to exo-N-acyl-3-aza-10-oxatricyclo[5.2.1.0(1)-,5]dec-8-enes is described. The cycloaddition is controlled not only by the size of the amide appendage, but, also by electronegativity of the amide. An example of a new approach towards the synthesis of a highly functionalized pyrrolizidine ring, which links this Diels-Alder cycloaddition to an halogen atom transfer radical cyclization, is reported.

Original languageEnglish
Pages (from-to)1845-1852
Number of pages8
JournalEuropean Journal of Organic Chemistry
Issue number10
Publication statusPublished - May 2001

Keywords

  • amides
  • Diels-Alder reactions
  • polycyclic aliphatic compounds
  • pyrrolizidines
  • radicals
  • radical reactions
  • TRICYCLIC NITROGEN-HETEROCYCLES
  • RADICAL CYCLIZATION
  • GAMMA-LACTAMS
  • FURAN DIENE
  • ORGANOMETALLIC REAGENTS
  • CONSTRUCTION
  • IMDAF
  • REARRANGEMENT
  • SUBSTITUENTS
  • DERIVATIVES

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