A hypervalent iodine-mediated spirocyclization of 2-(4-hydroxybenzamido)acrylates – unexpected formation of δ-spirolactones

Christian Hempel, Nicole M. Weckenmann, C. Maichle-Moessmer, Boris J. Nachtsheim
  • Organic & Biomolecular Chemistry, January 2012, Royal Society of Chemistry
  • DOI: 10.1039/c2ob26815a