Nature Communications (Jan 2022)

A general synthesis of azetidines by copper-catalysed photoinduced anti-Baldwin radical cyclization of ynamides

  • Clément Jacob,
  • Hajar Baguia,
  • Amaury Dubart,
  • Samuel Oger,
  • Pierre Thilmany,
  • Jérôme Beaudelot,
  • Christopher Deldaele,
  • Stefano Peruško,
  • Yohann Landrain,
  • Bastien Michelet,
  • Samuel Neale,
  • Eugénie Romero,
  • Cécile Moucheron,
  • Veronique Van Speybroeck,
  • Cédric Theunissen,
  • Gwilherm Evano

DOI
https://doi.org/10.1038/s41467-022-28098-x
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 8

Abstract

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The construction of four-membered rings via a 4-exo-dig cyclization was originally theorized to be unfavourable and only recently shown in sparse examples. Here the authors present a photochemical, radical 4-exo-dig cyclization of ynamides to form azetidines, promoted by copper photoredox catalysis.