Photochemical [2 + 2] cycloaddition reactions of 6-alkenyl-3-phenylcyclohex-2-en-1-ones: using biradical conformation control to account for exceptions to the “rule of five”

Stephen A. Bradley, Brian J. Bresnan, Sylvia M. Draper, Niall W. A. Geraghty, Mark Jeffares, Thomas McCabe, T. Brian H. McMurry, John E. O'Brien
  • Organic & Biomolecular Chemistry, January 2011, Royal Society of Chemistry
  • DOI: 10.1039/c0ob01131b