CHIMIA (Oct 1987)

Photochemical Cycloadditions to 5,6-Dihydro-4-pyridones

  • Philippe Guerry,
  • Reinhard Neier

DOI
https://doi.org/10.2533/chimia.1987.341
Journal volume & issue
Vol. 41, no. 10

Abstract

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5,6-Dihydro-4-pyridones (3a-3c) undergo photochemical [2 + 2]-cycloaddition with olefins activated by an electron withdrawing group. Alkyl substituted double bonds could only be brought to react in the intramolecular cases 3d and 3e.