THE PHOTOCHEMICAL REARRANGEMENT OF 3-AZA-1,2,2,4,4-PENTAPHENYLBUT-3-EN-1-ONE. A NOVEL REACTION IN A β,γ-UNSATURATED ENONE.

Article abstract of DOI:10.1016/S0040-4039(00)81612-3

Irradiation of 3-aza-1,2,2,4,4-pentaphenylbut-3-en-1-one in t-butanol gives two photoproducts in good yield.The formation of these products is interpreted in terms of 1,3- or 1,5-benzoyl migration.This is the first report of an acyl migration from a saturated carbon into a substituent phenyl group.