Irradiation of β-aminopropiophenones 1 leads to the formation of 2-aminocyclopropanols 2 which can undergo oxidative ringopening to give enaminones 3. The regioselectivity of cyclopropanol formation of the α-benzyl substituted 1 is determined by the preferred charge transfer interaction between the photoexcited benzoyl chromophore and the amino group. The photocyclizations of the α- or β-substituted