2024/05/28 by Evgueni Gorobets, Papatzimas, James W., Dourado, Jorge +6
paper · doi:10.11575/prism/43205
The reactions of bicyclic divinyl ketones display wavelength-dependent changes in product formation. UV irradiation results in the formation of competitive and tricyclic unsaturated ketones that subsequently undergo ring expansion and reaction with a range of nucleophiles. DFT calculations and transient absorption experiments were completed that are consistent with a vinylogous Type II Norrish pathway.