A photochemical approach to methyl-substituted 5-oxabicyclo[2.1.0]pent-2-enes (Dewar furans)
Abstract
U.v. irradiation of the N-methylsuccinimide-containing propellanes (12) and (13) yields the cyclopropenyl ketones (19) and (20) logicallly derived by the intermediacy of the Dewar furans (15) and (16).