Photoinitiated Additions of Ketones to Bicyclobutanes. The Existence of Diverse Reaction Pathways
A radical chain process has been established for the addition of a series of ketones across the C1-C3 bond of bicyclobutane and its methylated derivatives.For certain ketones, capture of an acyl radical intermediate, generated in a Norrish type I cleaveage of the ketone, competes effectively with the radical chain process.