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Abstract
Recent work in this2 and other3 laboratories has shown that the photochemically-induced addition of oxy-carbinyl species to enones provides a simple and effective method of carbon-carbon bond formation. Thus addition of alcohols2C,3,4 and acetals2a to enones (e. g. 1 or 4) affords keto-alcohols (e. g. 2 or 5) and keto-ketals (e. g. 6), the synthetic value of which are enhanced by the fact that the functionalities are conveniently differentiated, thereby facilitating selective manipulation.5