Abstract: The photochemical behavior of a series of alkenes and cycloalkenes on direct irradiation in hydroxylic media has been studied and compared with the sensitized behavior of these same olefins under similar conditions. On irradiation in methanol 1- methylcyclohexene,-heptene, and-octene (lb-d) underwent photoprotonation, in complete analogy with their behavior on sensitized irradiation. In the case of 1-methylcyclohexene ( ...
