Synthetic Photochemistry. XXI. The Sensitized Photooxygenation of Calarene. A Facile Hock Cleavage of an Allylhydroperoxide and Structure Revision for Aristolenols
An allylic hydroperoxide formed by the sensitized photooxidation of calarene causes a Hock cleavage.A revised stereochemistry of an aristolenol is given on the basis of the direction of oxygenation.