PHOTOSENSITIZED OXIDATION OF 1-PHENYLCYCLOBUTENE. THE ROLE OF REACTIVE OXYGEN SPECIES OTHER THAN SINGLET OXYGEN
On dye-sensitized photooxydation of 1-phenylcyclobutene the formation of 3-benzoylpropanal and 2-phenyl-3-hydroperoxycyclobutene was ascribed to oxidation with singlet oxygen, whereas a reactive oxygen species other than singlet oxygen was responsible for the formation of 1-(2-hydroxyphenyl)cyclopropanecarbaldehyde.Some attempts to explore the latter oxygen species were made.