Spirofused and Annulated 1,2,4-Trioxepane-, 1,2,4-Trioxocane-, and 1,2,4-Trioxonane-Cyclohexadienones: Cyclic Peroxides with Unusual Ring Conformation Dynamics.

C3- or C4-hydroxyalkylated phenols are highly reactive towards peroxidation with oxone, which results in the formation of tertiary C3 hydroperoxides. This reaction can also be performed with photochemically generated singlet oxygen. However, other characteristic singlet oxygen reactions do not proceed with caroate.