Fig. 2. Conjugated and bis-allylic hydroperoxides.
(A) 9-HPODE and 13-HPODE are the well-known conjugated hydroperoxides formed in the autoxidation of linoleic acid. Formation of 11-HPODE was presumed based on the mesomeric structures of the intermediate pentadienyl radical (B) but remained an elusive product until its first isolation in 2000 [25].
