title: Structure and intraglyceride distribution of coriolic acid.
abstract: Coriolic [(R)-13-hydroxy-cis-9,trans-11-octadecadienoic] acid (III, R=Z=H) was isolated as the methyl ester from twoCoriaria seed oils in 66 and 68% yields. The double bonds and hydroxyl group were located by periodate-permanganate oxidation before, and chromic acid oxidation after, hydrogenation of the double bonds. Alternatively the positions of the functional groups were indicated by a convenient micro-ozonolysis-gas-liquid chromatographic procedure. Determination of products from partial hydrolysis of theCoriaria oils with pancreatic lipase (EC 3.1.1.3) revealed a preference of the corioloyl group for the 1,3-positions in triglyceride molecules. The possible significance of coriolic acid as an intermediate in the biogenetic conversion of linoleic acid to conjugated trienoic acids is discussed.
authors.affiliation: Northern Regional Research Laboratory, 61604, Illinois, Peoria.
authors.forename: W H
authors.initials: WH
authors.lastname: Tallent
authors.forename: J
authors.initials: J
authors.lastname: Harris
authors.forename: G F
authors.initials: GF
authors.lastname: Spencer
authors.forename: I A
authors.initials: IA
authors.lastname: Wolff