Abstract
AbstractThe isomerized product obtained by heating linolenic acid with potassium hydroxide in ethylene glycol at 165C for 30 min was separated into urea‐adduct‐forming (AF) and nonurea‐adductforming (NAF) materials. Both were converted to methyl esters and fractionated by countercurret distribution (CCD) between hexane and 0.2N silver nitrate in 90% methanol. Some of the CCD fractions were further fractionated by low‐temperature crystallization from acetone.The AF material consisted largely of trienoate containing triene conjugation and of trienoate containing diene conjugation. The NAF material was composed of the same two components and cyclic esters.
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