scholarly journals Structure determination of methyl esters of unsaturated fatty acids by gas-liquid chromatography of the aldehydes formed by triphenyl phosphine reduction of the ozonides

1962 ◽  
Vol 3 (4) ◽  
pp. 476-478
Author(s):  
Robert A. Stein ◽  
Nicholas Nicolaides
Keyword(s):  
Fatty Acids ◽  
Liquid Chromatography ◽  
Structure Determination ◽  
Unsaturated Fatty Acids ◽  
Methyl Esters ◽  
Gas Liquid Chromatography ◽  
Triphenyl Phosphine

Ozonolysis of unsaturated fatty acids. II. Esterification of the total products from the oxidative decomposition of ozonides with 2,2-dimethoxypropane

1967 ◽  
Vol 45 (13) ◽  
pp. 1405-1410 ◽  
Author(s):  
John D. Castell ◽  
R. G. Ackman
Keyword(s):  
Fatty Acids ◽  
Liquid Chromatography ◽  
Unsaturated Fatty Acids ◽  
Performic Acid ◽  
Acid Oxidation ◽  
Gas Liquid Chromatography ◽  
Positional Isomers ◽  
Flame Ionization ◽  
Hydrogen Flame

The total acidic products from the performic acid oxidation of the ozonide of methyl oleate formed in methanol may be esterified directly in a few hours with 2,2-dimethoxypropane. The ester concentrations are adequate for the determination of the positional isomers of monoethylenic fatty acids directly from the reaction mixture, using a hydrogen flame ionization gas–liquid chromatography detector. Dimethyl sulfoxide was not required to prevent the breakdown of 2,2-dimethoxypropane under the conditions employed.

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