Rapid Communications in Mass Spectrometry · 1997 · 18 citations · 0 references
Natural SciencesBiochemistryChemistryAnalytical ChemistryChromatographic AnalysisMass Spectrometric AnalysisChromatographyGas ChromatographyInstrumental AnalysisMass SpectrometryDouble Bond ConfigurationDouble Bond Position AnalysisGas Chromatography-mass Spectrometry
The determination of the positions of double bonds after dimethyl disulfide (DMDS) addition is described for triunsaturated compounds (alkatrienes and an ester). Different DMDS derivatives were studied according to the numbers, n1 and n2, of methylene groups separating the double bonds. When n1 and n2 are smaller than four, a bicyclic thioether is formed and a predictable fragmentation pathway is observed in each case after electron ionization, allowing the determination of the positions of the three double bonds and the molecular structure of the compounds. © 1997 John Wiley & Sons, Ltd.