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Location of double bonds in tetradecenyl acetates by electron impact mass spectrometry
Author(s) -
Horiike Michio,
Hirano Chisato
Publication year - 1987
Publication title -
biomedical and environmental mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0887-6134
DOI - 10.1002/bms.1200140408
Subject(s) - double bond , chemistry , mass spectrometry , mass spectrum , electron ionization , ion , spectral line , stereochemistry , analytical chemistry (journal) , crystallography , organic chemistry , chromatography , ionization , physics , astronomy
Acetates of 12 positionally isomeric tetradecenols (Δ 2 –Δ 13 ) have been prepared and their mass spectra measured without any prior chemical modification. Comparison of spectra of all the isomers has shown the variation in intensities of some predominant fragments with the position of the double bond on the 14 carbons chain. The mass spectra were interpreted in terms of the relative intensity ratio of the fragment ion peaks to locate the double bond positions. A procedure for elucidation of the positional isomerism of tetradecenyl acetates is given.