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Synthesis and mass spectrometry of benzoxazoline, dimethyloxazoline and 4‐phenyloxazoline derivatives of polyunsaturated fatty acids
Author(s) -
Kangani Cyrous O.,
Kelley David E.,
Evans Rhobert W.
Publication year - 2007
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.3071
Subject(s) - chemistry , polyunsaturated fatty acid , mass spectrometry , chromatography , organic chemistry , fatty acid
Cyclic nitrogen moieties have proved to be of great value for the mass spectrometric location of double bonds in polyunsaturated fatty acids. However, their synthesis has traditionally required long reaction times and/or high temperatures. Recently, we introduced a one‐pot, high‐yield, mild and efficient method for the synthesis of various fatty acid amide derivatives. We have now extended this procedure to include the synthesis of benzoxazoline, dimethyloxazoline and 4‐phenyloxazoline analogs of a series of fatty acids containing 18 to 22 carbon atoms and 0 to 6 double bonds. A comparison of the mass spectral properties of the three derivatives of these saturated and unsaturated fatty acids is described. Copyright © 2007 John Wiley & Sons, Ltd.