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Fatty acids. Part 23 Nuclear magnetic resonance spectra of some octadecadiynoic acids and of some methyl cis, cis- and trans, trans- octadecadienoates

✍ Scribed by F.D. Gunstone; M. Lie Ken Jie; R.T. Wall

Publisher: Elsevier Science
Year: 1969
Tongue: English
Weight: 283 KB
Volume: 3
Category: Article
ISSN: 0009-3084
DOI: 10.1016/0009-3084(69)90039-5

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✦ Synopsis

The NMR spectra of a number of octadecadiynoic acids and of the derived cis, cis-and trans, trans-octadecadienoates have been studied using a 100 MHz instrument. Characteristic spectral features associated with the number of methylene groups between the two unsaturated centres are described. In diunsaturated acids and esters of the general formula CHa.(CH2)p.X.(CH2)n.X.(CH2)r.COOR where X represents the unsaturated centre, those compounds can be differentiated by their NMR spectra in which p 0--2 and/or r = 0 3 and/or n = 0 or 1 or (diynes only) 2 or 3. * Part 22, Lipids, 4 (1969).

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