The N.M.R. spectra of the cis octadecenoic (A2-A17), octadecynoic (A2-A 5, AlΒ°), and dodecynoic (A s\_ A ll) acids have been recorded. Those with unsaturation near the centre of the molecule cannot be distinguished from one another but the four isomers with unsaturation closest to the carboxyl group
Fatty acids. Part 50. 13C nuclear magnetic resonance studies of olefinic fatty acids and esters
β Scribed by F.D. Gunstone; M.R. Pollard; C.M. Scrimgeour; H.S. Vedanayagam
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 573 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0009-3084
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β¦ Synopsis
The 13C-NMR spectra of 48 cis alkenoic acids and esters (C8-C20), 18 trans alkenoic acids and esters (C9-C18), and 26 polyenoic acids and esters (C18-C22) are reported and interpreted. The characteristic features of such spectra which permit structural assignments to be made are discussed.
π SIMILAR VOLUMES
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 diun
## Abstract Naturalβabundance ^13^C magnetic resonance spectroscopy was used for determining noninvasively the relative concentration of monoβ and polyunsaturated fatty acids of adipose tissue in two groups of volunteers. The first consisted of subjects who had followed a fatβreduced diet for at le
The chromatographic (GLC and silver ion TLC) properties of thirteen octadecadiynoic esters and the cis,cis-and trans,trans-dienoates derived from them are investigated. The possibility of predicting GEC behaviour (ECL) is discussed. We have already reported 1) the synthesis of several diunsaturated