Proton magnetic resonance identification of nonconjugated cis-unsaturated fatty acids and esters
β Scribed by Frost, David J.; Barzilay, John.
- Book ID
- 126101239
- Publisher
- American Chemical Society
- Year
- 1971
- Tongue
- English
- Weight
- 240 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0003-2700
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π SIMILAR VOLUMES
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.
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