All the cis octadecenoic esters have been converted to cyclopropane compounds by reaction with zinc-copper couple and di-iodomethane. Their gas-liquid chromatographic behaviour on four liquid phases is described. Six isomers (2,3-; 3,4-; 4,5-; 15,16-; 16,17 -; and 17,18 -) have distinctive nuclear m
Fatty acids, part 40 the synthesis and chromatographic and spectroscopic properties of the disubstituted cyclopropanes derived from all the methyl trans-octadecenoates
β Scribed by F.D. Gunstone; B.S. Perera
- Book ID
- 107736827
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 245 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0009-3084
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π SIMILAR VOLUMES
The chromatographic properties of the cis and trans methyl octadecenoates and of some C12 and Cls acetylenic esters on thin layers of silica impregnated with silver nitrate and on some GLC systems are reported. The possibility of identification and separation of these isomers is discussed.
Eight isomeric methyl cis, cis-octadecadienoates (5,12; 6,12; 7,12; 6,11 ; 8,12; 6,10; 9,12; and 6,9) have been converted to dicyclopropane esters. The GLC behaviour, NMR spectra, and mass spectra of the dimethyleneoctadecanoates are discussed.
Aff the dImethylene-inferrupied Fethyl octadecadiynoates have been synthesised and the gas-liquid chromatographic behaviour of these isomers was studied on polar [Carbowax 2OM, FFAP, DEGA, DEGS and War IOC (rcceniIy renamed as Apolw tOc)f, semi-poIar (XE-60) and non-p&x (SE-IO, OV-101 and Apiezon L)