The electron impact mass spectra of permethyl ethers of twenty-five highly purified oligosaccharides, containing first, aldohexose units only and second. at least one fructose unit, have been determined. I t is concluded that spectra of these derivatives can yield considerable structural information
Mass spectra of permethyl derivatives of glyco-sphingolipids
β Scribed by R.W. Ledeen; S.K. Kundu; H.C. Price; J.W. Fong
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 828 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0009-3084
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Mass spectra of ten %substituted permethylated trisilanes which include compounds with halo, phenyl and hydrido substituents are reported. Labelling with a C03 group disclosed that a terminal silicon is more favourable as a charge position for the trisilyl cation than the middle atom and that a-and
The electron impact mass spectra (EIMS) of 19 permethylated hexopyranosyl-hexitols, monodeuterated at C'-1, four partially trideuteriomethylated analogues, and some other permethylated hexopyranosides have been investigated. In the formation of the A, ion from the hexopyranosyl-hexitols, only a mino
## Abstract The mass spectra of derivatives of uridine, adenosine, cytidine and guanosine are recorded. Derivatization techniques include permethylation, acetylation, trifluoroacetylation, trimethylsilylation and the synthesis of 2β²,3β²βOβisopropylidenes and 2β²,3β²βOβphenylboronic esters. Sequential