**Electron Impact Mass Spectrometry of the 3‐Desoxy‐1,2: 5,6‐di‐__O__‐isopropylidene‐3‐methylidene‐δ‐D‐hexofuranose and Some C(3′)‐Substituted Analogues** The mass spectra of the 3‐desoxy‐1,2:5, 6‐di‐__O__‐isopropylidene‐3‐methylidene‐ α‐D‐__ribo__‐hexofuranose and of some C(3′)‐mono‐ and ‐disubsti
Etude par spectrométrie de masse des O-isopropylidène-1,2-thréo- et -érythro-furannoses et des quatre désoxy-5-O-isopropylidène-1,2-pentofurannoses
✍ Scribed by Armand Buchs; Alain Glangetas; Jean M. J. Tronchet
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- German
- Weight
- 435 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
The mass spectra of the O‐isopropylidene derivatives of threo‐ and erythro‐furanose and those of the four C(4) methylated stereoisomers have been studied. Fragmentation modes based upon deuterium labelling, metastable peaks and high‐resolution measurements are proposed. Each stereoisomer can be characterized by its low‐resolution mass spectrum.
📜 SIMILAR VOLUMES
La reference [2] constitue la deuxikmc communication de cette sCrie.
**Cyclic and acyclic phosphate esters of some 1,2‐__O__‐isopropylidene‐α‐D‐pentofuranoses** When treated with monophenyl phosphorodichloridate, 1,2‐__O__‐isopropylidene‐α‐D‐xylofuranose gave the two possible, isolable isomers of the corresponding 3,5‐cylic phenylphosphate. Upon phosphorylation of t
## Abstract Treatment of 3‐deoxy‐1, 2:5, 6‐di‐O‐isopropylidène‐3C‐méthylene‐α‐D‐ribo‐hexofuranose with aromatic nitrile oxides led to __spiro__‐Δ~2~‐isoxazolines, whereas a Δ~1~‐pyrazoline was obtained by reacting the same C‐methylenic sugar with diazomethane. Properties of these compounds, a new c