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Identification of C-glycopyranosides and C-glycofuranosides by 13C NMR and 1H NMR. Complete assignment of their spectral data using carbon–proton chemical shift correlation spectroscopy

✍ Scribed by Brian Wright; Leslie R. Hughes; Sheila S. Qureshi; Alan H. Davidson

Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
471 KB
Volume
26
Category
Article
ISSN
0749-1581

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✦ Synopsis

Box 13, Cardiff CF1 3XF, UK C-Glycopyranosides and C-glycofuranosides were identilied using 'jC and 'H chemical shift and coupling constant data. Full assignments for all a-and gaoomers were made possible by recourse to carboeproton chemical shift correlation spectroscopy. Greater steric shielding effects were observed on the carbon atoms in cis-l,&ubstituted compounds compared with their trans counterparts. Consistent proton chemical shift differences were also noted in that the anomeric protons resonate at lower field in all cis-1,2-isomers.

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