Journal ArticleDOI
Nuclear Magnetic Resonance Spectroscopy. Carbon-13 Spectra of Some Inositols and Their O-Methylated Derivatives
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TLDR
In this paper, the C nmr spectra of some inositols and their partially O-methylated derivatives are tabulated and discussed, and a system of empirical constants which can be used to estimate the spectral properties of the carbons of these ring systems is derived.Abstract:
The ^(13)C nmr spectra of some inositols and their partially O-methylated derivatives are tabulated and
discussed. Methods of assignment are detailed. A system of empirical constants which can be used to estimate
the spectra of the carbons of these ring systems is derived. The substituent effects are noted to conform generally to the notion that steric or proximity effects are very important sources of chemical-shift differences in these systems.read more
Citations
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Journal ArticleDOI
The 13C-n.m.r. spectra of inositols and cyclohexanepentols: the validity of rules correlating chemical shifts with configuration
Stephen J. Angyal,Léon Odier +1 more
TL;DR: In this article, the additive empirical constants used to correlate the configuration of hydroxyl groups with the 13 C-chemical shifts differ, in the latter group, from those derived for the inositols.
Journal ArticleDOI
A 13C nuclear magnetic resonance study of a gel-forming branched (1→3)-β-D-glucan, A3, from Pleurotus ostreatus (Fr.) quél: Determination of side-chains and conformation of the polymer-chain in relation to gel-structure
TL;DR: In this article, the conformation of neutral polysaccharides has been investigated in comparison with that of polypeptides and polynucleotides, especially of (l-+3)$-D-glucans.
Journal ArticleDOI
Fourier-transform 13C nuclear magnetic resonance spectra of D-glucose 3- and 6-sulfates
Journal ArticleDOI
The anthelmintic activity of d-3-O-methylchiroinositol isolated from Piliostigma thonningii stem bark
Journal ArticleDOI
The effect of O-methylation on chemical shifts in the 1H- and 13C-n.m.r. spectra of cyclic polyols
Stephen J. Angyal,Léon Odier +1 more
TL;DR: In this article, the 1H- and 13C-n.m.r. spectra of seven inositol methyl ethers were extracted and classified into five types, and the effect of O-methylation on the chemical shifts of each type was discussed.