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29Si and 13C NMR spectra of all possible pertrimethylsilylated β-D-xylopyranosyl-substituted methyl 4-O-β-D-xylopyranosyl-β-D-xylopyranosides assigned by 2D heteronuclear 1H-29Si and 1H-13C chemical shift correlations

✍ Scribed by J. Schraml; E. Petráková; J. Hirsch

Publisher: John Wiley and Sons
Year: 1987
Tongue: English
Weight: 503 KB
Volume: 25
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1260250118

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✦ Synopsis

Si and ''C NMR spectra of all possible pertrimethylsilylated p-D-xylopyranosyl-substituted methyl 4-0-p-Dxylopyranosyl-p-D-xylopyranosides are assigned by heteronuclear 'H-X 2D NMR chemical shift correlation experiments, where X = C or Si. It is shown that the 29Si NMR spectra can be used for identification of the glycosidation site and ring assignments. The silicon chemical shifts do not follow any simple rule that would allow empirical assignment.

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