Collect. Czech. Chem. Commun. 1987, 52, 1501-1513

Analysis of oligosaccharides. 29Si and 13C NMR spectra of pertrimethylsilylated oligosaccharides derived from xylopyranose

Eva Petrákováa, Jan Schramlb, Ján Hirscha, Magdalena Kvíčalováb, Jan Zelenýb and Václav Chvalovskýb

a Institute of Chemistry, Slovak Academy of Sciences, 842 38 Bratislava
b Institute of Chemical Process Fundamentals, Czechoslovak Academy of Sciences, 165 02 Prague 6-Suchdol


29Si and 13C chemical shifts are reported for a series of 30 pertrimethylsilylated oligosaccharides containing xylopyranosyl unit. The number of lines in 29Si NMR spectra is in all cases in agreement with the number of hydroxyl groups present in the parent compound prior to trimethylsilylation. The results demonstrate the usefulness of 29Si NMR spectroscopy for the analysis of oligosaccharides and other polyfunctional compounds. The validity of direct additivity of 13C chemical shifts is tested on some model trisaccharides.