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1H and 13C NMR assignment of maltitol by a combination of 2D NMR and H/D isotope effects on nuclear shielding

✍ Scribed by R. E. Hoffman; D. B. Davies

Publisher: John Wiley and Sons
Year: 1988
Tongue: English
Weight: 369 KB
Volume: 26
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1260260514

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✦ Synopsis

Maltitol was assigned unequivocally without any need for reference to model compounds by a combination of 2D, SIMPLE (secondary isotope multiplets of partially labelled entities) and DIS (differential isotope shift) NMR techniques. The combination of these three techniques is very powerful for the assignment of molecules with many exchangeable hydrogen atoms, such as carbohydrates. In the case of maltitol a complete I3C NMR assignment was achieved in three solvents [H,O, D,O and (CD3),SOI using three experiments. A 'H-"C 2D correlation experiment allowed the 'H NMR spectrum to be assigned unequivocally for the first time.

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