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Structure and solution equilibria of D-glucose and D-mannose sulfite adducts
E R Cole1, D C Craig, L J Fitzpatrick
1School of Chemistry, University of New South Wales, Sydney 2052, Australia.
Carbohydrate Research
|September 13, 2001
Abstract:
An X-ray crystallographic study has confirmed that the potassium bisulfite adducts of D-glucose and D-mannose have open-chain structures with R and S configurations respectively at C-1. NMR studies have shown that each sugar gives rise to two bisulfite compounds, and solution-state structures and conformations of these isomers have been deduced from analysis of (1)H NMR spectra. (13)C NMR data for the four adducts are given. Furanose forms of the D-glucose and D-mannose have been detected in the equilibrium solutions.