D. Lamba et al., STRUCTURAL-ANALYSIS OF METHYL ALPHA-L-FUCOPYRANOSIDE BY X-RAY CRYSTALLOGRAPHY, NMR-SPECTROSCOPY, AND MOLECULAR MECHANICS CALCULATIONS, Carbohydrate research, 243(2), 1993, pp. 217-224
The crystal and molecular structures of methyl alpha-L-fucopyranoside
are reported. The sugar ring has the expected C-1(4) conformation. The
H-1 NMR spectrum at 600 MHz was fully analysed. The conformation of t
he pyranose ring in solution, derived from 3J(HH) values, was very sim
ilar to that in the crystal. All these features have been rationalised
through molecular mechanics calculations.