The variable temperature1H NMR spectra of the signals of the C-6 protons of 2-hydroxy-3-methylphenyl β-D-glucopyranoside (9a) and its 2,3,4,6-tetra-O-acetyl derivative (2a) had previously been interpreted as indicating that there was slow rotation around the C5-C6 bond in2aand for9a, that thetgrotamer was significantly populated while thegtrotamer had a negligible population. The data was reanalysed to demonstrate that neither conclusion was valid.