Abstract
The nuclear magnetic resonance spectra of anomeric pairs of acetylated aryl D-glycopyranosides were measured in deuteriochloroform at 60 MHz. The shift reagent Eu (FOD)3 proved to be useful to distinguish the H-1 proton of the β-anomer and permitted the assignment of all the ring protons in some cases. The virtual long-range coupling of the H-5 proton with the H-3 proton of aryl β-D-glucopyranosiduronates was confirmed with an aid of the shift reagent. All of the acetoxy signals were well resolved by the addition of the shift reagent.
