Assignment of 2, 3, 4 Acetylated Glycosides by the Lanthanide Induced “Cross-Over” Phenomenon-a Preliminary Investigation†
This work was carried out at the Department of Chemistry and Biochemistry, James Cook University, Australia.
Abstract
The “cross-over” phenomenon induced by lanthanide shift reagents is investigated as a means for accurately assigning the 2, 3 and 4 ring O-acetyl proton signals in the nuclear magnetic resonance spectrum of acetylated carbohydrates.