Hydroxy Group Acidities of Partially Protected Glycopyranosides
作者:Martin Matwiejuk、Joachim Thiem
DOI:10.1002/ejoc.201101708
日期:2012.4
A comprehensive acidity study of carbohydrate hydroxygroups has been carried out. Relative acidities (Ke) were determined spectrophotometrically for partially methylated methyl α-D-glycopyranosides. Apparently, the acidity is strongly affected by intramolecular hydrogen bonding as well as stereochemistry and solvation. By comparison with pKe and pKa values of aliphatic alcohols and polyols the first