Scheme 6.
Correlation between pKa value of the employed acids (or alcohol) and the favoured anomeric configuration of the respective product. aCarried out at 0 °C; bcarried out at rt [27].
Correlation between pKa value of the employed acids (or alcohol) and the favoured anomeric configuration of the respective product. aCarried out at 0 °C; bcarried out at rt [27].