Chapter 18, Problem 18.75EP

Interpretation Introduction

Interpretation: The classification of the given monosaccharide structure whether as an $\alpha -\text{anomer}$ or a $\beta -\text{anomer}$ has to be stated.

Concept introduction: An anomer can be divided into two types, $\alpha -\text{anomer}$ and $\beta -\text{anomer}$.  In $\alpha -\text{anomer}$, the cyclic ring contains $\text{OH}$ group at the opposite side of the ring from the group, ${\text{CH}}_{\text{2}}\text{OH}$.  On the other hand, in $\beta -\text{anomer}$, the cyclic ring contains $\text{OH}$ group at the same side of the ring from the group, ${\text{CH}}_{\text{2}}\text{OH}$.