Chapter 22, Problem 22P

Interpretation Introduction

Interpretation:

Structure for the pyranose and furanose forms of the D-ribose are to be drawn and a distinction between methyl ribopyranoside and methyl ribofuranoside molecules using periodate oxidation is to be shown.

Concept Introduction:

▸ The pyranoses are six-membered monosaccharide ring structures. The furanoses are five-membered monosaccharide ring structures.

▸ The Fischer projection and Haworth’s formulas are different ways of representing the biomolecules with cross formulation of the open chain structures of aldoses, such as $\text{D}-\text{Glucose}$.

▸ ${\text{HIO}}_{\text{4}}$ is known as the periodic acid. It is used for oxidative cleavage of the compounds having hydroxyl groups on adjacent atoms, to produce respective aldehydes, ketones and acids.