Chapter 23.10, Problem 23.29P

Interpretation Introduction

Interpretation:

The Ruff degradation of $\text{D}-\text{mannose}$ gives the same aldopentose $\left(\text{D}-\text{arabinose}\right)$ as $\text{D}-\text{glucose}$ is to be determined.

Concept introduction:

Ruff degradation is a method which is used to shorten sugar chain. It is a two step process which starts with a bromine-water oxidation of the aldose to its aldonic acid. Then in the second step treatment of aldonic acid with hydrogen peroxide and ferric sulfate oxidizes the carbonyl group to ${\text{CO}}_{\text{2}}$ and give aldose with one fewer carbon atom.