Chapter 24, Problem 24.44AP

Interpretation Introduction

(a)

Interpretation:

The relationship between glucose and mannose is to be stated as they both give same osazone.

Concept Introduction:

Aldose are the carbohydrates which contains aldehyde as functional group. Osazone are formed when carbohydrates reacts with excess of phenylhydrazine. In osazone formation the stereochemistry of $\text{C}-1$ and $\text{C}-2$ carbons is lost. Epimers are those compounds which differ in configuration at only one carbon.

Interpretation Introduction

(b)

Interpretation:

The aldopentose that gives the same osazone as $\text{D}-$ arabinose is to be stated.

Concept Introduction:

Aldose are the carbohydrates which contains aldehyde as functional group. Osazone are formed when carbohydrates reacts with excess of phenylhydrazine. In osazone formation the stereochemistry of $\text{C}-1$ and $\text{C}-2$ carbons is lost. Epimers are those compounds which differ in configuration at only one carbon.