Chapter 20, Problem 20.76CP

Interpretation Introduction

Interpretation:

The $\text{α}\text{isomer}$ of D-fructose in six membered ring has to be drawn.

Concept introduction:

• Haworth projection is used to represent sugars in their cyclic hemiacetal forms.
• In Haworth projection of fructose,
• $\text{α}$-indicates the $–OH$ group of anomeric carbon $C2$ on upward direction. $\beta$-indicates the $–OH$ group of anomeric carbon $C2$ on downward.