Chapter 20, Problem 69P

Interpretation Introduction

Interpretation:

Whether $\text{D}-\text{altrose}$ exists preferentially as a pyranose or furanose has to be predicted.

Concept Introduction:

Carbohydrates are made from carbon, oxygen and hydrogen atoms and the wide numbers of isomers exist for the carbohydrates because of the presence of chiral Carbon atoms.

Pyranose are the compounds that comprise six-membered ring made of one Oxygen and five Carbon atoms, whereas furanose is the carbohydrates that comprise five-membered ring made of one Oxygen and four carbon atoms.