Chapter 24.6, Problem 5P

Interpretation Introduction

Interpretation:

The proper D, L and $\text{α, β}$ stereochemical descriptors to each of the given stereoisomeric threofuranoses are to be stated.

Concept introduction:

A carbon atom that has four non-equivalent atoms or groups attached to it is known as the chiral carbon atom. Chiral carbon centers are also called as asymmetric or stereogenic centers.

The configuration of the Fisher projection of sugars are said to be D- and L- sugar if the $\text{OH}$ group present on the stereogenic center is on the right and the left side respectively.

The Howarth formula of sugars is represented by the ring containing oxygen atom and the anomeric carbon atom at its right side.