Chapter 4, Problem 4.9YT

Interpretation Introduction

Interpretation:

The anti and gauche conformations among the given two structures are to be identified.

Concept introduction:

Staggered conformations are of two types, anti and gauche. In a Newman project, when the two bulky groups on adjacent carbons are placed about ${\text{180}}^{\text{o}}$ apart (opposite to each other), it is called anti conformation, and if the two bulky groups on adjacent carbons are placed about ${\text{60}}^{\text{o}}$ apart (i.e., alternate to each other), then the conformation is called gauche conformation.