Chapter 4, Problem 4.20YT

Interpretation Introduction

Interpretation:

In the given model, hydrogen atoms on the ring, which are involved in $\text{1, 3-diaxial}$ interactions with the ${\text{CH}}_{\text{3}}$ group and ${\text{CH}}_2$ groups gauche to the ${\text{CH}}_3$ group, are to be identified.

Concept introduction:

In chair conformation of mono substituted cyclohexane, the axial methyl groups and axial hydrogen atom experience diaxial repulsion; $\text{1, 3-diaxial}$ interactions result to the gauche interaction between C atoms.