Chapter 7, Problem 17CTQ

Interpretation Introduction

Interpretation: The structure of cis-1, 3-dimethylcyclohexane needs to be drawn in the chair conformation and the same molecule needs to be drawn after the chair flip.

Concept Introduction: Chair conformation is the most stable conformation of cyclohexane. It is represented as follows:

  

Here, the substituted groups in the chair conformation are represented as follows:

  

The groups showing in straight upward and downward directions are axial and the groups bend slightly right or left are equatorial.

During the flipping, no bond is break. The numbering in the chair form is represented as follows:

  

During ring flipping, mirror image of the chair conformation is formed.

It is represented as follows:

  

Now, the ring flipping with groups attached can be represented as follows;