Chapter 21, Problem 25E

Interpretation Introduction

Interpretation: The cis and trans isomers of $1,2-\text{dimethylcyclohexane}$ needs to be drawn.

Concept introduction: Cis-trans isomerism is also known as configurational or geometrical isomerism. The prefixes cis and trans are Latin words in which ‘‘cis’’ represents ‘‘this side of’’ and ‘‘trans’’ represents ‘‘the other side’’. This type of isomerism occurs in unsaturated compounds (i.e. double bonds) or cyclic compounds depending on the presence of substituted groups in a molecule.