Chapter 15.8, Problem 12P

Interpretation Introduction

Interpretation: The product formed by the reaction of $\text{cyclohepta-1, 3, 5-triene }\left(\text{p}{K}_{\text{a}}=39\right)$ with a strong base is to be drawn. The reason corresponding to the fact that the $\text{p}{K}_{\text{a}}$ of the product is higher than $\text{p}{K}_{\text{a}}$ of cyclopentadiene is to be stated.

Concept introduction: The movement of delocalized pi electrons leads to the formation of resonance structures. The stability of a compound depends upon the number of resonating structures. The compounds which follow the Huckel rule of aromaticity are known as aromatic compound. The acidity of aromatic compounds is measured by the $\text{p}{K}_{\text{a}}$ value. Higher the value of $\text{p}{K}_{\text{a}}$, lower is the acidic strength of a compound.