Chapter 23, Problem 20P

Interpretation Introduction

Interpretation:

The compounds A, B and C in the given synthetic sequence are to be identified.

Concept Introduction:

Phenols contain hydroxyl $\left(\text{OH}\right)$ functional group attached to an aromatic ring.

Phenols undergo electrophilic aromatic substitution reaction due to the presence of the hydroxyl group that activates itself towards electrophilic substitution. The hydroxyl group causes the resonance effect due to which the ortho and para positions of phenol ring become electron rich.