Chapter 23, Problem 23.32P

Interpretation Introduction

Interpretation:

The preparation method of methyl orange, from aniline as only starting organic material is to be predicted.

Concept Introduction

An aromatic compound, with highly activating groups like amines and phenols, on reaction with aryldiazonium undergoes electrophilic substitution reaction. They give substituted azobenzene $\left(\text{Ph}-:\text{N}={\text{N}}^{+}-\text{Ph}\right)$. This azobenzene again undergoes substitution reaction with strong acid.