Chapter 19.22, Problem 37P

Interpretation Introduction

Interpretation:

The explanation for nucleophilic attack on terminal nitrogen of diazonium ion rather than on nitrogen that has formal positive charge is to be stated.

Concept Introduction:

An electrophilic substitution reaction between highly activated aromatic ring and arene-diazonium ion electrophile leads to the formation of azo linkage $\left(\text{N}=\text{N}\right)$. The reaction is highly favorable when electron withdrawing group is present on arene-diazonium ion and electron donating group on aromatic ring.