Chapter 23, Problem 23.40P

Interpretation Introduction

Interpretation:

Whether the nitroso group $\text{(}-\text{N=O)}$ is ortho/para or meta director, it is to be explained.

Concept introduction:

The electron donating groups activates the aromatic ring. The electron donating groups increases the electron density at ortho-para position and thus they are ortho-para directing. That means electrophilic aromatic substitution preferably occurs at ortho-para position.