Chapter 16, Problem 16.46AP

Interpretation Introduction

Interpretation:

The compounds $A$, $B$, $C$, and $D$ are to be arranged in increasing order of reactivity in electrophilic bromination. Whether the principal monobromination products of the corresponding reaction is ortho and para isomers or the meta isomer is to be stated. Whether the compounds $A$, $B$, $C$, and $D$ would be more or less reactive than benzene is to be identified. The point that would cause any uncertainty in the corresponding answer is to be explained.

Concept introduction:

The replacement of hydrogen atom attached to a carbon atom of electron-rich benzene ring by an electrophile is known as electrophilic aromatic substitution reaction. The rate of electrophilic aromatic substitution reaction depends on the substituted group on the aromatic ring. The ring deactivating group retards the electrophilic aromatic substitution reaction and ring activating group enhances the electrophilic aromatic substitution reaction.