Chapter 17, Problem 17.58AP

Interpretation Introduction

(a)

Interpretation:

A mechanism which is consistent with all the experimental facts is to be suggested.

Concept introduction:

The nucleophilic substitution reactions are the reactions in which one nucleophile is substituted by another nucleophile. These reactions depend upon the nucleophilicity and concentration of the nucleophile. The ${\text{S}}_{\text{N}}\text{2}$ reaction is a nucleophilic substitution bimolecular single step reaction in which the addition of nucleophile and removal of leaving group takes place simultaneously.

Interpretation Introduction

(b)

Interpretation:

A reason as to why the reaction $2$ occurs by the ${\text{S}}_{\text{N}}{\text{2}}^{\prime }$ mechanism while the reaction $1$ does not is to be stated.

Concept introduction:

The nucleophilic substitution reactions are the reactions in which one nucleophile is substituted by another nucleophile. These reactions depend upon the nucleophilicity and concentration of the nucleophile. The ${\text{S}}_{\text{N}}\text{2}$ reaction is a nucleophilic substitution bimolecular single step reaction in which the addition of nucleophile and removal of leaving group takes place simultaneously.