Chapter 9, Problem 9.79P

Interpretation Introduction

Interpretation:

The detailed mechanism for the given reaction with major product, including stereochemistry, is to be drawn.

Concept introduction:

The ${\text{S}}_{\text{N}}\text{2}$ is a single step bimolecular nucleophilic substitution reaction. The rate of ${\text{S}}_{\text{N}}\text{2}$ reaction depends on both the substrate as well as the nucleophile. The stronger nucleophile promotes ${\text{S}}_{\text{N}}\text{2}$ reaction. An aprotic solvent cannot solvate the nucleophiles and thus increases the strength of the nucleophile, thus increasing the rate of the ${\text{S}}_{\text{N}}\text{2}$ reaction.

In ${\text{S}}_{\text{N}}2$ reaction, the nucleophile attacks the electrophilic carbon from the opposite side of the leaving group, which results in the inversion of the configuration at the electrophilic carbon in the product.