Chapter 8, Problem 8.12P

Interpretation Introduction

Interpretation:

The complete, detailed mechanism and products for the given reaction are to be drawn assuming that it takes place via an ${\text{S}}_{\text{N}}2$ mechanism, paying attention to stereochemistry Concept introduction:

${\text{S}}_{\text{N}}2$ reaction is the bimolecular nucleophilic substitution reaction. The halide group in the substrate acts as a good leaving group. In an ${\text{S}}_{\text{N}}2$ reaction, the incoming nucleophile attacks the carbon that is bonded to the leaving group, with the leaving group breaking off simultaneously with its bond pair. The incoming group must attack the carbon from a direction opposite the leaving group. The result is generally a single product. As ${\text{S}}_{\text{N}}2$  reaction is a single-step reaction, the stereo-specificity suggests that the nucleophile attacks the substrate exclusively from the side opposite the leaving group, producing a single stereoisomer. Thus, ${\text{S}}_{\text{N}}2$  reactions are stereospecific.