Chapter 9, Problem 9.83P

Interpretation Introduction

Interpretation:

In the given sequence of reaction, structures for A and B with proper stereochemistry are to be predicted.

Concept introduction:

Strong nucleophile favors ${\text{S}}_{\text{N}}\text{2}$ reaction. Stereiochemical configuration of a product is inert as compared to the reactant. The product of ${\text{S}}_{\text{N}}\text{2}$ reaction shows inversion of configuration.