Chapter 9.3, Problem 18P

(a)

Interpretation Introduction

Interpretation:

The stereoisomers that are obtained from the given ${\text{S}}_{\text{N}}\text{1}$ reaction has to be drawn.

Concept Introduction:

• Unimolecular nucleophilic substitution reaction in which the reversible ionization of alkyl halide in the presence of aqueous acetone or an aqueous ethyl alcohol provides a carbocation as an intermediate, attacked by the nucleophile to form the product.
• If the leaving group in ${\text{S}}_{\text{N}}\text{1}$ reaction is attached to the asymmetric carbon, a pair of enantiomers will be formed.
• An enantiomer, also known as an optical isomer, is one of two stereoisomers that are mirror images of each other that are non-superimposable.

(b)

Interpretation Introduction

Interpretation:

The stereoisomers that are obtained from the given ${\text{S}}_{\text{N}}\text{1}$ reaction has to be drawn.

Concept Introduction:

• Unimolecular nucleophilic substitution reaction in which the reversible ionization of alkyl halide in the presence of aqueous acetone or an aqueous ethyl alcohol provides a carbocation as an intermediate, attacked by the nucleophile to form the product.
• If the leaving group in ${\text{S}}_{\text{N}}\text{1}$ reaction is attached to the asymmetric carbon, a pair of enantiomers will be formed.
• An enantiomer, also known as an optical isomer, is one of two stereoisomers that are mirror images of each other that are non-superimposable.