Chapter 7, Problem 7.29P

Interpretation Introduction

(a)

Interpretation: The likely mechanism of nucleophilic substitution for the given alkyl halide is to be predicted.

Concept introduction: Nucleophilic substitution reaction takes place by two mechanisms, ${\text{S}}_{\text{N}}\text{1}$ and ${\text{S}}_{\text{N}}\text{2}$. In ${\text{S}}_{\text{N}}\text{1}$ mechanism, formation of carbocation takes place by removal of halide and then nucleophile attack occurs on that carbocation. However in ${\text{S}}_{\text{N}}\text{2}$ mechanism, removal of halide and attack of nucleophile takes place simultaneously.

Interpretation Introduction

(b)

Interpretation: The likely mechanism of nucleophilic substitution for the given alkyl halide is to be predicted.

Concept introduction: Nucleophilic substitution reaction takes place by two mechanisms, ${\text{S}}_{\text{N}}\text{1}$ and ${\text{S}}_{\text{N}}\text{2}$. In ${\text{S}}_{\text{N}}\text{1}$ mechanism, formation of carbocation takes place by removal of halide and then nucleophile attack occurs on that carbocation. However in ${\text{S}}_{\text{N}}\text{2}$ mechanism, removal of halide and attack of nucleophile takes place simultaneously

Interpretation Introduction

(c)

Interpretation: The likely mechanism of nucleophilic substitution for the given alkyl halide is to be predicted.

Concept introduction: Nucleophilic substitution reaction takes place by two mechanisms, ${\text{S}}_{\text{N}}\text{1}$ and ${\text{S}}_{\text{N}}\text{2}$. In ${\text{S}}_{\text{N}}\text{1}$ mechanism, formation of carbocation takes place by removal of halide and then nucleophile attack occurs on that carbocation. However in ${\text{S}}_{\text{N}}\text{2}$ mechanism, removal of halide and attack of nucleophile takes place simultaneously.

Interpretation Introduction

(d)

Interpretation: The likely mechanism of nucleophilic substitution for the given alkyl halide is to be predicted.

Concept introduction: Nucleophilic substitution reaction takes place by two mechanisms, ${\text{S}}_{\text{N}}\text{1}$ and ${\text{S}}_{\text{N}}\text{2}$. In ${\text{S}}_{\text{N}}\text{1}$ mechanism, formation of carbocation takes place by removal of halide and then nucleophile attack occurs on that carbocation. However in ${\text{S}}_{\text{N}}\text{2}$ mechanism, removal of halide and attack of nucleophile takes place simultaneously.