Chapter 8.9, Problem 21P

(a)

Interpretation Introduction

Interpretation:

Which of the compounds would react faster in ${\text{S}}_{\text{N}}\text{1}/{\text{S}}_{\text{N}}\text{2}/\text{E1}/\text{E2}$ has to be identified.

Concept Introduction:

• E1 reaction is a unimolecular elimination reaction in which rate of the reaction depends on the concentration of alkyl halide.
• The alkyl halide dissociates to form a carbocation. The base abstract a proton from the $\text{β-carbon}$.
• ${\text{S}}_{\text{N}}\text{1}$Reaction: it is a nucleophilic substitution reaction in which the rate determining step depends on one reactant.
• ${\text{S}}_{\text{N}}2$Reaction: It is a nucleophilic substitution reaction in which the rate determining step depends on both of the molecules involved.

(b)

Interpretation Introduction

Interpretation:

Which of the compounds would react faster in ${\text{S}}_{\text{N}}\text{1}/{\text{S}}_{\text{N}}\text{2}/\text{E1}/\text{E2}$ has to be identified.

Concept Introduction:

• E1 reaction is a unimolecular elimination reaction in which rate of the reaction depends on the concentration of alkyl halide.
• The alkyl halide dissociates to form a carbocation. The base abstract a proton from the $\text{β-carbon}$.
• ${\text{S}}_{\text{N}}\text{1}$Reaction: it is a nucleophilic substitution reaction in which the rate determining step depends on one reactant.
• ${\text{S}}_{\text{N}}2$Reaction: It is a nucleophilic substitution reaction in which the rate determining step depends on both of the molecules involved.

(c)

Interpretation Introduction

Interpretation:

Which of the compounds would react faster in ${\text{S}}_{\text{N}}\text{1}/{\text{S}}_{\text{N}}\text{2}/\text{E1}/\text{E2}$ has to be identified.

Concept Introduction:

• E1 reaction is a unimolecular elimination reaction in which rate of the reaction depends on the concentration of alkyl halide.
• The alkyl halide dissociates to form a carbocation. The base abstract a proton from the $\text{β-carbon}$.
• ${\text{S}}_{\text{N}}\text{1}$Reaction: it is a nucleophilic substitution reaction in which the rate determining step depends on one reactant.
• ${\text{S}}_{\text{N}}2$Reaction: It is a nucleophilic substitution reaction in which the rate determining step depends on both of the molecules involved.

(d)

Interpretation Introduction

Interpretation:

Which of the compounds would react faster in ${\text{S}}_{\text{N}}\text{1}/{\text{S}}_{\text{N}}\text{2}/\text{E1}/\text{E2}$ has to be identified.

Concept Introduction:

• E1 reaction is a unimolecular elimination reaction in which rate of the reaction depends on the concentration of alkyl halide.
• The alkyl halide dissociates to form a carbocation. The base abstract a proton from the $\text{β-carbon}$.
• ${\text{S}}_{\text{N}}\text{1}$Reaction: it is a nucleophilic substitution reaction in which the rate determining step depends on one reactant.
• ${\text{S}}_{\text{N}}2$Reaction: It is a nucleophilic substitution reaction in which the rate determining step depends on both of the molecules involved.