Chapter 7, Problem 65PP

(a)

Interpretation Introduction

Interpretation:

The alkyl halide which is used in the given E2 reaction has to be drawn.

Concept Introduction:

Elimination Reaction: It is just reverse reaction of addition where substituent from the given molecule is removed via $E1$ (the reaction depends only on the substrate involved in the reaction) or $E2$ (the reaction depends on both of the substituents in the reaction) mechanism.

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one $\beta$-proton and one $\alpha$ -halo group of the alkyl halide. The double bond is located between $\alpha ,\beta$-carbons.

The product of the elimination reaction is depends upon the $\beta$-positions of alkyl halide. If the β-positions are identical and the products formed are also identical. If the β-positions are different and the products formed are also different. This means the double bond can form in two different regions, so it will give different alkene products.

(b)

Interpretation Introduction

Interpretation:

The alkyl halide which is used in the given $E2$ reaction has to be drawn.

Concept Introduction:

Elimination Reaction: It is just reverse reaction of addition where substituent from the given molecule is removed via $E1$ (the reaction depends only on the substrate involved in the reaction) or $E2$ (the reaction depends on both of the substituents in the reaction) mechanism.

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one $\beta$-proton and one $\alpha$ -halo group of the alkyl halide. The double bond is located between $\alpha ,\beta$-carbons.

The product of the elimination reaction is depends upon the $\beta$-positions of alkyl halide. If the β-positions are identical and the products formed are also identical. If the β-positions are different and the products formed are also different. This means the double bond can form in two different regions, so it will give different alkene products.

(c)

Interpretation Introduction

Interpretation:

The alkyl halide which is used in the given $E2$ reaction has to be drawn.

Concept Introduction:

Elimination Reaction: It is just reverse reaction of addition where substituent from the given molecule is removed via $E1$ (the reaction depends only on the substrate involved in the reaction) or $E2$ (the reaction depends on both of the substituents in the reaction) mechanism.

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one $\beta$-proton and one $\alpha$ -halo group of the alkyl halide. The double bond is located between $\alpha ,\beta$-carbons.

The product of the elimination reaction is depends upon the $\beta$-positions of alkyl halide. If the β-positions are identical and the products formed are also identical. If the β-positions are different and the products formed are also different. This means the double bond can form in two different regions, so it will give different alkene products.

(d)

Interpretation Introduction

Interpretation:

The alkyl halide which is used in the given $E2$ reaction has to be drawn.

Concept Introduction:

Elimination Reaction: It is just reverse reaction of addition where substituent from the given molecule is removed via $E1$ (the reaction depends only on the substrate involved in the reaction) or $E2$ (the reaction depends on both of the substituents in the reaction) mechanism.

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one $\beta$-proton and one $\alpha$ -halo group of the alkyl halide. The double bond is located between $\alpha ,\beta$-carbons.

The product of the elimination reaction is depends upon the $\beta$-positions of alkyl halide. If the β-positions are identical and the products formed are also identical. If the β-positions are different and the products formed are also different. This means the double bond can form in two different regions, so it will give different alkene products.