For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated. Concept introduction: In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide. The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes . The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base. Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base. To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

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Answer 1

Question

Chapter 8, Problem 74PP

(a)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(b)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(c)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(d)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

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Answer 2

Question

Chapter 8, Problem 74PP

(a)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(b)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(c)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(d)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

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Answer 3

Question

Chapter 8, Problem 74PP

(a)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(b)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(c)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(d)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

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Answer 4

Question

Chapter 8, Problem 74PP

(a)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(b)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(c)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(d)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

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Answer 5

Chapter 8, Problem 74PP

(a)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(b)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(c)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

(d)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

Answer 6

Chapter 8, Problem 74PP

(a)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

Answer 7

Chapter 8, Problem 74PP

(a)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

Answer 8

(b)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

Answer 9

(b)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

Answer 10

(c)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

Answer 11

(c)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

Answer 12

(d)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

Answer 13

(d)

Interpretation Introduction

Interpretation:

For the given transformation whether sodium ethoxide or potassium tert-butoxide is used as the base is needed to be indicated.

Concept introduction:

In an elimination reaction, alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

The product of the elimination reaction is depends upon the β-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 this type of reaction is called regioselective and the products are called as regiochemical outcomes.

The bulkiness of the base controls the regioselectivity in an elimination reaction. According to Zaitsev product rule the more substituted alkene is formed from non-sterically hindered base. According to Hofmann product rule the less substituted alkene is formed from sterically hindered base.

Sodium ethoxide is a non-sterically hindered base and potassium tert-butoxide is a sterically hindered base.

To indicate: whether sodium ethoxide or potassium tert-butoxide is used for the given transformations.

Answer 14

Expert Solution & Answer

Answer 15

Expert Solution & Answer

Answer 16

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Answer 17

Ch. 8.3 - Prob. 1LTS Ch. 8.3 - Prob. 1PTS Ch. 8.3 - Prob. 2ATS Ch. 8.3 - Prob. 3ATS Ch. 8.3 - Prob. 4CC Ch. 8.4 - Prob. 2LTS Ch. 8.4 - Prob. 5PTS Ch. 8.4 - Prob. 6ATS Ch. 8.5 - Prob. 3LTS Ch. 8.5 - Prob. 7PTS

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Chapter 8 Solutions