(a) Interpretation: The following reactions by giving the major organic product(s), including stereochemistry is to be completed. Concept introduction: Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved. In [4+2] cycloaddition one component is having four electrons and other component is having two electrons.

Question

Want to see the full answer?

Answer 1

Question

Chapter 28, Problem 28.33AP

Interpretation Introduction

(a)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved. In [4+2] cycloaddition one component is having four electrons and other component is having two electrons.

Interpretation Introduction

(b)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Sigmatropic reaction can be described as the migration of allylic sigma bond at one end of the π-electron system to the other end of the π-electron system as an uncatalyzed intramolecular reaction. In some cases, Lewis acid catalysts can also be applied. Though, the position of π-bond is changed in Sigmatropic reaction, the total number of π-bonds remain unchanged. The sigma bond can be cleaved at the middle or at the end of the π-system. The formation of sigma bond at 3, 3-position of a 1, 5-diene is called as cope rearrangement.

Interpretation Introduction

(c)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved.

Interpretation Introduction

(d)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Generally, [3, 3] sigmatropic reactions of 1, 5-diences are called as cope reactions. When the diene is having the oxygen at C3 or C4 position the sigmatropic reaction is called as oxy cope reaction. Notably, when the alkoxide fragment is involved it is referred as anionic oxy cope reaction. Moreover, the enhanced increase in rate of sigmatropic reaction and the decreased in the reaction temperature is observed as compared to parent alcohols.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Complete the following reactions, clearly indicating regio-and stereochemistry where applicable. In cases, where ortho-and para-products are formed, draw both.

Give the major organic products from the following reactions

Give the major product of the following reactions with the appropriate stereochemistry and Regiochemistry.

Answer 2

Question

Chapter 28, Problem 28.33AP

Interpretation Introduction

(a)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved. In [4+2] cycloaddition one component is having four electrons and other component is having two electrons.

Interpretation Introduction

(b)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Sigmatropic reaction can be described as the migration of allylic sigma bond at one end of the π-electron system to the other end of the π-electron system as an uncatalyzed intramolecular reaction. In some cases, Lewis acid catalysts can also be applied. Though, the position of π-bond is changed in Sigmatropic reaction, the total number of π-bonds remain unchanged. The sigma bond can be cleaved at the middle or at the end of the π-system. The formation of sigma bond at 3, 3-position of a 1, 5-diene is called as cope rearrangement.

Interpretation Introduction

(c)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved.

Interpretation Introduction

(d)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Generally, [3, 3] sigmatropic reactions of 1, 5-diences are called as cope reactions. When the diene is having the oxygen at C3 or C4 position the sigmatropic reaction is called as oxy cope reaction. Notably, when the alkoxide fragment is involved it is referred as anionic oxy cope reaction. Moreover, the enhanced increase in rate of sigmatropic reaction and the decreased in the reaction temperature is observed as compared to parent alcohols.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 28, Problem 28.33AP

Interpretation Introduction

(a)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved. In [4+2] cycloaddition one component is having four electrons and other component is having two electrons.

Interpretation Introduction

(b)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Sigmatropic reaction can be described as the migration of allylic sigma bond at one end of the π-electron system to the other end of the π-electron system as an uncatalyzed intramolecular reaction. In some cases, Lewis acid catalysts can also be applied. Though, the position of π-bond is changed in Sigmatropic reaction, the total number of π-bonds remain unchanged. The sigma bond can be cleaved at the middle or at the end of the π-system. The formation of sigma bond at 3, 3-position of a 1, 5-diene is called as cope rearrangement.

Interpretation Introduction

(c)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved.

Interpretation Introduction

(d)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Generally, [3, 3] sigmatropic reactions of 1, 5-diences are called as cope reactions. When the diene is having the oxygen at C3 or C4 position the sigmatropic reaction is called as oxy cope reaction. Notably, when the alkoxide fragment is involved it is referred as anionic oxy cope reaction. Moreover, the enhanced increase in rate of sigmatropic reaction and the decreased in the reaction temperature is observed as compared to parent alcohols.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 28, Problem 28.33AP

Interpretation Introduction

(a)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved. In [4+2] cycloaddition one component is having four electrons and other component is having two electrons.

Interpretation Introduction

(b)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Sigmatropic reaction can be described as the migration of allylic sigma bond at one end of the π-electron system to the other end of the π-electron system as an uncatalyzed intramolecular reaction. In some cases, Lewis acid catalysts can also be applied. Though, the position of π-bond is changed in Sigmatropic reaction, the total number of π-bonds remain unchanged. The sigma bond can be cleaved at the middle or at the end of the π-system. The formation of sigma bond at 3, 3-position of a 1, 5-diene is called as cope rearrangement.

Interpretation Introduction

(c)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved.

Interpretation Introduction

(d)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Generally, [3, 3] sigmatropic reactions of 1, 5-diences are called as cope reactions. When the diene is having the oxygen at C3 or C4 position the sigmatropic reaction is called as oxy cope reaction. Notably, when the alkoxide fragment is involved it is referred as anionic oxy cope reaction. Moreover, the enhanced increase in rate of sigmatropic reaction and the decreased in the reaction temperature is observed as compared to parent alcohols.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 28, Problem 28.33AP

Interpretation Introduction

(a)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved. In [4+2] cycloaddition one component is having four electrons and other component is having two electrons.

Interpretation Introduction

(b)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Sigmatropic reaction can be described as the migration of allylic sigma bond at one end of the π-electron system to the other end of the π-electron system as an uncatalyzed intramolecular reaction. In some cases, Lewis acid catalysts can also be applied. Though, the position of π-bond is changed in Sigmatropic reaction, the total number of π-bonds remain unchanged. The sigma bond can be cleaved at the middle or at the end of the π-system. The formation of sigma bond at 3, 3-position of a 1, 5-diene is called as cope rearrangement.

Interpretation Introduction

(c)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved.

Interpretation Introduction

(d)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Generally, [3, 3] sigmatropic reactions of 1, 5-diences are called as cope reactions. When the diene is having the oxygen at C3 or C4 position the sigmatropic reaction is called as oxy cope reaction. Notably, when the alkoxide fragment is involved it is referred as anionic oxy cope reaction. Moreover, the enhanced increase in rate of sigmatropic reaction and the decreased in the reaction temperature is observed as compared to parent alcohols.

Answer 6

Chapter 28, Problem 28.33AP

Interpretation Introduction

(a)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved. In [4+2] cycloaddition one component is having four electrons and other component is having two electrons.

Answer 7

Chapter 28, Problem 28.33AP

Interpretation Introduction

(a)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved. In [4+2] cycloaddition one component is having four electrons and other component is having two electrons.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Sigmatropic reaction can be described as the migration of allylic sigma bond at one end of the π-electron system to the other end of the π-electron system as an uncatalyzed intramolecular reaction. In some cases, Lewis acid catalysts can also be applied. Though, the position of π-bond is changed in Sigmatropic reaction, the total number of π-bonds remain unchanged. The sigma bond can be cleaved at the middle or at the end of the π-system. The formation of sigma bond at 3, 3-position of a 1, 5-diene is called as cope rearrangement.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Sigmatropic reaction can be described as the migration of allylic sigma bond at one end of the π-electron system to the other end of the π-electron system as an uncatalyzed intramolecular reaction. In some cases, Lewis acid catalysts can also be applied. Though, the position of π-bond is changed in Sigmatropic reaction, the total number of π-bonds remain unchanged. The sigma bond can be cleaved at the middle or at the end of the π-system. The formation of sigma bond at 3, 3-position of a 1, 5-diene is called as cope rearrangement.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Cycloaddition reaction can be referred as a reaction of two different π-electron systems to form a ring product. Notably, in this reaction two new sigma bonds are formed in product with the disappearance of two fewer π-bonds. In other words, cyclo addition reaction can be best described as the reaction of number of electrons involved.

Answer 12

Interpretation Introduction

(d)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Generally, [3, 3] sigmatropic reactions of 1, 5-diences are called as cope reactions. When the diene is having the oxygen at C3 or C4 position the sigmatropic reaction is called as oxy cope reaction. Notably, when the alkoxide fragment is involved it is referred as anionic oxy cope reaction. Moreover, the enhanced increase in rate of sigmatropic reaction and the decreased in the reaction temperature is observed as compared to parent alcohols.

Answer 13

Interpretation Introduction

(d)

Interpretation:

The following reactions by giving the major organic product(s), including stereochemistry is to be completed.

Concept introduction:

Generally, [3, 3] sigmatropic reactions of 1, 5-diences are called as cope reactions. When the diene is having the oxygen at C3 or C4 position the sigmatropic reaction is called as oxy cope reaction. Notably, when the alkoxide fragment is involved it is referred as anionic oxy cope reaction. Moreover, the enhanced increase in rate of sigmatropic reaction and the decreased in the reaction temperature is observed as compared to parent alcohols.

Answer 14

Expert Solution & Answer

Answer 15

Expert Solution & Answer

Answer 16

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 17

Ch. 28 - Prob. 28.1P Ch. 28 - Prob. 28.2P Ch. 28 - Prob. 28.3P Ch. 28 - Prob. 28.4P Ch. 28 - Prob. 28.5P Ch. 28 - Prob. 28.6P Ch. 28 - Prob. 28.7P Ch. 28 - Prob. 28.8P Ch. 28 - Prob. 28.9P Ch. 28 - Prob. 28.10P

Solution Summary: The author explains cycloaddition reaction as a reaction of two different -electron systems to form ring product.

Concept explainers

Videos

Want to see the full answer?

Chapter 28 Solutions