(a) Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted. Concept introduction: Claisen rearrangement is a thermal [ 3 , 3 ] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ -carbonyl compound. Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

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Answer 1

Question

Chapter 25.5, Problem 22P

Interpretation Introduction

(a)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Interpretation Introduction

(b)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Interpretation Introduction

(c)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

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Answer 2

Question

Chapter 25.5, Problem 22P

Interpretation Introduction

(a)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Interpretation Introduction

(b)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Interpretation Introduction

(c)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

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Answer 3

Question

Chapter 25.5, Problem 22P

Interpretation Introduction

(a)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Interpretation Introduction

(b)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Interpretation Introduction

(c)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

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Answer 4

Question

Chapter 25.5, Problem 22P

Interpretation Introduction

(a)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Interpretation Introduction

(b)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Interpretation Introduction

(c)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

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Answer 5

Chapter 25.5, Problem 22P

Interpretation Introduction

(a)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Interpretation Introduction

(b)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Interpretation Introduction

(c)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Answer 6

Chapter 25.5, Problem 22P

Interpretation Introduction

(a)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Answer 7

Chapter 25.5, Problem 22P

Interpretation Introduction

(a)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Answer 8

Interpretation Introduction

(b)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Answer 9

Interpretation Introduction

(b)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Answer 10

Interpretation Introduction

(c)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Answer 11

Interpretation Introduction

(c)

Interpretation: The product formed from Claisen rearrangement of given starting material is to be predicted.

Concept introduction: Claisen rearrangement is a thermal [3,3] sigmatropic rearrangement. This rearrangement takes place in allyl vinyl ether to form γ,δ-carbonyl compound.

Sigmatropic rearrangements are pericyclic reactions which takes place by concerted mechanism. In these rearrangements migration of sigma bond takes place.

Answer 12

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Answer 14

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Answer 15

Ch. 25.1 - Prob. 1P Ch. 25.2 - Problem 27.2 For each molecular orbital in Figure...Ch. 25.2 - Problem 27.3 (a) Using Figure 27.2 as a guide,...Ch. 25.3 - Prob. 4P Ch. 25.3 - Prob. 5P Ch. 25.3 - Prob. 6P Ch. 25.3 - Prob. 7P Ch. 25.3 - Prob. 8P Ch. 25.3 - Prob. 9P Ch. 25.3 - Problem 27.11 What product would be formed by the...

Solution Summary: The author explains Claisen's sigmatropic rearrangement, which takes place in allyl vinyl ether to form 2-(cyclohex-2-enyl)acetalde

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Chapter 25 Solutions