For each of the given reactions, the product should be determined. Concept introduction: Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes ( π-system ) , in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic . The mechanism of rearrangement is represented by using curved arrows . Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends. Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

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Answer 1

Question

Chapter 16, Problem 56PP

(a)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

(b)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

(c)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

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Answer 2

Question

Chapter 16, Problem 56PP

(a)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

(b)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

(c)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

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Answer 3

Question

Chapter 16, Problem 56PP

(a)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

(b)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

(c)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

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Answer 4

Question

Chapter 16, Problem 56PP

(a)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

(b)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

(c)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

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Answer 5

Chapter 16, Problem 56PP

(a)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

(b)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

(c)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

Answer 6

Chapter 16, Problem 56PP

(a)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

Answer 7

Chapter 16, Problem 56PP

(a)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

Answer 8

(b)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

Answer 9

(b)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

Answer 10

(c)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

Answer 11

(c)

Interpretation Introduction

Interpretation:

For each of the given reactions, the product should be determined.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic. The mechanism of rearrangement is represented by using curved arrows.

Cope Rearrangement is a [3,3] sigamatropic rearrangement, in which the π-system having 6 carbons and double bonds are situated at both ends.

Claisen Rearrangement is a [3,3] sigamatropic rearrangement of allylic vinylic/arylic ethers, in which the ethers will rearranged to carbonyl compound.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 16.1 - Prob. 1CC Ch. 16.2 - Prob. 2CC Ch. 16.2 - Prob. 3CC Ch. 16.2 - Prob. 4CC Ch. 16.3 - Draw an energy diagram showing the relative energy...Ch. 16.4 - Prob. 1LTS Ch. 16.4 - Prob. 6PTS Ch. 16.4 - Prob. 7PTS Ch. 16.5 - Prob. 2LTS Ch. 16.5 - Predict the products for each of the following...

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