The stereochemistry, suprafacial or antarafacial, expected for the photochemical [1,5] sigmatropic rearrangement reaction is to be stated. Concept introduction: Sigmatropic rearrangements involve the migration of a σ bond present at the end or in the middle of the system across the π electron system from one position to another. They are represented by [m,n] where m and n represents the number of atoms between the bond being broken and the bond being formed in two directions. If even number of electron pair is involved then thermal reaction occur through antarafacial pathway and photochemical reactions occur through suprafacial pathway. If odd number of electron pair is involved then thermal reaction occur through suprafacial pathway and photochemical reactions occur through antarafacial pathway.

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Answer 1

Question

Chapter 30.SE, Problem 33AP

Interpretation Introduction

Interpretation:

The stereochemistry, suprafacial or antarafacial, expected for the photochemical [1,5] sigmatropic rearrangement reaction is to be stated.

Concept introduction:

Sigmatropic rearrangements involve the migration of a σ bond present at the end or in the middle of the system across the π electron system from one position to another. They are represented by [m,n] where m and n represents the number of atoms between the bond being broken and the bond being formed in two directions.

If even number of electron pair is involved then thermal reaction occur through antarafacial pathway and photochemical reactions occur through suprafacial pathway.

If odd number of electron pair is involved then thermal reaction occur through suprafacial pathway and photochemical reactions occur through antarafacial pathway.

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Answer 2

Question

Chapter 30.SE, Problem 33AP

Interpretation Introduction

Interpretation:

The stereochemistry, suprafacial or antarafacial, expected for the photochemical [1,5] sigmatropic rearrangement reaction is to be stated.

Concept introduction:

Sigmatropic rearrangements involve the migration of a σ bond present at the end or in the middle of the system across the π electron system from one position to another. They are represented by [m,n] where m and n represents the number of atoms between the bond being broken and the bond being formed in two directions.

If even number of electron pair is involved then thermal reaction occur through antarafacial pathway and photochemical reactions occur through suprafacial pathway.

If odd number of electron pair is involved then thermal reaction occur through suprafacial pathway and photochemical reactions occur through antarafacial pathway.

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Answer 3

Question

Chapter 30.SE, Problem 33AP

Interpretation Introduction

Interpretation:

The stereochemistry, suprafacial or antarafacial, expected for the photochemical [1,5] sigmatropic rearrangement reaction is to be stated.

Concept introduction:

Sigmatropic rearrangements involve the migration of a σ bond present at the end or in the middle of the system across the π electron system from one position to another. They are represented by [m,n] where m and n represents the number of atoms between the bond being broken and the bond being formed in two directions.

If even number of electron pair is involved then thermal reaction occur through antarafacial pathway and photochemical reactions occur through suprafacial pathway.

If odd number of electron pair is involved then thermal reaction occur through suprafacial pathway and photochemical reactions occur through antarafacial pathway.

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Answer 4

Question

Chapter 30.SE, Problem 33AP

Interpretation Introduction

Interpretation:

The stereochemistry, suprafacial or antarafacial, expected for the photochemical [1,5] sigmatropic rearrangement reaction is to be stated.

Concept introduction:

Sigmatropic rearrangements involve the migration of a σ bond present at the end or in the middle of the system across the π electron system from one position to another. They are represented by [m,n] where m and n represents the number of atoms between the bond being broken and the bond being formed in two directions.

If even number of electron pair is involved then thermal reaction occur through antarafacial pathway and photochemical reactions occur through suprafacial pathway.

If odd number of electron pair is involved then thermal reaction occur through suprafacial pathway and photochemical reactions occur through antarafacial pathway.

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Answer 5

Chapter 30.SE, Problem 33AP

Interpretation Introduction

Interpretation:

The stereochemistry, suprafacial or antarafacial, expected for the photochemical [1,5] sigmatropic rearrangement reaction is to be stated.

Concept introduction:

Sigmatropic rearrangements involve the migration of a σ bond present at the end or in the middle of the system across the π electron system from one position to another. They are represented by [m,n] where m and n represents the number of atoms between the bond being broken and the bond being formed in two directions.

If even number of electron pair is involved then thermal reaction occur through antarafacial pathway and photochemical reactions occur through suprafacial pathway.

If odd number of electron pair is involved then thermal reaction occur through suprafacial pathway and photochemical reactions occur through antarafacial pathway.

Answer 6

Chapter 30.SE, Problem 33AP

Interpretation Introduction

Interpretation:

The stereochemistry, suprafacial or antarafacial, expected for the photochemical [1,5] sigmatropic rearrangement reaction is to be stated.

Concept introduction:

Sigmatropic rearrangements involve the migration of a σ bond present at the end or in the middle of the system across the π electron system from one position to another. They are represented by [m,n] where m and n represents the number of atoms between the bond being broken and the bond being formed in two directions.

If even number of electron pair is involved then thermal reaction occur through antarafacial pathway and photochemical reactions occur through suprafacial pathway.

If odd number of electron pair is involved then thermal reaction occur through suprafacial pathway and photochemical reactions occur through antarafacial pathway.

Answer 7

Chapter 30.SE, Problem 33AP

Interpretation Introduction

Interpretation:

The stereochemistry, suprafacial or antarafacial, expected for the photochemical [1,5] sigmatropic rearrangement reaction is to be stated.

Concept introduction:

Sigmatropic rearrangements involve the migration of a σ bond present at the end or in the middle of the system across the π electron system from one position to another. They are represented by [m,n] where m and n represents the number of atoms between the bond being broken and the bond being formed in two directions.

If even number of electron pair is involved then thermal reaction occur through antarafacial pathway and photochemical reactions occur through suprafacial pathway.

If odd number of electron pair is involved then thermal reaction occur through suprafacial pathway and photochemical reactions occur through antarafacial pathway.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 30.1 - Prob. 1P Ch. 30.3 - Prob. 2P Ch. 30.3 - Prob. 3P Ch. 30.4 - Prob. 4P Ch. 30.6 - What stereochemistry would you expect for the...Ch. 30.6 - Prob. 6P Ch. 30.7 - Prob. 7P Ch. 30.8 - Propose a mechanism to account for the fact that...Ch. 30.8 - When a 2, 6-disubstituted allyl phenyl ether is...Ch. 30.9 - Prob. 10P

Solution Summary: The author explains that the stereochemistry, suprafacial or antarafacial, expected for the photochemical sigmatropic rearrangement reaction is to be stated.

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