Heptafulvalene undergoes a thermal reaction with tetracyanoethylene (TCNE) to give the adduct shown in Fig. P28.36.The stereochemistry of this adduct is to be explained. 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.

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Chapter 28, Problem 28.36AP

Interpretation Introduction

Interpretation:

Heptafulvalene undergoes a thermal reaction with tetracyanoethylene (TCNE) to give the adduct shown in Fig. P28.36.The stereochemistry of this adduct is to be explained.

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.

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Draw the two products of the reaction. H₂C. CH₂ H :0: CH3 CH₂ +1

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Answer 2

Question

Chapter 28, Problem 28.36AP

Interpretation Introduction

Interpretation:

Heptafulvalene undergoes a thermal reaction with tetracyanoethylene (TCNE) to give the adduct shown in Fig. P28.36.The stereochemistry of this adduct is to be explained.

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.

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Answer 3

Question

Chapter 28, Problem 28.36AP

Interpretation Introduction

Interpretation:

Heptafulvalene undergoes a thermal reaction with tetracyanoethylene (TCNE) to give the adduct shown in Fig. P28.36.The stereochemistry of this adduct is to be explained.

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.

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Answer 4

Question

Chapter 28, Problem 28.36AP

Interpretation Introduction

Interpretation:

Heptafulvalene undergoes a thermal reaction with tetracyanoethylene (TCNE) to give the adduct shown in Fig. P28.36.The stereochemistry of this adduct is to be explained.

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.

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Answer 5

Chapter 28, Problem 28.36AP

Interpretation Introduction

Interpretation:

Heptafulvalene undergoes a thermal reaction with tetracyanoethylene (TCNE) to give the adduct shown in Fig. P28.36.The stereochemistry of this adduct is to be explained.

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 6

Chapter 28, Problem 28.36AP

Interpretation Introduction

Interpretation:

Heptafulvalene undergoes a thermal reaction with tetracyanoethylene (TCNE) to give the adduct shown in Fig. P28.36.The stereochemistry of this adduct is to be explained.

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 28.36AP

Interpretation Introduction

Interpretation:

Heptafulvalene undergoes a thermal reaction with tetracyanoethylene (TCNE) to give the adduct shown in Fig. P28.36.The stereochemistry of this adduct is to be explained.

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

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Answer 11

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 the stereochemistry of Heptafulvalene, which undergoes a thermal reaction with tetracyanoethylene (TCNE).

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Chapter 28 Solutions