(a) Interpretation: The stereochemistry of the products of given reaction is to be shown. Concept introduction: Diels-Alder reaction is a reaction between a conjugated diene and an alkene . It is also known as 1 , 4 − addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile. If the products with alkene substituents R are cis to outer diene substituents R ° , then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R ° , then this product said to have exo stereochemistry.

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Answer 1

Question

Chapter 15, Problem 15.21P

Interpretation Introduction

(a)

Interpretation:

The stereochemistry of the products of given reaction is to be shown.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

Interpretation Introduction

(b)

Interpretation:

The diagrams of the given reactions are to be drawn that shows the approach of diene and dienophile.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

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Answer 2

Question

Chapter 15, Problem 15.21P

Interpretation Introduction

(a)

Interpretation:

The stereochemistry of the products of given reaction is to be shown.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

Interpretation Introduction

(b)

Interpretation:

The diagrams of the given reactions are to be drawn that shows the approach of diene and dienophile.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

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Answer 3

Question

Chapter 15, Problem 15.21P

Interpretation Introduction

(a)

Interpretation:

The stereochemistry of the products of given reaction is to be shown.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

Interpretation Introduction

(b)

Interpretation:

The diagrams of the given reactions are to be drawn that shows the approach of diene and dienophile.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

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Answer 4

Question

Chapter 15, Problem 15.21P

Interpretation Introduction

(a)

Interpretation:

The stereochemistry of the products of given reaction is to be shown.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

Interpretation Introduction

(b)

Interpretation:

The diagrams of the given reactions are to be drawn that shows the approach of diene and dienophile.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

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Answer 5

Chapter 15, Problem 15.21P

Interpretation Introduction

(a)

Interpretation:

The stereochemistry of the products of given reaction is to be shown.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

Interpretation Introduction

(b)

Interpretation:

The diagrams of the given reactions are to be drawn that shows the approach of diene and dienophile.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

Answer 6

Chapter 15, Problem 15.21P

Interpretation Introduction

(a)

Interpretation:

The stereochemistry of the products of given reaction is to be shown.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

Answer 7

Chapter 15, Problem 15.21P

Interpretation Introduction

(a)

Interpretation:

The stereochemistry of the products of given reaction is to be shown.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The diagrams of the given reactions are to be drawn that shows the approach of diene and dienophile.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The diagrams of the given reactions are to be drawn that shows the approach of diene and dienophile.

Concept introduction:

Diels-Alder reaction is a reaction between a conjugated diene and an alkene. It is also known as 1,4− addition reaction. In this reaction, conjugated diene indicates a diene and alkene indicates dienophile.

If the products with alkene substituents R are cis to outer diene substituents R°, then this product said to have endo stereochemistry. If the product with alkene substituents R are trans to outer diene substituents, R°, then this product said to have exo stereochemistry.

Answer 10

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Answer 12

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Answer 13

Ch. 15 - Prob. 15.1P Ch. 15 - Prob. 15.2P Ch. 15 - Prob. 15.3P Ch. 15 - Prob. 15.4P Ch. 15 - Prob. 15.5P Ch. 15 - Prob. 15.6P Ch. 15 - Prob. 15.7P Ch. 15 - Prob. 15.8P Ch. 15 - Prob. 15.9P Ch. 15 - Prob. 15.10P

Solution Summary: The author explains that Diels-Alder reaction is a reaction between conjugated diene and an alkene. It is also known as 1,4- addition reaction.

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