(a) Interpretation: The reason for the observation that Claisen and Dieckmann condensation reaction requires one full equivalent of base is to be stated. Concept introduction: In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β -diketone compound in the presence of a base. The Dieckmann condensation reaction is an intramolecular condensation reaction of diesters with base result in the formation of β ketoester.

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Answer 1

Question

Chapter 22, Problem 22.79AP

Interpretation Introduction

(a)

Interpretation:

The reason for the observation that Claisen and Dieckmann condensation reaction requires one full equivalent of base is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The Dieckmann condensation reaction is an intramolecular condensation reaction of diesters with base result in the formation of β ketoester.

Interpretation Introduction

(b)

Interpretation:

The reason for the observation that phenylacetate does not undergo Claisen condensation with one equivalent of sodium phenoxide whereas ethyl acetate readily undergoes Claisen condensation with one equivalent of sodium ethoxide is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The compound β ketoester is comparatively less stable than esters compound.

Interpretation Introduction

(c)

Interpretation:

The reason for the observation that aldol condensation is catalyzed by acid, but Claisen condensation not catalyze is to be explained.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. Aldol condensation is a reaction of α-carbonyl compound in the presence of base or acid which result in the formation of aldol product.

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Answer 2

Question

Chapter 22, Problem 22.79AP

Interpretation Introduction

(a)

Interpretation:

The reason for the observation that Claisen and Dieckmann condensation reaction requires one full equivalent of base is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The Dieckmann condensation reaction is an intramolecular condensation reaction of diesters with base result in the formation of β ketoester.

Interpretation Introduction

(b)

Interpretation:

The reason for the observation that phenylacetate does not undergo Claisen condensation with one equivalent of sodium phenoxide whereas ethyl acetate readily undergoes Claisen condensation with one equivalent of sodium ethoxide is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The compound β ketoester is comparatively less stable than esters compound.

Interpretation Introduction

(c)

Interpretation:

The reason for the observation that aldol condensation is catalyzed by acid, but Claisen condensation not catalyze is to be explained.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. Aldol condensation is a reaction of α-carbonyl compound in the presence of base or acid which result in the formation of aldol product.

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Answer 3

Question

Chapter 22, Problem 22.79AP

Interpretation Introduction

(a)

Interpretation:

The reason for the observation that Claisen and Dieckmann condensation reaction requires one full equivalent of base is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The Dieckmann condensation reaction is an intramolecular condensation reaction of diesters with base result in the formation of β ketoester.

Interpretation Introduction

(b)

Interpretation:

The reason for the observation that phenylacetate does not undergo Claisen condensation with one equivalent of sodium phenoxide whereas ethyl acetate readily undergoes Claisen condensation with one equivalent of sodium ethoxide is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The compound β ketoester is comparatively less stable than esters compound.

Interpretation Introduction

(c)

Interpretation:

The reason for the observation that aldol condensation is catalyzed by acid, but Claisen condensation not catalyze is to be explained.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. Aldol condensation is a reaction of α-carbonyl compound in the presence of base or acid which result in the formation of aldol product.

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Answer 4

Question

Chapter 22, Problem 22.79AP

Interpretation Introduction

(a)

Interpretation:

The reason for the observation that Claisen and Dieckmann condensation reaction requires one full equivalent of base is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The Dieckmann condensation reaction is an intramolecular condensation reaction of diesters with base result in the formation of β ketoester.

Interpretation Introduction

(b)

Interpretation:

The reason for the observation that phenylacetate does not undergo Claisen condensation with one equivalent of sodium phenoxide whereas ethyl acetate readily undergoes Claisen condensation with one equivalent of sodium ethoxide is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The compound β ketoester is comparatively less stable than esters compound.

Interpretation Introduction

(c)

Interpretation:

The reason for the observation that aldol condensation is catalyzed by acid, but Claisen condensation not catalyze is to be explained.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. Aldol condensation is a reaction of α-carbonyl compound in the presence of base or acid which result in the formation of aldol product.

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Answer 5

Chapter 22, Problem 22.79AP

Interpretation Introduction

(a)

Interpretation:

The reason for the observation that Claisen and Dieckmann condensation reaction requires one full equivalent of base is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The Dieckmann condensation reaction is an intramolecular condensation reaction of diesters with base result in the formation of β ketoester.

Interpretation Introduction

(b)

Interpretation:

The reason for the observation that phenylacetate does not undergo Claisen condensation with one equivalent of sodium phenoxide whereas ethyl acetate readily undergoes Claisen condensation with one equivalent of sodium ethoxide is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The compound β ketoester is comparatively less stable than esters compound.

Interpretation Introduction

(c)

Interpretation:

The reason for the observation that aldol condensation is catalyzed by acid, but Claisen condensation not catalyze is to be explained.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. Aldol condensation is a reaction of α-carbonyl compound in the presence of base or acid which result in the formation of aldol product.

Answer 6

Chapter 22, Problem 22.79AP

Interpretation Introduction

(a)

Interpretation:

The reason for the observation that Claisen and Dieckmann condensation reaction requires one full equivalent of base is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The Dieckmann condensation reaction is an intramolecular condensation reaction of diesters with base result in the formation of β ketoester.

Answer 7

Chapter 22, Problem 22.79AP

Interpretation Introduction

(a)

Interpretation:

The reason for the observation that Claisen and Dieckmann condensation reaction requires one full equivalent of base is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The Dieckmann condensation reaction is an intramolecular condensation reaction of diesters with base result in the formation of β ketoester.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The reason for the observation that phenylacetate does not undergo Claisen condensation with one equivalent of sodium phenoxide whereas ethyl acetate readily undergoes Claisen condensation with one equivalent of sodium ethoxide is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The compound β ketoester is comparatively less stable than esters compound.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The reason for the observation that phenylacetate does not undergo Claisen condensation with one equivalent of sodium phenoxide whereas ethyl acetate readily undergoes Claisen condensation with one equivalent of sodium ethoxide is to be stated.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. The compound β ketoester is comparatively less stable than esters compound.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The reason for the observation that aldol condensation is catalyzed by acid, but Claisen condensation not catalyze is to be explained.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. Aldol condensation is a reaction of α-carbonyl compound in the presence of base or acid which result in the formation of aldol product.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The reason for the observation that aldol condensation is catalyzed by acid, but Claisen condensation not catalyze is to be explained.

Concept introduction:

In Claisen condensation reaction two esters or one ester and a carbonyl compound react together to form β ketoester and β-diketone compound in the presence of a base. Aldol condensation is a reaction of α-carbonyl compound in the presence of base or acid which result in the formation of aldol product.

Answer 12

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Answer 14

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Answer 15

Ch. 22 - Prob. 22.1P Ch. 22 - Prob. 22.2P Ch. 22 - Prob. 22.3P Ch. 22 - Prob. 22.4P Ch. 22 - Prob. 22.5P Ch. 22 - Prob. 22.6P Ch. 22 - Prob. 22.7P Ch. 22 - Prob. 22.8P Ch. 22 - Prob. 22.9P Ch. 22 - Prob. 22.10P

Solution Summary: The author explains that Claisen and Dieckmann condensation reaction requires one full equivalent of base.

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