(a) Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown. Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α − carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester . The crossed Claisen condensation always takes place between the two different carbonyl compounds.

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Answer 1

Question

Chapter 22, Problem 41P

Interpretation Introduction

(a)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(b)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(c)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(d)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

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Answer 2

Question

Chapter 22, Problem 41P

Interpretation Introduction

(a)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(b)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(c)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(d)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

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Answer 3

Question

Chapter 22, Problem 41P

Interpretation Introduction

(a)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(b)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(c)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(d)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

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Answer 4

Question

Chapter 22, Problem 41P

Interpretation Introduction

(a)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(b)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(c)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(d)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

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Answer 5

Chapter 22, Problem 41P

Interpretation Introduction

(a)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(b)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(c)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Interpretation Introduction

(d)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Answer 6

Chapter 22, Problem 41P

Interpretation Introduction

(a)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Answer 7

Chapter 22, Problem 41P

Interpretation Introduction

(a)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Answer 8

Interpretation Introduction

(b)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Answer 9

Interpretation Introduction

(b)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Answer 10

Interpretation Introduction

(c)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Answer 11

Interpretation Introduction

(c)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Answer 12

Interpretation Introduction

(d)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Answer 13

Interpretation Introduction

(d)

Interpretation: The starting materials that are needed to synthesize the given compound by a crossed Claisen reaction are to be shown.

Concept introduction: In crossed claisen condensation reaction, the base abstracts the acidic proton from α− carbon atom of an ester to form enolate. This enolate reacts with carbonyl compound of other ester that leads to the formation of a β-keto ester. The crossed Claisen condensation always takes place between the two different carbonyl compounds.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 22.1 - Prob. 1P Ch. 22.1 - Prob. 2P Ch. 22.1 - Problem 24.3 What unsaturated carbonyl compound is...Ch. 22.1 - Prob. 4P Ch. 22.1 - Prob. 5P Ch. 22.2 - Prob. 6P Ch. 22.2 - Problem 24.7 Draw the products formed in each...Ch. 22.4 - Prob. 15P Ch. 22.4 - Prob. 16P Ch. 22.5 - Problem 24.16 What ester is formed when each...

Solution Summary: The author explains the starting materials needed to synthesize the given compound by a crossed Claisen reaction.

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Chapter 22 Solutions