a) CH 3 CO 2 Et + CH 3 CH 2 CO 2 Et Interpretation: The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction are to be given. Concept introduction: The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule. To give: The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction.

Question

Indicate how H2O2 intervenes in the synthesis of K4[Co2(C2O4)4(OH)2]. Write the reactions.

Answer 1

Question

Chapter 23.SE, Problem 58AP

Interpretation Introduction

a) CH₃CO₂Et + CH₃CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction.

Interpretation Introduction

b) C₆H₅CO₂Et + C₆H₅CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structure of the possible product, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction.

Interpretation Introduction

c) EtOCO₂Et + cyclohexanone

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction.

Interpretation Introduction

d) C₆H₅CHO + CH₃CH₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylformate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylacetate undergo Claisen condensation reaction.

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Answer 2

Question

Chapter 23.SE, Problem 58AP

Interpretation Introduction

a) CH₃CO₂Et + CH₃CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction.

Interpretation Introduction

b) C₆H₅CO₂Et + C₆H₅CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structure of the possible product, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction.

Interpretation Introduction

c) EtOCO₂Et + cyclohexanone

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction.

Interpretation Introduction

d) C₆H₅CHO + CH₃CH₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylformate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylacetate undergo Claisen condensation reaction.

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Answer 3

Question

Chapter 23.SE, Problem 58AP

Interpretation Introduction

a) CH₃CO₂Et + CH₃CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction.

Interpretation Introduction

b) C₆H₅CO₂Et + C₆H₅CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structure of the possible product, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction.

Interpretation Introduction

c) EtOCO₂Et + cyclohexanone

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction.

Interpretation Introduction

d) C₆H₅CHO + CH₃CH₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylformate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylacetate undergo Claisen condensation reaction.

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Answer 4

Question

Chapter 23.SE, Problem 58AP

Interpretation Introduction

a) CH₃CO₂Et + CH₃CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction.

Interpretation Introduction

b) C₆H₅CO₂Et + C₆H₅CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structure of the possible product, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction.

Interpretation Introduction

c) EtOCO₂Et + cyclohexanone

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction.

Interpretation Introduction

d) C₆H₅CHO + CH₃CH₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylformate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylacetate undergo Claisen condensation reaction.

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Answer 5

Chapter 23.SE, Problem 58AP

Interpretation Introduction

a) CH₃CO₂Et + CH₃CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction.

Interpretation Introduction

b) C₆H₅CO₂Et + C₆H₅CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structure of the possible product, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction.

Interpretation Introduction

c) EtOCO₂Et + cyclohexanone

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction.

Interpretation Introduction

d) C₆H₅CHO + CH₃CH₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylformate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylacetate undergo Claisen condensation reaction.

Answer 6

Chapter 23.SE, Problem 58AP

Interpretation Introduction

a) CH₃CO₂Et + CH₃CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction.

Answer 7

Chapter 23.SE, Problem 58AP

Interpretation Introduction

a) CH₃CO₂Et + CH₃CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethylacetate and ethyl propionate undergo Claisen condensation reaction.

Answer 8

Interpretation Introduction

b) C₆H₅CO₂Et + C₆H₅CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structure of the possible product, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction.

Answer 9

Interpretation Introduction

b) C₆H₅CO₂Et + C₆H₅CH₂CO₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structure of the possible product, indicating predominant product if any, when ethylbenzoyate and ethylphenylacetate undergo Claisen condensation reaction.

Answer 10

Interpretation Introduction

c) EtOCO₂Et + cyclohexanone

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction.

Answer 11

Interpretation Introduction

c) EtOCO₂Et + cyclohexanone

Interpretation:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when ethoxyethylformate and cyclohexanone undergo Claisen condensation reaction.

Answer 12

Interpretation Introduction

d) C₆H₅CHO + CH₃CH₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylformate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylacetate undergo Claisen condensation reaction.

Answer 13

Interpretation Introduction

d) C₆H₅CHO + CH₃CH₂Et

Interpretation:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylformate undergo Claisen condensation reaction are to be given.

Concept introduction:

The Claisen condensation reaction involves a reversible condensation between two molecules of an ester that has α-hydrogen atoms in the presence of one equivalent of a base like sodium ethoxide. The product obtained is a β-keto ester. In the reaction an alcohol molecule is eliminated and the product has an acyl group of one of the reactant molecule attached to the α-carbon of the second molecule.

To give:

The structures of the possible products, indicating predominant product if any, when benzaldehyde and ethylacetate undergo Claisen condensation reaction.

Answer 14

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Ch. 23.1 - Prob. 1P Ch. 23.1 - Prob. 2P Ch. 23.3 - Prob. 3P Ch. 23.3 - Prob. 4P Ch. 23.4 - Prob. 5P Ch. 23.4 - 1-Butanol is prepared commercially by a route that...Ch. 23.4 - Prob. 7P Ch. 23.5 - Prob. 8P Ch. 23.6 - Prob. 9P Ch. 23.6 - What product would you Expect to obtain from base...

Solution Summary: The author explains the Claisen condensation reaction, which involves a reversible condensation between two molecules of an ester that has -hydrogen atoms.

Chapter 23 Solutions