The synthesis of acetoacetic ester can be used to prepare 5-phenyl-2,5-pentanedione has to be showed. Concept Introduction: Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

Question

Describe the procedures on how will you prepare an ester.

Answer 1

Question

Chapter 19.6, Problem 19.10P

(a)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 5-phenyl-2,5-pentanedione has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

(b)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 1-cyclopentyl-1-ethanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

(c)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 3-ethyl-2-pentanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

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Describe the procedures on how will you prepare an ester.

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Answer 2

Question

Chapter 19.6, Problem 19.10P

(a)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 5-phenyl-2,5-pentanedione has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

(b)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 1-cyclopentyl-1-ethanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

(c)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 3-ethyl-2-pentanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

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Answer 3

Question

Chapter 19.6, Problem 19.10P

(a)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 5-phenyl-2,5-pentanedione has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

(b)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 1-cyclopentyl-1-ethanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

(c)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 3-ethyl-2-pentanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

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Answer 4

Question

Chapter 19.6, Problem 19.10P

(a)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 5-phenyl-2,5-pentanedione has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

(b)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 1-cyclopentyl-1-ethanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

(c)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 3-ethyl-2-pentanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

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Answer 5

Chapter 19.6, Problem 19.10P

(a)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 5-phenyl-2,5-pentanedione has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

(b)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 1-cyclopentyl-1-ethanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

(c)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 3-ethyl-2-pentanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

Answer 6

Chapter 19.6, Problem 19.10P

(a)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 5-phenyl-2,5-pentanedione has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

Answer 7

Chapter 19.6, Problem 19.10P

(a)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 5-phenyl-2,5-pentanedione has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 1-cyclopentyl-1-ethanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 1-cyclopentyl-1-ethanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

Answer 10

(c)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 3-ethyl-2-pentanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

Answer 11

(c)

Interpretation Introduction

Interpretation:

The synthesis of acetoacetic ester can be used to prepare 3-ethyl-2-pentanone has to be showed.

Concept Introduction:

Acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds. It is because of the presence of acidic α-hydrogens between two carbonyl groups, the nucleophilicity of the enolate anion formed by the loss of α-hydrogen and the ability of the product to undergo decarboxylation after hydrolysis of ester.

Answer 12

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Answer 23

Ch. 19.2 - Prob. 19.1P Ch. 19.2 - Prob. 19.2P Ch. 19.2 - Prob. 19.3P Ch. 19.3 - Prob. 19.4P Ch. 19.3 - Prob. 19.5P Ch. 19.3 - Prob. 19.6P Ch. 19.5 - Prob. 19.7P Ch. 19.5 - Prob. 19.8P Ch. 19.5 - Prob. 19.9P Ch. 19.6 - Prob. 19.10P

Solution Summary: The author explains that acetoacetic ester is a versatile starting material for the formation of new carbon-carbon bonds.

Chapter 19 Solutions