The given following esters which cannot undergo claisen condensation has to be predicted. Concept introduction: When two molecules of an ester undergo condensation, then it is called claisen condensation. Like in aldol reaction, in claisen condensation one molecule is a nucleophile and the other molecule is an electrophile. A claisen condensation reaction is a reversible reaction and occurs in the presence of a strong base. The first step of claisen condensation is the removal of a proton from alpha carbon by a base and then the addition of enolate ion formed to the second ester molecule forming a β-ketoester.

Question

Provide the proper IUPAC name only for the following compound. Dashes, commas, and spaces must be used correctly, but do not use italics in Canvas.

Answer 1

Question

Chapter 19.3, Problem 19.4P

Interpretation Introduction

Interpretation: The given following esters which cannot undergo claisen condensation has to be predicted.

Concept introduction:

When two molecules of an ester undergo condensation, then it is called claisen condensation. Like in aldol reaction, in claisen condensation one molecule is a nucleophile and the other molecule is an electrophile.

A claisen condensation reaction is a reversible reaction and occurs in the presence of a strong base.

The first step of claisen condensation is the removal of a proton from alpha carbon by a base and then the addition of enolate ion formed to the second ester molecule forming a β-ketoester.

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Answer 2

Question

Chapter 19.3, Problem 19.4P

Interpretation Introduction

Interpretation: The given following esters which cannot undergo claisen condensation has to be predicted.

Concept introduction:

When two molecules of an ester undergo condensation, then it is called claisen condensation. Like in aldol reaction, in claisen condensation one molecule is a nucleophile and the other molecule is an electrophile.

A claisen condensation reaction is a reversible reaction and occurs in the presence of a strong base.

The first step of claisen condensation is the removal of a proton from alpha carbon by a base and then the addition of enolate ion formed to the second ester molecule forming a β-ketoester.

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Answer 3

Question

Chapter 19.3, Problem 19.4P

Interpretation Introduction

Interpretation: The given following esters which cannot undergo claisen condensation has to be predicted.

Concept introduction:

When two molecules of an ester undergo condensation, then it is called claisen condensation. Like in aldol reaction, in claisen condensation one molecule is a nucleophile and the other molecule is an electrophile.

A claisen condensation reaction is a reversible reaction and occurs in the presence of a strong base.

The first step of claisen condensation is the removal of a proton from alpha carbon by a base and then the addition of enolate ion formed to the second ester molecule forming a β-ketoester.

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Answer 4

Question

Chapter 19.3, Problem 19.4P

Interpretation Introduction

Interpretation: The given following esters which cannot undergo claisen condensation has to be predicted.

Concept introduction:

When two molecules of an ester undergo condensation, then it is called claisen condensation. Like in aldol reaction, in claisen condensation one molecule is a nucleophile and the other molecule is an electrophile.

A claisen condensation reaction is a reversible reaction and occurs in the presence of a strong base.

The first step of claisen condensation is the removal of a proton from alpha carbon by a base and then the addition of enolate ion formed to the second ester molecule forming a β-ketoester.

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Answer 5

Chapter 19.3, Problem 19.4P

Interpretation Introduction

Interpretation: The given following esters which cannot undergo claisen condensation has to be predicted.

Concept introduction:

When two molecules of an ester undergo condensation, then it is called claisen condensation. Like in aldol reaction, in claisen condensation one molecule is a nucleophile and the other molecule is an electrophile.

A claisen condensation reaction is a reversible reaction and occurs in the presence of a strong base.

The first step of claisen condensation is the removal of a proton from alpha carbon by a base and then the addition of enolate ion formed to the second ester molecule forming a β-ketoester.

Answer 6

Chapter 19.3, Problem 19.4P

Interpretation Introduction

Interpretation: The given following esters which cannot undergo claisen condensation has to be predicted.

Concept introduction:

When two molecules of an ester undergo condensation, then it is called claisen condensation. Like in aldol reaction, in claisen condensation one molecule is a nucleophile and the other molecule is an electrophile.

A claisen condensation reaction is a reversible reaction and occurs in the presence of a strong base.

The first step of claisen condensation is the removal of a proton from alpha carbon by a base and then the addition of enolate ion formed to the second ester molecule forming a β-ketoester.

Answer 7

Chapter 19.3, Problem 19.4P

Interpretation Introduction

Interpretation: The given following esters which cannot undergo claisen condensation has to be predicted.

Concept introduction:

When two molecules of an ester undergo condensation, then it is called claisen condensation. Like in aldol reaction, in claisen condensation one molecule is a nucleophile and the other molecule is an electrophile.

A claisen condensation reaction is a reversible reaction and occurs in the presence of a strong base.

The first step of claisen condensation is the removal of a proton from alpha carbon by a base and then the addition of enolate ion formed to the second ester molecule forming a β-ketoester.

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Answer 19

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 claisen condensation occurs when two molecules of an ester undergo condensation in the presence of a strong base.

Chapter 19 Solutions