The stepwise mechanism for the given Robinson annulation is to be drawn. Concept introduction: Robinson annulation is a combination of Michael addition and intramolecular aldol condensation reactions. It takes place between an α,β -unsaturated carbonyl compound and a carbonyl compound. The enolate formation takes place from carbonyl compound which attacks the α,β -unsaturated carbonyl compound to form 1 , 5 -dicarbonyl compound. This compound undergoes intramolecular aldol condensation which leads to the formation of a ring.

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Answer 1

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Chapter 24, Problem 24.56P

Interpretation Introduction

Interpretation: The stepwise mechanism for the given Robinson annulation is to be drawn.

Concept introduction: Robinson annulation is a combination of Michael addition and intramolecular aldol condensation reactions. It takes place between an α,β-unsaturated carbonyl compound and a carbonyl compound. The enolate formation takes place from carbonyl compound which attacks the α,β-unsaturated carbonyl compound to form 1,5-dicarbonyl compound. This compound undergoes intramolecular aldol condensation which leads to the formation of a ring.

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Question

Chapter 24, Problem 24.56P

Interpretation Introduction

Interpretation: The stepwise mechanism for the given Robinson annulation is to be drawn.

Concept introduction: Robinson annulation is a combination of Michael addition and intramolecular aldol condensation reactions. It takes place between an α,β-unsaturated carbonyl compound and a carbonyl compound. The enolate formation takes place from carbonyl compound which attacks the α,β-unsaturated carbonyl compound to form 1,5-dicarbonyl compound. This compound undergoes intramolecular aldol condensation which leads to the formation of a ring.

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Answer 3

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Chapter 24, Problem 24.56P

Interpretation Introduction

Interpretation: The stepwise mechanism for the given Robinson annulation is to be drawn.

Concept introduction: Robinson annulation is a combination of Michael addition and intramolecular aldol condensation reactions. It takes place between an α,β-unsaturated carbonyl compound and a carbonyl compound. The enolate formation takes place from carbonyl compound which attacks the α,β-unsaturated carbonyl compound to form 1,5-dicarbonyl compound. This compound undergoes intramolecular aldol condensation which leads to the formation of a ring.

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Answer 4

Question

Chapter 24, Problem 24.56P

Interpretation Introduction

Interpretation: The stepwise mechanism for the given Robinson annulation is to be drawn.

Concept introduction: Robinson annulation is a combination of Michael addition and intramolecular aldol condensation reactions. It takes place between an α,β-unsaturated carbonyl compound and a carbonyl compound. The enolate formation takes place from carbonyl compound which attacks the α,β-unsaturated carbonyl compound to form 1,5-dicarbonyl compound. This compound undergoes intramolecular aldol condensation which leads to the formation of a ring.

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Answer 5

Chapter 24, Problem 24.56P

Interpretation Introduction

Interpretation: The stepwise mechanism for the given Robinson annulation is to be drawn.

Concept introduction: Robinson annulation is a combination of Michael addition and intramolecular aldol condensation reactions. It takes place between an α,β-unsaturated carbonyl compound and a carbonyl compound. The enolate formation takes place from carbonyl compound which attacks the α,β-unsaturated carbonyl compound to form 1,5-dicarbonyl compound. This compound undergoes intramolecular aldol condensation which leads to the formation of a ring.

Answer 6

Chapter 24, Problem 24.56P

Interpretation Introduction

Interpretation: The stepwise mechanism for the given Robinson annulation is to be drawn.

Concept introduction: Robinson annulation is a combination of Michael addition and intramolecular aldol condensation reactions. It takes place between an α,β-unsaturated carbonyl compound and a carbonyl compound. The enolate formation takes place from carbonyl compound which attacks the α,β-unsaturated carbonyl compound to form 1,5-dicarbonyl compound. This compound undergoes intramolecular aldol condensation which leads to the formation of a ring.

Answer 7

Chapter 24, Problem 24.56P

Interpretation Introduction

Interpretation: The stepwise mechanism for the given Robinson annulation is to be drawn.

Concept introduction: Robinson annulation is a combination of Michael addition and intramolecular aldol condensation reactions. It takes place between an α,β-unsaturated carbonyl compound and a carbonyl compound. The enolate formation takes place from carbonyl compound which attacks the α,β-unsaturated carbonyl compound to form 1,5-dicarbonyl compound. This compound undergoes intramolecular aldol condensation which leads to the formation of a ring.

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Answer 11

Ch. 24 - Prob. 24.1P Ch. 24 - Prob. 24.2P Ch. 24 - Problem 24.3 What unsaturated carbonyl compound is...Ch. 24 - Acid-catalyzed dehydration of hydroxy carbonyl...Ch. 24 - Prob. 24.5P Ch. 24 - Prob. 24.6P Ch. 24 - Prob. 24.7P Ch. 24 - Problem 24.8 Draw the products formed in the...Ch. 24 - Prob. 24.9P Ch. 24 - Prob. 24.10P

Solution Summary: The author explains the stepwise mechanism for the given Robinson annulation: Michael addition and intramolecular aldol condensation reactions.

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