(a) Interpretation: The carbonyl compounds needed to synthesize octinoxate using a condensation reaction is to be predicted. Concept introduction: Claisen condensation takes place between two esters or between an ester and a ketone . In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β -ketoester.

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Answer 1

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Chapter 24, Problem 24.64P

Interpretation Introduction

(a)

Interpretation: The carbonyl compounds needed to synthesize octinoxate using a condensation reaction is to be predicted.

Concept introduction: Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

Interpretation Introduction

(b)

Interpretation: Synthesis of octinoxate is to be devised from the given starting materials and other needed reagents is to be devised.

Concept introduction: In Aldol condensation reaction, the base abstracts the acidic proton from α carbon atom to form enolate. This enolate or enol reacts with carbonyl compound that leads to the formation of β-hydroxyaldehyde or β-hydroxyketone which on further dehydration gives the conjugated enone.

Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

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Answer 2

Question

Chapter 24, Problem 24.64P

Interpretation Introduction

(a)

Interpretation: The carbonyl compounds needed to synthesize octinoxate using a condensation reaction is to be predicted.

Concept introduction: Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

Interpretation Introduction

(b)

Interpretation: Synthesis of octinoxate is to be devised from the given starting materials and other needed reagents is to be devised.

Concept introduction: In Aldol condensation reaction, the base abstracts the acidic proton from α carbon atom to form enolate. This enolate or enol reacts with carbonyl compound that leads to the formation of β-hydroxyaldehyde or β-hydroxyketone which on further dehydration gives the conjugated enone.

Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

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Answer 3

Question

Chapter 24, Problem 24.64P

Interpretation Introduction

(a)

Interpretation: The carbonyl compounds needed to synthesize octinoxate using a condensation reaction is to be predicted.

Concept introduction: Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

Interpretation Introduction

(b)

Interpretation: Synthesis of octinoxate is to be devised from the given starting materials and other needed reagents is to be devised.

Concept introduction: In Aldol condensation reaction, the base abstracts the acidic proton from α carbon atom to form enolate. This enolate or enol reacts with carbonyl compound that leads to the formation of β-hydroxyaldehyde or β-hydroxyketone which on further dehydration gives the conjugated enone.

Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

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Answer 4

Question

Chapter 24, Problem 24.64P

Interpretation Introduction

(a)

Interpretation: The carbonyl compounds needed to synthesize octinoxate using a condensation reaction is to be predicted.

Concept introduction: Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

Interpretation Introduction

(b)

Interpretation: Synthesis of octinoxate is to be devised from the given starting materials and other needed reagents is to be devised.

Concept introduction: In Aldol condensation reaction, the base abstracts the acidic proton from α carbon atom to form enolate. This enolate or enol reacts with carbonyl compound that leads to the formation of β-hydroxyaldehyde or β-hydroxyketone which on further dehydration gives the conjugated enone.

Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

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Answer 5

Chapter 24, Problem 24.64P

Interpretation Introduction

(a)

Interpretation: The carbonyl compounds needed to synthesize octinoxate using a condensation reaction is to be predicted.

Concept introduction: Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

Interpretation Introduction

(b)

Interpretation: Synthesis of octinoxate is to be devised from the given starting materials and other needed reagents is to be devised.

Concept introduction: In Aldol condensation reaction, the base abstracts the acidic proton from α carbon atom to form enolate. This enolate or enol reacts with carbonyl compound that leads to the formation of β-hydroxyaldehyde or β-hydroxyketone which on further dehydration gives the conjugated enone.

Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

Answer 6

Chapter 24, Problem 24.64P

Interpretation Introduction

(a)

Interpretation: The carbonyl compounds needed to synthesize octinoxate using a condensation reaction is to be predicted.

Concept introduction: Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

Answer 7

Chapter 24, Problem 24.64P

Interpretation Introduction

(a)

Interpretation: The carbonyl compounds needed to synthesize octinoxate using a condensation reaction is to be predicted.

Concept introduction: Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

Answer 8

Interpretation Introduction

(b)

Interpretation: Synthesis of octinoxate is to be devised from the given starting materials and other needed reagents is to be devised.

Concept introduction: In Aldol condensation reaction, the base abstracts the acidic proton from α carbon atom to form enolate. This enolate or enol reacts with carbonyl compound that leads to the formation of β-hydroxyaldehyde or β-hydroxyketone which on further dehydration gives the conjugated enone.

Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

Answer 9

Interpretation Introduction

(b)

Interpretation: Synthesis of octinoxate is to be devised from the given starting materials and other needed reagents is to be devised.

Concept introduction: In Aldol condensation reaction, the base abstracts the acidic proton from α carbon atom to form enolate. This enolate or enol reacts with carbonyl compound that leads to the formation of β-hydroxyaldehyde or β-hydroxyketone which on further dehydration gives the conjugated enone.

Claisen condensation takes place between two esters or between an ester and a ketone. In crossed Claisen condensation reaction, a base abstracts an acidic proton from an α carbon atom of carbonyl group to form an enolate. This enolate reacts with carbonyl group of other carbonyl compounds that lead to the formation of β-ketoester.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 24 - Prob. 24.1P Ch. 24 - Prob. 24.2P Ch. 24 - Problem 24.3 What unsaturated carbonyl compound is...Ch. 24 - Prob. 24.4P Ch. 24 - Prob. 24.5P Ch. 24 - Prob. 24.6P Ch. 24 - Problem 24.7 Draw the products formed in each...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 that the carbonyl compounds needed to synthesize octinoxate using a condensation reaction are shown in Figure 1.

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Chapter 24 Solutions