The mechanism for the Perkin condensation has to be proposed. Concept introduction: The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β – carboxylic acid (Cinnamic acid). It is called Perkin condensation.

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Answer 1

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 19, Problem 19.38P

(a)

Interpretation Introduction

Interpretation:

The mechanism for the Perkin condensation has to be proposed.

Concept introduction:

The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β–carboxylic acid (Cinnamic acid). It is called Perkin condensation.

(b)

Interpretation Introduction

Interpretation:

The mechanism for the Darzens condensation has to be proposed.

Concept introduction:

In the Darzens condensation, the enolate of the α-haloester is formed, which then attacks the ketone carbonyl group reminiscent of an aldol reaction.

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How many signals do you expect in the H NMR spectrum for this molecule? Br Br Write the answer below. Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H atoms that would contribute to the same signal as the H already highlighted red. Note for advanced students: In this question, any multiplet is counted as one signal. Number of signals in the 'H NMR spectrum. For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box at right. No additional Hs to color in top molecule For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box at right. No additional Hs to color in bottom molecule

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Answer 2

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 19, Problem 19.38P

(a)

Interpretation Introduction

Interpretation:

The mechanism for the Perkin condensation has to be proposed.

Concept introduction:

The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β–carboxylic acid (Cinnamic acid). It is called Perkin condensation.

(b)

Interpretation Introduction

Interpretation:

The mechanism for the Darzens condensation has to be proposed.

Concept introduction:

In the Darzens condensation, the enolate of the α-haloester is formed, which then attacks the ketone carbonyl group reminiscent of an aldol reaction.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 19, Problem 19.38P

(a)

Interpretation Introduction

Interpretation:

The mechanism for the Perkin condensation has to be proposed.

Concept introduction:

The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β–carboxylic acid (Cinnamic acid). It is called Perkin condensation.

(b)

Interpretation Introduction

Interpretation:

The mechanism for the Darzens condensation has to be proposed.

Concept introduction:

In the Darzens condensation, the enolate of the α-haloester is formed, which then attacks the ketone carbonyl group reminiscent of an aldol reaction.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 19, Problem 19.38P

(a)

Interpretation Introduction

Interpretation:

The mechanism for the Perkin condensation has to be proposed.

Concept introduction:

The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β–carboxylic acid (Cinnamic acid). It is called Perkin condensation.

(b)

Interpretation Introduction

Interpretation:

The mechanism for the Darzens condensation has to be proposed.

Concept introduction:

In the Darzens condensation, the enolate of the α-haloester is formed, which then attacks the ketone carbonyl group reminiscent of an aldol reaction.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 19, Problem 19.38P

(a)

Interpretation Introduction

Interpretation:

The mechanism for the Perkin condensation has to be proposed.

Concept introduction:

The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β–carboxylic acid (Cinnamic acid). It is called Perkin condensation.

(b)

Interpretation Introduction

Interpretation:

The mechanism for the Darzens condensation has to be proposed.

Concept introduction:

In the Darzens condensation, the enolate of the α-haloester is formed, which then attacks the ketone carbonyl group reminiscent of an aldol reaction.

Answer 6

Chapter 19, Problem 19.38P

(a)

Interpretation Introduction

Interpretation:

The mechanism for the Perkin condensation has to be proposed.

Concept introduction:

The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β–carboxylic acid (Cinnamic acid). It is called Perkin condensation.

Answer 7

Chapter 19, Problem 19.38P

(a)

Interpretation Introduction

Interpretation:

The mechanism for the Perkin condensation has to be proposed.

Concept introduction:

The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β–carboxylic acid (Cinnamic acid). It is called Perkin condensation.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The mechanism for the Darzens condensation has to be proposed.

Concept introduction:

In the Darzens condensation, the enolate of the α-haloester is formed, which then attacks the ketone carbonyl group reminiscent of an aldol reaction.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The mechanism for the Darzens condensation has to be proposed.

Concept introduction:

In the Darzens condensation, the enolate of the α-haloester is formed, which then attacks the ketone carbonyl group reminiscent of an aldol reaction.

Answer 10

Expert Solution & Answer

Answer 11

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Answer 12

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Answer 13

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

The mechanism for the Perkin condensation has to be proposed. Concept introduction: The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β – carboxylic acid (Cinnamic acid). It is called Perkin condensation.

Solution Summary: The author explains the mechanism for the Perkin condensation. Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base.

Interpretation:

The mechanism for the Perkin condensation has to be proposed.

Concept introduction:

The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β–carboxylic acid (Cinnamic acid). It is called Perkin condensation.

Interpretation:

The mechanism for the Darzens condensation has to be proposed.

Concept introduction:

In the Darzens condensation, the enolate of the α-haloester is formed, which then attacks the ketone carbonyl group reminiscent of an aldol reaction.

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Chapter 19 Solutions

The mechanism for the Perkin condensation has to be proposed. Concept introduction: The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β – carboxylic acid (Cinnamic acid). It is called Perkin condensation.

Solution Summary: The author explains the mechanism for the Perkin condensation. Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base.

Interpretation: The mechanism for the Perkin condensation has to be proposed. Concept introduction: The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β–carboxylic acid (Cinnamic acid). It is called Perkin condensation.

Interpretation: The mechanism for the Darzens condensation has to be proposed. Concept introduction: In the Darzens condensation, the enolate of the α-haloester is formed, which then attacks the ketone carbonyl group reminiscent of an aldol reaction.

Want to see the full answer?

Chapter 19 Solutions

Interpretation:

The mechanism for the Perkin condensation has to be proposed.

Concept introduction:

The Aromatic aldehyde reacts with acetic anhydride in presence of the sodium acetate base to gives α, β–carboxylic acid (Cinnamic acid). It is called Perkin condensation.

Interpretation:

The mechanism for the Darzens condensation has to be proposed.

Concept introduction:

In the Darzens condensation, the enolate of the α-haloester is formed, which then attacks the ketone carbonyl group reminiscent of an aldol reaction.