The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine . Concept introduction: When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

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Answer 1

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Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 22.4, Problem 22.9P

(a)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

(b)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favourable for enamine reactions.

(c)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

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21.50 Determine the combinations of haloalkane(s) and alkoxide(s) that could be used to synthesize the following ethers through Williamson ether synthesis. (a) (c) (d) (e) (f) H₂CO

1. Arrange the following in order of increasing bond energy (lowest bond energy first, highest bond energy last). Provide your rationale. C=C, C-F, C=C, C-N, C-C List the bond order for each example.

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 22.4, Problem 22.9P

(a)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

(b)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favourable for enamine reactions.

(c)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

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Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 22.4, Problem 22.9P

(a)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

(b)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favourable for enamine reactions.

(c)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

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Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 22.4, Problem 22.9P

(a)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

(b)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favourable for enamine reactions.

(c)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

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Answer 5

Chapter 22.4, Problem 22.9P

(a)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

(b)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favourable for enamine reactions.

(c)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

Answer 6

Chapter 22.4, Problem 22.9P

(a)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

Answer 7

Chapter 22.4, Problem 22.9P

(a)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favourable for enamine reactions.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favourable for enamine reactions.

Answer 10

(c)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

Answer 11

(c)

Interpretation Introduction

Interpretation:

The given conversion is to be accomplished with the help of enamine synthesis using pyrrolidine as the secondary amine.

Concept introduction:

When aldehydes or ketones react with a secondary amine, formation of enamine takes place. The nitrogen analog of an enol is known as enamine. From the resonating structures of enamine, it is clear that it nucleophilic in nature. Reactivity of enamines is higher than an enol but less than an enolate ion. Milder conditions are favored for enamine reactions.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 22.2A - Prob. 22.2P Ch. 22.4 - Without looking back, propose a mechanism for the...Ch. 22.4 - Prob. 22.8P Ch. 22.4 - Prob. 22.9P Ch. 22.5A - Prob. 22.10P Ch. 22.5A - Prob. 22.11P Ch. 22.5B - Prob. 22.12P Ch. 22.5B - Predict the products of the following reactions....Ch. 22.5B - Which compounds will give positive iodoform tests?...Ch. 22.5C - Propose a mechanism for the acid-catalyzed...

Solution Summary: The author explains that aldehydes or ketones react with a secondary amine, formation of enamine takes place.

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