a) Interpretation: How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one is to be shown. Concept introduction: The double bond in an unsaturated ketone is to be reduced without affecting the carbonyl group. This reduction can be carried out using H 2 /Pd. To show: How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one.

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Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 19.9, Problem 13P

Interpretation Introduction

a)

Interpretation:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is to be reduced without affecting the carbonyl group. This reduction can be carried out using H₂/Pd.

To show:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one.

Interpretation Introduction

b)

Interpretation:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The carbonyl group in a unsaturated ketone can be reduced to –CH₂ without affecting the double bond by treating it with hydrazine in the presence of KOH (Wolf-Kishner reduction).

To show:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one.

Interpretation Introduction

c)

Interpretation:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is reduced without affecting the carbonyl group by treating it with H₂/Pd. The carbonyl group of the saturated ketone formed can be converted to –CH₂ group by Wolff-Kishner reduction.

To show:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one.

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Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 19.9, Problem 13P

Interpretation Introduction

a)

Interpretation:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is to be reduced without affecting the carbonyl group. This reduction can be carried out using H₂/Pd.

To show:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one.

Interpretation Introduction

b)

Interpretation:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The carbonyl group in a unsaturated ketone can be reduced to –CH₂ without affecting the double bond by treating it with hydrazine in the presence of KOH (Wolf-Kishner reduction).

To show:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one.

Interpretation Introduction

c)

Interpretation:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is reduced without affecting the carbonyl group by treating it with H₂/Pd. The carbonyl group of the saturated ketone formed can be converted to –CH₂ group by Wolff-Kishner reduction.

To show:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one.

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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 ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 19.9, Problem 13P

Interpretation Introduction

a)

Interpretation:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is to be reduced without affecting the carbonyl group. This reduction can be carried out using H₂/Pd.

To show:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one.

Interpretation Introduction

b)

Interpretation:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The carbonyl group in a unsaturated ketone can be reduced to –CH₂ without affecting the double bond by treating it with hydrazine in the presence of KOH (Wolf-Kishner reduction).

To show:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one.

Interpretation Introduction

c)

Interpretation:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is reduced without affecting the carbonyl group by treating it with H₂/Pd. The carbonyl group of the saturated ketone formed can be converted to –CH₂ group by Wolff-Kishner reduction.

To show:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one.

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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 ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 19.9, Problem 13P

Interpretation Introduction

a)

Interpretation:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is to be reduced without affecting the carbonyl group. This reduction can be carried out using H₂/Pd.

To show:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one.

Interpretation Introduction

b)

Interpretation:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The carbonyl group in a unsaturated ketone can be reduced to –CH₂ without affecting the double bond by treating it with hydrazine in the presence of KOH (Wolf-Kishner reduction).

To show:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one.

Interpretation Introduction

c)

Interpretation:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is reduced without affecting the carbonyl group by treating it with H₂/Pd. The carbonyl group of the saturated ketone formed can be converted to –CH₂ group by Wolff-Kishner reduction.

To show:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one.

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Answer 5

Chapter 19.9, Problem 13P

Interpretation Introduction

a)

Interpretation:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is to be reduced without affecting the carbonyl group. This reduction can be carried out using H₂/Pd.

To show:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one.

Interpretation Introduction

b)

Interpretation:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The carbonyl group in a unsaturated ketone can be reduced to –CH₂ without affecting the double bond by treating it with hydrazine in the presence of KOH (Wolf-Kishner reduction).

To show:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one.

Interpretation Introduction

c)

Interpretation:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is reduced without affecting the carbonyl group by treating it with H₂/Pd. The carbonyl group of the saturated ketone formed can be converted to –CH₂ group by Wolff-Kishner reduction.

To show:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one.

Answer 6

Chapter 19.9, Problem 13P

Interpretation Introduction

a)

Interpretation:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is to be reduced without affecting the carbonyl group. This reduction can be carried out using H₂/Pd.

To show:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one.

Answer 7

Chapter 19.9, Problem 13P

Interpretation Introduction

a)

Interpretation:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is to be reduced without affecting the carbonyl group. This reduction can be carried out using H₂/Pd.

To show:

How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one.

Answer 8

Interpretation Introduction

b)

Interpretation:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The carbonyl group in a unsaturated ketone can be reduced to –CH₂ without affecting the double bond by treating it with hydrazine in the presence of KOH (Wolf-Kishner reduction).

To show:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one.

Answer 9

Interpretation Introduction

b)

Interpretation:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The carbonyl group in a unsaturated ketone can be reduced to –CH₂ without affecting the double bond by treating it with hydrazine in the presence of KOH (Wolf-Kishner reduction).

To show:

How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one.

Answer 10

Interpretation Introduction

c)

Interpretation:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is reduced without affecting the carbonyl group by treating it with H₂/Pd. The carbonyl group of the saturated ketone formed can be converted to –CH₂ group by Wolff-Kishner reduction.

To show:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one.

Answer 11

Interpretation Introduction

c)

Interpretation:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one is to be shown.

Concept introduction:

The double bond in an unsaturated ketone is reduced without affecting the carbonyl group by treating it with H₂/Pd. The carbonyl group of the saturated ketone formed can be converted to –CH₂ group by Wolff-Kishner reduction.

To show:

How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one.

Answer 12

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Answer 13

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Answer 19

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Answer 23

Ch. 19.1 - Prob. 1P Ch. 19.1 - Draw structures corresponding to the following...Ch. 19.2 - Prob. 3P Ch. 19.2 - How would you carry out the following reactions?...Ch. 19.4 - Treatment of an aldehyde or ketone with cyanide...Ch. 19.4 - p-Nitrobenzaldehyde is more reactive toward...Ch. 19.5 - Prob. 7P Ch. 19.5 - The oxygen in water is primarily (99.8) 16O, but...Ch. 19.6 - Prob. 9P Ch. 19.8 - Show the products you would obtain by...

Solution Summary: The author explains how the double bond in an unsaturated ketone is reduced without affecting the carbonyl group by treating it with H 2 /Pd.

Chapter 19 Solutions