(a) Interpretation: Whether the given transformation requires hydroxyl to protect it is to be determined. Concept introduction: The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restores the original functional group.

Question

Is (CH3)3NHBr an acidic or basic salt? What happens when dissolved in aqueous solution? Doesn't it lose a Br-? Does it interact with the water? Please advise.

Answer 1

Question

Chapter 19, Problem 19.48P

Interpretation Introduction

(a)

Interpretation:

Whether the given transformation requires hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restores the original functional group.

Interpretation Introduction

(b)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Interpretation Introduction

(c)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Interpretation Introduction

(d)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

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Answer 2

Question

Chapter 19, Problem 19.48P

Interpretation Introduction

(a)

Interpretation:

Whether the given transformation requires hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restores the original functional group.

Interpretation Introduction

(b)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Interpretation Introduction

(c)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Interpretation Introduction

(d)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

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Answer 3

Question

Chapter 19, Problem 19.48P

Interpretation Introduction

(a)

Interpretation:

Whether the given transformation requires hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restores the original functional group.

Interpretation Introduction

(b)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Interpretation Introduction

(c)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Interpretation Introduction

(d)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

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Answer 4

Question

Chapter 19, Problem 19.48P

Interpretation Introduction

(a)

Interpretation:

Whether the given transformation requires hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restores the original functional group.

Interpretation Introduction

(b)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Interpretation Introduction

(c)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Interpretation Introduction

(d)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

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Answer 5

Chapter 19, Problem 19.48P

Interpretation Introduction

(a)

Interpretation:

Whether the given transformation requires hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restores the original functional group.

Interpretation Introduction

(b)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Interpretation Introduction

(c)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Interpretation Introduction

(d)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Answer 6

Chapter 19, Problem 19.48P

Interpretation Introduction

(a)

Interpretation:

Whether the given transformation requires hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restores the original functional group.

Answer 7

Chapter 19, Problem 19.48P

Interpretation Introduction

(a)

Interpretation:

Whether the given transformation requires hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restores the original functional group.

Answer 8

Interpretation Introduction

(b)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Answer 9

Interpretation Introduction

(b)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Answer 10

Interpretation Introduction

(c)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Answer 11

Interpretation Introduction

(c)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Answer 12

Interpretation Introduction

(d)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Answer 13

Interpretation Introduction

(d)

Interpretation:

Whether the given transformation required hydroxyl to protect it is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out and restore the original functional group.

Answer 14

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Answer 19

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Answer 25

Ch. 19 - Prob. 19.1P Ch. 19 - Prob. 19.2P Ch. 19 - Prob. 19.3P Ch. 19 - Prob. 19.4P Ch. 19 - Prob. 19.5P Ch. 19 - Prob. 19.6P Ch. 19 - Prob. 19.7P Ch. 19 - Prob. 19.8P Ch. 19 - Prob. 19.9P Ch. 19 - Prob. 19.10P

Solution Summary: The author explains that the requirement of hydroxyl protection is determined based on its reactivity under the reaction conditions.

Chapter 19 Solutions