(a) Interpretation: It is to be shown whether the given synthesis can be carried out without protecting the hydroxyl group. Concept introduction: A Williamson ether synthesis is the method of ether synthesis in which the alkyl halide is treated with an alkoxide ion. To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups.

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Answer 1

Question

Chapter 19, Problem 19.21P

Interpretation Introduction

(a)

Interpretation:

It is to be shown whether the given synthesis can be carried out without protecting the hydroxyl group.

Concept introduction:

A Williamson ether synthesis is the method of ether synthesis in which the alkyl halide is treated with an alkoxide ion. To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups.

Interpretation Introduction

(b)

Interpretation:

Which other protecting groups from the Table 19-2 can be used instead in the given reaction to be explained.

Concept introduction:

To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups. Other methods to protect the alcoholic group are to form its MOM ether, which is carried out by treating the alcoholic group with corresponding halide of the MOM group under the strong basic condition. The corresponding ether is formed via Williamson ether synthesis.

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Students have asked these similar questions

First image: I have to show the mecanism for the reaction on the left, where the alcohol A is added fast in one portion Second image: I have to show the mecanism of the reaction at the bottom. Also I have to show by mecanism why the reaction wouldn't work if the alcohol was primary

First image: I have to explain why the molecule C is never formed in those conditions. Second image: I have to propose a synthesis for the lactone A

First image: I have to explain why the molecule C is never formed in these conditions Second image: I have to propose a synthesis for the lactone A

Answer 2

Question

Chapter 19, Problem 19.21P

Interpretation Introduction

(a)

Interpretation:

It is to be shown whether the given synthesis can be carried out without protecting the hydroxyl group.

Concept introduction:

A Williamson ether synthesis is the method of ether synthesis in which the alkyl halide is treated with an alkoxide ion. To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups.

Interpretation Introduction

(b)

Interpretation:

Which other protecting groups from the Table 19-2 can be used instead in the given reaction to be explained.

Concept introduction:

To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups. Other methods to protect the alcoholic group are to form its MOM ether, which is carried out by treating the alcoholic group with corresponding halide of the MOM group under the strong basic condition. The corresponding ether is formed via Williamson ether synthesis.

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Answer 3

Question

Chapter 19, Problem 19.21P

Interpretation Introduction

(a)

Interpretation:

It is to be shown whether the given synthesis can be carried out without protecting the hydroxyl group.

Concept introduction:

A Williamson ether synthesis is the method of ether synthesis in which the alkyl halide is treated with an alkoxide ion. To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups.

Interpretation Introduction

(b)

Interpretation:

Which other protecting groups from the Table 19-2 can be used instead in the given reaction to be explained.

Concept introduction:

To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups. Other methods to protect the alcoholic group are to form its MOM ether, which is carried out by treating the alcoholic group with corresponding halide of the MOM group under the strong basic condition. The corresponding ether is formed via Williamson ether synthesis.

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Answer 4

Question

Chapter 19, Problem 19.21P

Interpretation Introduction

(a)

Interpretation:

It is to be shown whether the given synthesis can be carried out without protecting the hydroxyl group.

Concept introduction:

A Williamson ether synthesis is the method of ether synthesis in which the alkyl halide is treated with an alkoxide ion. To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups.

Interpretation Introduction

(b)

Interpretation:

Which other protecting groups from the Table 19-2 can be used instead in the given reaction to be explained.

Concept introduction:

To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups. Other methods to protect the alcoholic group are to form its MOM ether, which is carried out by treating the alcoholic group with corresponding halide of the MOM group under the strong basic condition. The corresponding ether is formed via Williamson ether synthesis.

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Answer 5

Chapter 19, Problem 19.21P

Interpretation Introduction

(a)

Interpretation:

It is to be shown whether the given synthesis can be carried out without protecting the hydroxyl group.

Concept introduction:

A Williamson ether synthesis is the method of ether synthesis in which the alkyl halide is treated with an alkoxide ion. To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups.

Interpretation Introduction

(b)

Interpretation:

Which other protecting groups from the Table 19-2 can be used instead in the given reaction to be explained.

Concept introduction:

To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups. Other methods to protect the alcoholic group are to form its MOM ether, which is carried out by treating the alcoholic group with corresponding halide of the MOM group under the strong basic condition. The corresponding ether is formed via Williamson ether synthesis.

Answer 6

Chapter 19, Problem 19.21P

Interpretation Introduction

(a)

Interpretation:

It is to be shown whether the given synthesis can be carried out without protecting the hydroxyl group.

Concept introduction:

A Williamson ether synthesis is the method of ether synthesis in which the alkyl halide is treated with an alkoxide ion. To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups.

Answer 7

Chapter 19, Problem 19.21P

Interpretation Introduction

(a)

Interpretation:

It is to be shown whether the given synthesis can be carried out without protecting the hydroxyl group.

Concept introduction:

A Williamson ether synthesis is the method of ether synthesis in which the alkyl halide is treated with an alkoxide ion. To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups.

Answer 8

Interpretation Introduction

(b)

Interpretation:

Which other protecting groups from the Table 19-2 can be used instead in the given reaction to be explained.

Concept introduction:

To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups. Other methods to protect the alcoholic group are to form its MOM ether, which is carried out by treating the alcoholic group with corresponding halide of the MOM group under the strong basic condition. The corresponding ether is formed via Williamson ether synthesis.

Answer 9

Interpretation Introduction

(b)

Interpretation:

Which other protecting groups from the Table 19-2 can be used instead in the given reaction to be explained.

Concept introduction:

To protect an alcoholic group, it is converted to its silyl ether derivatives like OTBDMS, which is stable under the basic condition or through other protecting groups. Other methods to protect the alcoholic group are to form its MOM ether, which is carried out by treating the alcoholic group with corresponding halide of the MOM group under the strong basic condition. The corresponding ether is formed via Williamson ether synthesis.

Answer 10

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Answer 11

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Answer 12

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Answer 13

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

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