(a) Interpretation: It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol . Concept introduction: 1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde . The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

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Answer 1

Question

Chapter 19, Problem 19.24P

Interpretation Introduction

(a)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

Interpretation Introduction

(b)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

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Answer 2

Question

Chapter 19, Problem 19.24P

Interpretation Introduction

(a)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

Interpretation Introduction

(b)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

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Answer 3

Question

Chapter 19, Problem 19.24P

Interpretation Introduction

(a)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

Interpretation Introduction

(b)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

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Answer 4

Question

Chapter 19, Problem 19.24P

Interpretation Introduction

(a)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

Interpretation Introduction

(b)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

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Answer 5

Chapter 19, Problem 19.24P

Interpretation Introduction

(a)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

Interpretation Introduction

(b)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

Answer 6

Chapter 19, Problem 19.24P

Interpretation Introduction

(a)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

Answer 7

Chapter 19, Problem 19.24P

Interpretation Introduction

(a)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

Answer 8

Interpretation Introduction

(b)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

Answer 9

Interpretation Introduction

(b)

Interpretation:

It is to be shown how to carry out the given synthesis from 1, 2, 5-pentanetriol.

Concept introduction:

1, 2-diols can be protected using acetone, which forms five-membered ring acetals, and 1, 2-diols are also used to protect a ketone or aldehyde. The protected forms of acetals are stable under basic and unreactive to the nucleophile. Deprotection of acetals requires dilute aqueous acid like dilute sulphuric acid.

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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Chapter 19 Solutions