The reagents used to convert D-ribose into D-erythrose should be determined. Concept introduction: The Wohl degradation : aldoses is reaction with hydroxylamine and sodium methoxide which yields oxime then resultant oxime is reaction with acetic anhydride in acetic acid with sodium acetate which afforded chain shortened nitrile. In this reaction step the oxime is converted into the nitrile with simultaneous conversion of all the alcohol groups to acetate groups. Finally, sodium methoxide in methanol is added to the reaction which yields the final degradation compound.

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Answer 1

Question

Chapter 24.6, Problem 37CC

Interpretation Introduction

Interpretation:

The reagents used to convert D-ribose into D-erythrose should be determined.

Concept introduction:

The Wohl degradation: aldoses is reaction with hydroxylamine and sodium methoxide which yields oxime then resultant oxime is reaction with acetic anhydride in acetic acid with sodium acetate which afforded chain shortened nitrile. In this reaction step the oxime is converted into the nitrile with simultaneous conversion of all the alcohol groups to acetate groups. Finally, sodium methoxide in methanol is added to the reaction which yields the final degradation compound.

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Answer 2

Question

Chapter 24.6, Problem 37CC

Interpretation Introduction

Interpretation:

The reagents used to convert D-ribose into D-erythrose should be determined.

Concept introduction:

The Wohl degradation: aldoses is reaction with hydroxylamine and sodium methoxide which yields oxime then resultant oxime is reaction with acetic anhydride in acetic acid with sodium acetate which afforded chain shortened nitrile. In this reaction step the oxime is converted into the nitrile with simultaneous conversion of all the alcohol groups to acetate groups. Finally, sodium methoxide in methanol is added to the reaction which yields the final degradation compound.

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Answer 3

Question

Chapter 24.6, Problem 37CC

Interpretation Introduction

Interpretation:

The reagents used to convert D-ribose into D-erythrose should be determined.

Concept introduction:

The Wohl degradation: aldoses is reaction with hydroxylamine and sodium methoxide which yields oxime then resultant oxime is reaction with acetic anhydride in acetic acid with sodium acetate which afforded chain shortened nitrile. In this reaction step the oxime is converted into the nitrile with simultaneous conversion of all the alcohol groups to acetate groups. Finally, sodium methoxide in methanol is added to the reaction which yields the final degradation compound.

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Answer 4

Question

Chapter 24.6, Problem 37CC

Interpretation Introduction

Interpretation:

The reagents used to convert D-ribose into D-erythrose should be determined.

Concept introduction:

The Wohl degradation: aldoses is reaction with hydroxylamine and sodium methoxide which yields oxime then resultant oxime is reaction with acetic anhydride in acetic acid with sodium acetate which afforded chain shortened nitrile. In this reaction step the oxime is converted into the nitrile with simultaneous conversion of all the alcohol groups to acetate groups. Finally, sodium methoxide in methanol is added to the reaction which yields the final degradation compound.

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Answer 5

Chapter 24.6, Problem 37CC

Interpretation Introduction

Interpretation:

The reagents used to convert D-ribose into D-erythrose should be determined.

Concept introduction:

The Wohl degradation: aldoses is reaction with hydroxylamine and sodium methoxide which yields oxime then resultant oxime is reaction with acetic anhydride in acetic acid with sodium acetate which afforded chain shortened nitrile. In this reaction step the oxime is converted into the nitrile with simultaneous conversion of all the alcohol groups to acetate groups. Finally, sodium methoxide in methanol is added to the reaction which yields the final degradation compound.

Answer 6

Chapter 24.6, Problem 37CC

Interpretation Introduction

Interpretation:

The reagents used to convert D-ribose into D-erythrose should be determined.

Concept introduction:

The Wohl degradation: aldoses is reaction with hydroxylamine and sodium methoxide which yields oxime then resultant oxime is reaction with acetic anhydride in acetic acid with sodium acetate which afforded chain shortened nitrile. In this reaction step the oxime is converted into the nitrile with simultaneous conversion of all the alcohol groups to acetate groups. Finally, sodium methoxide in methanol is added to the reaction which yields the final degradation compound.

Answer 7

Chapter 24.6, Problem 37CC

Interpretation Introduction

Interpretation:

The reagents used to convert D-ribose into D-erythrose should be determined.

Concept introduction:

The Wohl degradation: aldoses is reaction with hydroxylamine and sodium methoxide which yields oxime then resultant oxime is reaction with acetic anhydride in acetic acid with sodium acetate which afforded chain shortened nitrile. In this reaction step the oxime is converted into the nitrile with simultaneous conversion of all the alcohol groups to acetate groups. Finally, sodium methoxide in methanol is added to the reaction which yields the final degradation compound.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 24.2 - Prob. 1CC Ch. 24.2 - Prob. 2CC Ch. 24.2 - Prob. 3CC Ch. 24.2 - Prob. 4CC Ch. 24.2 - Prob. 5CC Ch. 24.2 - Prob. 6CC Ch. 24.4 - Prob. 7CC Ch. 24.4 - Prob. 8CC Ch. 24.5 - Prob. 1LTS Ch. 24.5 - Prob. 9PTS

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Chapter 24 Solutions