Using curved arrows, a mechanism is to be written to show the formation of oxygen-stabilized carbocation from each of the glycosyl donor. Concept introduction: The sulfide acts as a good nucleophile on reaction with an electrophile and forms sulfonium salts. In pyranose, the carbocation formed at anomeric carbon stabilized by delocalization of pi electrons on oxygen is called oxygen-stabilized carbocation. Due to planarity, the group attacking the oxygen-stabilized carbocation may approach from either side of the ring and gives N-trimethylsilyl . Trimethylsilyl trifluoromethanesulfonate or methyl trifluoromethanesulfonate can be used to convert the group or atom to a good leaving group in a substitution reaction.

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Answer 1

Question

Chapter 24, Problem 39P

Interpretation Introduction

Interpretation:

Using curved arrows, a mechanism is to be written to show the formation of oxygen-stabilized carbocation from each of the glycosyl donor.

Concept introduction:

The sulfide acts as a good nucleophile on reaction with an electrophile and forms sulfonium salts.

In pyranose, the carbocation formed at anomeric carbon stabilized by delocalization of pi electrons on oxygen is called oxygen-stabilized carbocation.

Due to planarity, the group attacking the oxygen-stabilized carbocation may approach from either side of the ring and gives N-trimethylsilyl.

Trimethylsilyl trifluoromethanesulfonate or methyl trifluoromethanesulfonate can be used to convert the group or atom to a good leaving group in a substitution reaction.

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Answer 2

Question

Chapter 24, Problem 39P

Interpretation Introduction

Interpretation:

Using curved arrows, a mechanism is to be written to show the formation of oxygen-stabilized carbocation from each of the glycosyl donor.

Concept introduction:

The sulfide acts as a good nucleophile on reaction with an electrophile and forms sulfonium salts.

In pyranose, the carbocation formed at anomeric carbon stabilized by delocalization of pi electrons on oxygen is called oxygen-stabilized carbocation.

Due to planarity, the group attacking the oxygen-stabilized carbocation may approach from either side of the ring and gives N-trimethylsilyl.

Trimethylsilyl trifluoromethanesulfonate or methyl trifluoromethanesulfonate can be used to convert the group or atom to a good leaving group in a substitution reaction.

Expert Solution & Answer

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Answer 3

Question

Chapter 24, Problem 39P

Interpretation Introduction

Interpretation:

Using curved arrows, a mechanism is to be written to show the formation of oxygen-stabilized carbocation from each of the glycosyl donor.

Concept introduction:

The sulfide acts as a good nucleophile on reaction with an electrophile and forms sulfonium salts.

In pyranose, the carbocation formed at anomeric carbon stabilized by delocalization of pi electrons on oxygen is called oxygen-stabilized carbocation.

Due to planarity, the group attacking the oxygen-stabilized carbocation may approach from either side of the ring and gives N-trimethylsilyl.

Trimethylsilyl trifluoromethanesulfonate or methyl trifluoromethanesulfonate can be used to convert the group or atom to a good leaving group in a substitution reaction.

Expert Solution & Answer

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Answer 4

Question

Chapter 24, Problem 39P

Interpretation Introduction

Interpretation:

Using curved arrows, a mechanism is to be written to show the formation of oxygen-stabilized carbocation from each of the glycosyl donor.

Concept introduction:

The sulfide acts as a good nucleophile on reaction with an electrophile and forms sulfonium salts.

In pyranose, the carbocation formed at anomeric carbon stabilized by delocalization of pi electrons on oxygen is called oxygen-stabilized carbocation.

Due to planarity, the group attacking the oxygen-stabilized carbocation may approach from either side of the ring and gives N-trimethylsilyl.

Trimethylsilyl trifluoromethanesulfonate or methyl trifluoromethanesulfonate can be used to convert the group or atom to a good leaving group in a substitution reaction.

Expert Solution & Answer

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Answer 5

Chapter 24, Problem 39P

Interpretation Introduction

Interpretation:

Using curved arrows, a mechanism is to be written to show the formation of oxygen-stabilized carbocation from each of the glycosyl donor.

Concept introduction:

The sulfide acts as a good nucleophile on reaction with an electrophile and forms sulfonium salts.

In pyranose, the carbocation formed at anomeric carbon stabilized by delocalization of pi electrons on oxygen is called oxygen-stabilized carbocation.

Due to planarity, the group attacking the oxygen-stabilized carbocation may approach from either side of the ring and gives N-trimethylsilyl.

Trimethylsilyl trifluoromethanesulfonate or methyl trifluoromethanesulfonate can be used to convert the group or atom to a good leaving group in a substitution reaction.

Answer 6

Chapter 24, Problem 39P

Interpretation Introduction

Interpretation:

Using curved arrows, a mechanism is to be written to show the formation of oxygen-stabilized carbocation from each of the glycosyl donor.

Concept introduction:

The sulfide acts as a good nucleophile on reaction with an electrophile and forms sulfonium salts.

In pyranose, the carbocation formed at anomeric carbon stabilized by delocalization of pi electrons on oxygen is called oxygen-stabilized carbocation.

Due to planarity, the group attacking the oxygen-stabilized carbocation may approach from either side of the ring and gives N-trimethylsilyl.

Trimethylsilyl trifluoromethanesulfonate or methyl trifluoromethanesulfonate can be used to convert the group or atom to a good leaving group in a substitution reaction.

Answer 7

Chapter 24, Problem 39P

Interpretation Introduction

Interpretation:

Using curved arrows, a mechanism is to be written to show the formation of oxygen-stabilized carbocation from each of the glycosyl donor.

Concept introduction:

The sulfide acts as a good nucleophile on reaction with an electrophile and forms sulfonium salts.

In pyranose, the carbocation formed at anomeric carbon stabilized by delocalization of pi electrons on oxygen is called oxygen-stabilized carbocation.

Due to planarity, the group attacking the oxygen-stabilized carbocation may approach from either side of the ring and gives N-trimethylsilyl.

Trimethylsilyl trifluoromethanesulfonate or methyl trifluoromethanesulfonate can be used to convert the group or atom to a good leaving group in a substitution reaction.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 24.2 - Prob. 1P Ch. 24.3 - Problem 24.2 Which aldotetrose in the structure...Ch. 24.4 - Prob. 3P Ch. 24.4 - Prob. 4P Ch. 24.6 - Prob. 5P Ch. 24.6 - Prob. 6P Ch. 24.7 - Prob. 7P Ch. 24.8 - Prob. 8P Ch. 24.8 - Prob. 9P Ch. 24.9 - Prob. 10P

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Chapter 24 Solutions