The mechanism showing the conversion of α-D-allopyranose to β-D-allopyranose under acidic conditions is to be drawn. Concept introduction: α-D-allopyranose and β-D-allopyranose are anomers of each other where positions of OH and CH 2 OH at anomeric C is exactly opposite to each other. The electron rich O atom acts as nucleophile, and the C atom in C-O acts as electrophile in α-D-allopyranose . The attack from the bottom pushes the OH group on the opposite side.

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Answer 1

Question

Chapter 18, Problem 18.77P

Interpretation Introduction

Interpretation:

The mechanism showing the conversion of α-D-allopyranose to β-D-allopyranose under acidic conditions is to be drawn.

Concept introduction:

α-D-allopyranose and β-D-allopyranose are anomers of each other where positions of OH and CH2OH at anomeric C is exactly opposite to each other.

The electron rich O atom acts as nucleophile, and the C atom in C-O acts as electrophile in α-D-allopyranose.

The attack from the bottom pushes the OH group on the opposite side.

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Answer 2

Question

Chapter 18, Problem 18.77P

Interpretation Introduction

Interpretation:

The mechanism showing the conversion of α-D-allopyranose to β-D-allopyranose under acidic conditions is to be drawn.

Concept introduction:

α-D-allopyranose and β-D-allopyranose are anomers of each other where positions of OH and CH2OH at anomeric C is exactly opposite to each other.

The electron rich O atom acts as nucleophile, and the C atom in C-O acts as electrophile in α-D-allopyranose.

The attack from the bottom pushes the OH group on the opposite side.

Expert Solution & Answer

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See solution

Answer 3

Question

Chapter 18, Problem 18.77P

Interpretation Introduction

Interpretation:

The mechanism showing the conversion of α-D-allopyranose to β-D-allopyranose under acidic conditions is to be drawn.

Concept introduction:

α-D-allopyranose and β-D-allopyranose are anomers of each other where positions of OH and CH2OH at anomeric C is exactly opposite to each other.

The electron rich O atom acts as nucleophile, and the C atom in C-O acts as electrophile in α-D-allopyranose.

The attack from the bottom pushes the OH group on the opposite side.

Expert Solution & Answer

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Answer 4

Question

Chapter 18, Problem 18.77P

Interpretation Introduction

Interpretation:

The mechanism showing the conversion of α-D-allopyranose to β-D-allopyranose under acidic conditions is to be drawn.

Concept introduction:

α-D-allopyranose and β-D-allopyranose are anomers of each other where positions of OH and CH2OH at anomeric C is exactly opposite to each other.

The electron rich O atom acts as nucleophile, and the C atom in C-O acts as electrophile in α-D-allopyranose.

The attack from the bottom pushes the OH group on the opposite side.

Expert Solution & Answer

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See solution

Answer 5

Chapter 18, Problem 18.77P

Interpretation Introduction

Interpretation:

The mechanism showing the conversion of α-D-allopyranose to β-D-allopyranose under acidic conditions is to be drawn.

Concept introduction:

α-D-allopyranose and β-D-allopyranose are anomers of each other where positions of OH and CH2OH at anomeric C is exactly opposite to each other.

The electron rich O atom acts as nucleophile, and the C atom in C-O acts as electrophile in α-D-allopyranose.

The attack from the bottom pushes the OH group on the opposite side.

Answer 6

Chapter 18, Problem 18.77P

Interpretation Introduction

Interpretation:

The mechanism showing the conversion of α-D-allopyranose to β-D-allopyranose under acidic conditions is to be drawn.

Concept introduction:

α-D-allopyranose and β-D-allopyranose are anomers of each other where positions of OH and CH2OH at anomeric C is exactly opposite to each other.

The electron rich O atom acts as nucleophile, and the C atom in C-O acts as electrophile in α-D-allopyranose.

The attack from the bottom pushes the OH group on the opposite side.

Answer 7

Chapter 18, Problem 18.77P

Interpretation Introduction

Interpretation:

The mechanism showing the conversion of α-D-allopyranose to β-D-allopyranose under acidic conditions is to be drawn.

Concept introduction:

α-D-allopyranose and β-D-allopyranose are anomers of each other where positions of OH and CH2OH at anomeric C is exactly opposite to each other.

The electron rich O atom acts as nucleophile, and the C atom in C-O acts as electrophile in α-D-allopyranose.

The attack from the bottom pushes the OH group on the opposite side.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 18 - Prob. 18.1P Ch. 18 - Prob. 18.2P Ch. 18 - Prob. 18.3P Ch. 18 - Prob. 18.4P Ch. 18 - Prob. 18.5P Ch. 18 - Prob. 18.6P Ch. 18 - Prob. 18.7P Ch. 18 - Prob. 18.8P Ch. 18 - Prob. 18.9P Ch. 18 - Prob. 18.10P

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Chapter 18 Solutions