The mechanism for interconversion of α -D-glucose and β -D-glucose in dilute HCl is to be drawn. Concept Introduction: The hydroxyl group of anomeric carbon in α -D-glucose is protonated by an acid. The lone pair on the ring helps in eliminating a molecule of water which results in the formation of oxocarbenium ion. It is planar molecule. When water approaches from the top of the plane, β -D-glucose is formed.

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Answer 1

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Chapter 21, Problem 43P

Interpretation Introduction

Interpretation:

The mechanism for interconversion of α-D-glucose and β-D-glucose in dilute HCl is to be drawn.

Concept Introduction:

The hydroxyl group of anomeric carbon in α-D-glucose is protonated by an acid. The lone pair on the ring helps in eliminating a molecule of water which results in the formation of oxocarbenium ion. It is planar molecule. When water approaches from the top of the plane, β-D-glucose is formed.

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Write down the structures and names of the products formed when D-glucose is treated with(i) Hydroxylamine(ii) Acetic anhydride.

Draw the mechanism for the interconversion of α-D-glucose and β-d-glucose in dilute HCl.

What is the type of glycosidic bond here?

Answer 2

Question

Chapter 21, Problem 43P

Interpretation Introduction

Interpretation:

The mechanism for interconversion of α-D-glucose and β-D-glucose in dilute HCl is to be drawn.

Concept Introduction:

The hydroxyl group of anomeric carbon in α-D-glucose is protonated by an acid. The lone pair on the ring helps in eliminating a molecule of water which results in the formation of oxocarbenium ion. It is planar molecule. When water approaches from the top of the plane, β-D-glucose is formed.

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Answer 3

Question

Chapter 21, Problem 43P

Interpretation Introduction

Interpretation:

The mechanism for interconversion of α-D-glucose and β-D-glucose in dilute HCl is to be drawn.

Concept Introduction:

The hydroxyl group of anomeric carbon in α-D-glucose is protonated by an acid. The lone pair on the ring helps in eliminating a molecule of water which results in the formation of oxocarbenium ion. It is planar molecule. When water approaches from the top of the plane, β-D-glucose is formed.

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Answer 4

Question

Chapter 21, Problem 43P

Interpretation Introduction

Interpretation:

The mechanism for interconversion of α-D-glucose and β-D-glucose in dilute HCl is to be drawn.

Concept Introduction:

The hydroxyl group of anomeric carbon in α-D-glucose is protonated by an acid. The lone pair on the ring helps in eliminating a molecule of water which results in the formation of oxocarbenium ion. It is planar molecule. When water approaches from the top of the plane, β-D-glucose is formed.

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Answer 5

Chapter 21, Problem 43P

Interpretation Introduction

Interpretation:

The mechanism for interconversion of α-D-glucose and β-D-glucose in dilute HCl is to be drawn.

Concept Introduction:

The hydroxyl group of anomeric carbon in α-D-glucose is protonated by an acid. The lone pair on the ring helps in eliminating a molecule of water which results in the formation of oxocarbenium ion. It is planar molecule. When water approaches from the top of the plane, β-D-glucose is formed.

Answer 6

Chapter 21, Problem 43P

Interpretation Introduction

Interpretation:

The mechanism for interconversion of α-D-glucose and β-D-glucose in dilute HCl is to be drawn.

Concept Introduction:

The hydroxyl group of anomeric carbon in α-D-glucose is protonated by an acid. The lone pair on the ring helps in eliminating a molecule of water which results in the formation of oxocarbenium ion. It is planar molecule. When water approaches from the top of the plane, β-D-glucose is formed.

Answer 7

Chapter 21, Problem 43P

Interpretation Introduction

Interpretation:

The mechanism for interconversion of α-D-glucose and β-D-glucose in dilute HCl is to be drawn.

Concept Introduction:

The hydroxyl group of anomeric carbon in α-D-glucose is protonated by an acid. The lone pair on the ring helps in eliminating a molecule of water which results in the formation of oxocarbenium ion. It is planar molecule. When water approaches from the top of the plane, β-D-glucose is formed.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 21.1 - Prob. 1P Ch. 21.2 - Prob. 2P Ch. 21.2 - Prob. 3P Ch. 21.3 - Prob. 4P Ch. 21.3 - Prob. 5P Ch. 21.3 - Prob. 6P Ch. 21.4 - Prob. 7P Ch. 21.4 - Prob. 8P Ch. 21.5 - Prob. 9P Ch. 21.5 - Prob. 10P

Solution Summary: The author explains the mechanism for interconversion of alpha -D-glucose and

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Chapter 21 Solutions