The structure of the given sugar β -D-galactopyranose is to be drawn by using Haworth projections. Concept Introduction: Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words, “A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

Question

Draw the products formed when B-D-galactose is treated with each reagent. a. Ag,0 + CH3I b. NaH + CgHsCH2CI c. The product in (b), then H30* d. Ac20 + pyridine e. CeHsCOCI + pyridine f. The product in (c), then CgHsCOCI + pyridine

Answer 1

Question

Chapter 21.10, Problem 20P

a)

Interpretation Introduction

Interpretation:

The structure of the given sugar β-D-galactopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

b)

Interpretation Introduction

Interpretation:

The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

c)

Interpretation Introduction

Interpretation: The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

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Draw the products formed when B-D-galactose is treated with each reagent. a. Ag,0 + CH3I b. NaH + CgHsCH2CI c. The product in (b), then H30* d. Ac20 + pyridine e. CeHsCOCI + pyridine f. The product in (c), then CgHsCOCI + pyridine

1.Explain what is anomeric effect and why it happens? 2.Explain how a glycosyl acetimidate can loss its glycosyl donor activity?

Draw the following sugars using Haworth projections: b. a-D-tagatopyranose a. c. B-D-galactopyranose c. a-L-glucopyranose

Answer 2

Question

Chapter 21.10, Problem 20P

a)

Interpretation Introduction

Interpretation:

The structure of the given sugar β-D-galactopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

b)

Interpretation Introduction

Interpretation:

The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

c)

Interpretation Introduction

Interpretation: The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

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Answer 3

Question

Chapter 21.10, Problem 20P

a)

Interpretation Introduction

Interpretation:

The structure of the given sugar β-D-galactopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

b)

Interpretation Introduction

Interpretation:

The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

c)

Interpretation Introduction

Interpretation: The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

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Answer 4

Question

Chapter 21.10, Problem 20P

a)

Interpretation Introduction

Interpretation:

The structure of the given sugar β-D-galactopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

b)

Interpretation Introduction

Interpretation:

The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

c)

Interpretation Introduction

Interpretation: The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

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Answer 5

Chapter 21.10, Problem 20P

a)

Interpretation Introduction

Interpretation:

The structure of the given sugar β-D-galactopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

b)

Interpretation Introduction

Interpretation:

The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

c)

Interpretation Introduction

Interpretation: The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

Answer 6

Chapter 21.10, Problem 20P

a)

Interpretation Introduction

Interpretation:

The structure of the given sugar β-D-galactopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

Answer 7

Chapter 21.10, Problem 20P

a)

Interpretation Introduction

Interpretation:

The structure of the given sugar β-D-galactopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

Answer 8

b)

Interpretation Introduction

Interpretation:

The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

Answer 9

b)

Interpretation Introduction

Interpretation:

The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

Answer 10

c)

Interpretation Introduction

Interpretation: The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

Answer 11

c)

Interpretation Introduction

Interpretation: The structure of the given sugar α-D-tagatopyranose is to be drawn by using Haworth projections.

Concept Introduction:

Haworth projections are used to represent the cyclic structures of the monosaccharides. In other words,

“A common way of writing a structural formula to represent the cyclic structure of monosaccharide with a simple three-dimensional perspective is called Haworth projection”.

Answer 12

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Answer 23

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 that Haworth projections are used to represent the cyclic structures of the monosaccharides.

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Chapter 21 Solutions