(a) Interpretation: The enantiomer of D-fructose is to be drawn. Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L -sugar and D -sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

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Answer 1

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

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A Fischer projection of a monosaccharide is shown below: H CH₂OH -OH H H HO C=O -OH -OH -H CH₂OH a. Classify this monosaccharide (e.g., aldotriose) b. Does it have the D or L configuration? c. Which carbon and oxygen become bonded in the furanose ring form of this monosaccharide (e.g., C206, where 06 means the oxygen on carbon 6, or "not formed")? d. Which carbon and oxygen become bonded in the pyranose ring form of this monosaccharide e.g., C206 or "not formed"?

What is the configuration of each of the asymmetric centers in the Fischer projection of a. D-glucose? b. D-galactose? c. D-ribose? d.D-xylose? e.D-sorbose?

A Fischer projection of a monosaccharide is shown below: CH₂OH C=O H НО HO -OH H H CH₂OH a. Classify this monosaccharide (e.g., aldotriose) b. Does it have the D or L configuration? c. Which carbon and oxygen become bonded in the furanose ring form of this monosaccharide (e.g., C206, where 06 means the oxygen on carbon 6, or "not formed")? d. Which carbon and oxygen become bonded in the pyranose ring form of this monosaccharide e.g., C206 or "not formed"?

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

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Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Expert Solution & Answer

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See solution

Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

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Answer 5

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Answer 6

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Answer 7

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Answer 8

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Answer 9

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Answer 10

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Answer 11

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 26.2 - Prob. 1P Ch. 26.2 - Prob. 2P Ch. 26.2 - Label each stereogenic center as R or S. a. b. c....Ch. 26.2 - Convert the ball-and-stick model to a Fischer...Ch. 26.2 - Prob. 5P Ch. 26.2 - Prob. 6P Ch. 26.3 - Prob. 7P Ch. 26.3 - Prob. 8P Ch. 26.4 - Prob. 9P Ch. 26.4 - Prob. 10P

Solution Summary: The author explains that the enantiomer of D-fructose is shown in Figure 1.

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Chapter 26 Solutions