The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted. Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C 1 - C 2 bond.

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Chapter 28, Problem 28.53P

Interpretation Introduction

Interpretation: The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.

Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C1-C2 bond.

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What two aldohexoses yield D-arabinose upon Wohl degradation?

1. Draw Haworth projections of B-D-arabinofuranose and a-L-mannopyranose. 2. Consider the structure of the disaccharide drawn at right: НО `CH2 В ОН (a) Give the names and D/L designation for the two monosaccharides linked together. H,C-O OHO „OH OH А: НО НО A В: ОН (b) In the structure, circle the anomeric carbon of each saccharide. (c) Is each saccharide present in its a or ß anomer? Specify both A and B (d) Would this disaccharide undergo mutarotation? Why or why not? (e) Would this disaccharide react with Tollens and/or Benedicts reagent? Why or why not? (f) There are two reasons this is very unlikely to be a naturally occurring disaccharide. What about its structure suggests this is true? Give both reasons.

(d) Draw the structure of the expected product when monosaccharide B undergo mutarotation upon dissolving in water in the presence of Tollens reagent (AGNO3, NHẠOH). он OH O. OH OH OH monosaccharide B

Answer 2

Question

Chapter 28, Problem 28.53P

Interpretation Introduction

Interpretation: The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.

Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C1-C2 bond.

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Answer 3

Question

Chapter 28, Problem 28.53P

Interpretation Introduction

Interpretation: The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.

Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C1-C2 bond.

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Answer 4

Question

Chapter 28, Problem 28.53P

Interpretation Introduction

Interpretation: The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.

Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C1-C2 bond.

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Answer 5

Chapter 28, Problem 28.53P

Interpretation Introduction

Interpretation: The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.

Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C1-C2 bond.

Answer 6

Chapter 28, Problem 28.53P

Interpretation Introduction

Interpretation: The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.

Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C1-C2 bond.

Answer 7

Chapter 28, Problem 28.53P

Interpretation Introduction

Interpretation: The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.

Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C1-C2 bond.

Answer 8

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Answer 11

Ch. 28 - Prob. 28.1P Ch. 28 - Prob. 28.2P Ch. 28 - Label each stereogenic center as R or S. a. b. c....Ch. 28 - Convert the ball-and-stick model to a Fischer...Ch. 28 - Prob. 28.5P Ch. 28 - Prob. 28.6P Ch. 28 - Prob. 28.7P Ch. 28 - Prob. 28.8P Ch. 28 - Prob. 28.9P Ch. 28 - Prob. 28.10P

The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted. Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C 1 - C 2 bond.

Solution Summary: The author explains that the two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.

Concept explainers

Interpretation: The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.

Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C1-C2 bond.

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Chapter 28 Solutions

The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted. Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C 1 - C 2 bond.

Solution Summary: The author explains that the two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.

Concept explainers

Interpretation: The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted. Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C1-C2 bond.

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Chapter 28 Solutions

Interpretation: The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.

Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of C1-C2 bond.