ORG.CHEM.WILEYPLUSNEXTGEN.W/LLTEXT+STDY.
ORG.CHEM.WILEYPLUSNEXTGEN.W/LLTEXT+STDY.
4th Edition
ISBN: 9781119832638
Author: Klein
Publisher: WILEY
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Chapter 24.2, Problem 5CC

(a)

Interpretation Introduction

Interpretation:

For the two stereo isomeric ketotetroses, the structure, stereo isomeric relationship and stereo disrupters are needed to be determined.

Concept introduction:

  • Ketoses are monosaccharides, which contains ketone group.
  • The naming of monosaccharides,
    • Prefix: aldo or keto indicates whether the monosaccharide is containing aldehyde or ketone group.
    • Suffix: ose indicates the carbohydrates
    • Root word: indicate the number of carbons.
  • The stereo-descriptor used for monosaccharides is D or L. it is based on the dextrorotatory glyceraldehyde or levorotatory glyceraldehyde.

    ORG.CHEM.WILEYPLUSNEXTGEN.W/LLTEXT+STDY., Chapter 24.2, Problem 5CC , additional homework tip  1

  • Enantiomers are non-super imposable mirror images of each other.

To determine: the structure of two stereo isomeric ketotetroses.

ORG.CHEM.WILEYPLUSNEXTGEN.W/LLTEXT+STDY., Chapter 24.2, Problem 5CC , additional homework tip  2

(b)

Interpretation Introduction

Interpretation:

For the two stereo isomeric ketotetroses, the structure, stereo isomeric relationship and stereo disrupters are needed to be determined.

Concept introduction:

  • Ketoses are monosaccharides, which contains ketone group.
  • The naming of monosaccharides,
    • Prefix: aldo or keto indicates whether the monosaccharide is containing aldehyde or ketone group.
    • Suffix: ose indicates the carbohydrates
    • Root word: indicate the number of carbons.
  • The stereo-descriptor used for monosaccharides is D or L. it is based on the dextrorotatory glyceraldehyde or levorotatory glyceraldehyde.

    ORG.CHEM.WILEYPLUSNEXTGEN.W/LLTEXT+STDY., Chapter 24.2, Problem 5CC , additional homework tip  3

  • Enantiomers are non-super imposable mirror images of each other.

To identify: the stereo isomeric relationship.

(c)

Interpretation Introduction

Interpretation:

For the two stereo isomeric ketotetroses, the structure, stereo isomeric relationship and stereo disrupters are needed to be determined.

Concept introduction:

  • Ketoses are monosaccharides, which contains ketone group.
  • The naming of monosaccharides,
    • Prefix: aldo or keto indicates whether the monosaccharide is containing aldehyde or ketone group.
    • Suffix: ose indicates the carbohydrates
    • Root word: indicate the number of carbons.
  • The stereo-descriptor used for monosaccharides is D or L. it is based on the dextrorotatory glyceraldehyde or levorotatory glyceraldehyde.

    ORG.CHEM.WILEYPLUSNEXTGEN.W/LLTEXT+STDY., Chapter 24.2, Problem 5CC , additional homework tip  4

  • Enantiomers are non-super imposable mirror images of each other.

To identify: the D sugar and L sugar from the two structures of stereo isomeric ketotetroses.

ORG.CHEM.WILEYPLUSNEXTGEN.W/LLTEXT+STDY., Chapter 24.2, Problem 5CC , additional homework tip  5

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Chapter 24 Solutions

ORG.CHEM.WILEYPLUSNEXTGEN.W/LLTEXT+STDY.

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