Chapter 24.5, Problem 12LTS

(a)

Interpretation Introduction

Interpretation:

The Haworth projection for each of the given compounds are needed to be drawn.

Concept introduction:

• Haworth projection is used to represent sugars in their cyclic forms.
• In Haworth projection,
  • α-indicates the –OH group of anomeric carbon C1 and ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is trans to each other.
  • D indicates the ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is on up position.
  • The right side and left side –OH groups of chiral carbons in fisher projection are drawn as down side and upward side respectively.

To draw: the Haworth projection for the given compound (a).

(b)

Interpretation Introduction

Interpretation:

The Haworth projection for each of the given compounds are needed to be drawn.

Concept introduction:

• Haworth projection is used to represent sugars in their cyclic forms.
• In Haworth projection,
  • α-indicates the –OH group of anomeric carbon C1 and ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is trans to each other.
  • D indicates the ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is on up position.
  • The right side and left side –OH groups of chiral carbons in fisher projection are drawn as down side and upward side respectively.

To draw: the Haworth projection for the given compound (b).

(c)

Interpretation Introduction

Interpretation:

The Haworth projection for each of the given compounds are needed to be drawn.

Concept introduction:

• Haworth projection is used to represent sugars in their cyclic forms.
• In Haworth projection,
  • α-indicates the –OH group of anomeric carbon C1 and ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is trans to each other.
  • D indicates the ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is on up position.
  • The right side and left side –OH groups of chiral carbons in fisher projection are drawn as down side and upward side respectively.

To draw: the Haworth projection for the given compound (c).

(d)

Interpretation Introduction

Interpretation:

The Haworth projection for each of the given compounds are needed to be drawn.

Concept introduction:

• Haworth projection is used to represent sugars in their cyclic forms.
• In Haworth projection,
  • α-indicates the –OH group of anomeric carbon C1 and ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is trans to each other.
  • D indicates the ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is on up position.
  • The right side and left side –OH groups of chiral carbons in fisher projection are drawn as down side and upward side respectively.

To draw: the Haworth projection for the given compound (d).

 (e)

Interpretation Introduction

Interpretation:

The Haworth projection for each of the given compounds are needed to be drawn.

Concept introduction:

• Haworth projection is used to represent sugars in their cyclic forms.
• In Haworth projection,
  • α-indicates the –OH group of anomeric carbon C1 and ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is trans to each other.
  • D indicates the ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is on up position.
  • The right side and left side –OH groups of chiral carbons in fisher projection are drawn as down side and upward side respectively.

To draw: the Haworth projection for the given compound (e).

(f)

Interpretation Introduction

Interpretation:

The Haworth projection for each of the given compounds are needed to be drawn.

Concept introduction:

• Haworth projection is used to represent sugars in their cyclic forms.
• In Haworth projection,
  • α-indicates the –OH group of anomeric carbon C1 and ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is trans to each other.
  • D indicates the ${\text{-CH}}_{\text{2}}\text{OH}$ substituent on the C5 carbon is on up position.
  • The right side and left side –OH groups of chiral carbons in fisher projection are drawn as down side and upward side respectively.

To draw: the Haworth projection for the given compound (f).