Chapter 21, Problem 30A

a)

Interpretation Introduction

Interpretation:

The straight-chain structure of the given molecule should be stated.

Concept Introduction:

The systematic structure determination of organic compounds is given by IUPAC. The name of the organic compound is determined from the structure that is by analyzing the position of groups substituted on it.

Answer to Problem 30A

The straight-chain structure of the monosaccharide glucoseis:

  

Explanation of Solution

Glucose is a carbohydrate which is a hexose. The straight-chain structurecontains 6 carbon atoms, aldehyde at 1st position and then 2,3,4,5 and 6 position contains OH group. The second position carbon is the anomeric carbon center which has a different configuration than the other OH.

  

b)

Interpretation Introduction

Interpretation:

The straight-chain structure of the given molecule should be stated.

Concept Introduction:

The systematic structure determination of organic compounds is given by IUPAC. The name of the organic compound is determined from the structure that is by analyzing the position of groups substituted on it.

Answer to Problem 30A

The straight-chain structure of the monosaccharide ribose is:

  

Explanation of Solution

Ribulose is a carbohydrate that is pentose. A straight-chain structure of 5 carbon atomcontains ketone at 2nd position and then 1,3,4, and 5 position contains OH group.The second position carbon is an anomeric carbon center which has a different configuration than the other OH.

  

c)

Interpretation Introduction

Interpretation:

The straight-chain structure of the given molecule should be stated.

Concept Introduction:

The systematic structure determination of organic compounds is given by IUPAC. The name of the organic compound is determined from the structure that is by analyzing the position of groups substituted on it.

Answer to Problem 30A

The straight-chain structure of the monosaccharide ribulose is:

  

Explanation of Solution

Ribulose is a carbohydrate that is pentose. A straight-chain structure of 5 carbon atomcontains ketone at 2nd position and then 1,3,4, and 5 position contains OH group.The third position carbon is an anomeric carbon center which has a different configuration than the other OH.

  

d)

Interpretation Introduction

Interpretation:

The straight-chain structure of the given molecule should be stated.

Concept Introduction:

The systematic structure determination of organic compounds is given by IUPAC. The name of the organic compound is determined from the structure that is by analyzing the position of groups substituted on it.

Answer to Problem 30A

The straight-chain structure of the monosaccharide galactose is:

  

Explanation of Solution

Galactose is a carbohydratethat is a hexose. A straight-chain structure contains 6 carbon atoms, aldehyde at 1st position and then 2,3,4,5 and 6 position contains OH group. The second position carbon and 4th position carbon have the same configuration while 3rd and 5th carbon atom hasthe same configuration