(a) Interpretation: Whether the compound is hemiacetal, hemiketal or neither is to be identified. Concept introduction: The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Question

a) Label the hemiacetal in glucosamine, available in overthe-counter remedies for the treatment of osteoarthritis. (b) Label all the other functional groups in glucosamine.

Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 14, Problem 14.24E

Interpretation Introduction

(a)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(b)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(c)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(d)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

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a) Label the hemiacetal in glucosamine, available in overthe-counter remedies for the treatment of osteoarthritis. (b) Label all the other functional groups in glucosamine.

Cholic acid, a major constituent of bile, has the structure shown.(a) Draw the structure of cholic acid, showing the rings in their chairconformations, and label each methyl group and hydroxy group asaxial or equatorial. (Making a model may be helpful.)(b) Cholic acid is secreted in bile as an amide linked to the aminogroup of glycine. This cholic acid–amino acid combination acts asan emulsifying agent to disperse lipids in the intestines for easierdigestion. Draw the structure of the cholic acid–glycine combination,and explain why it is a good emulsifying agent.

Which of the following area. hemiacetals? b. acetals? c. hydrates?

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 14, Problem 14.24E

Interpretation Introduction

(a)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(b)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(c)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(d)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

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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 aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 14, Problem 14.24E

Interpretation Introduction

(a)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(b)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(c)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(d)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

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Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 14, Problem 14.24E

Interpretation Introduction

(a)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(b)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(c)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(d)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

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Answer 5

Chapter 14, Problem 14.24E

Interpretation Introduction

(a)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(b)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(c)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Interpretation Introduction

(d)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Answer 6

Chapter 14, Problem 14.24E

Interpretation Introduction

(a)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Answer 7

Chapter 14, Problem 14.24E

Interpretation Introduction

(a)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Answer 8

Interpretation Introduction

(b)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Answer 9

Interpretation Introduction

(b)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Answer 10

Interpretation Introduction

(c)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Answer 11

Interpretation Introduction

(c)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Answer 12

Interpretation Introduction

(d)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Answer 13

Interpretation Introduction

(d)

Interpretation:

Whether the compound is hemiacetal, hemiketal or neither is to be identified.

Concept introduction:

The compound which is formed by the reaction of an aldehyde with an alcohol is known as hemiacetal. The compound which is formed by the reaction of a ketone with an alcohol is known as hemiketal.

Answer 14

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Answer 25

Ch. 14 - Prob. 14.1E Ch. 14 - Prob. 14.2E Ch. 14 - Identify each of the following compounds as an...Ch. 14 - Identify each of the following compounds as an...Ch. 14 - Prob. 14.5E Ch. 14 - Prob. 14.6E Ch. 14 - Prob. 14.7E Ch. 14 - Prob. 14.8E Ch. 14 - Draw structural formulas and give IUPAC names for...Ch. 14 - Draw structural formulas and give IUPAC names for...

Solution Summary: The author explains that the compound is not identified as a hemiacetal.

Concept explainers

Chapter 14 Solutions