ORGANIC CHEMISTRY
ORGANIC CHEMISTRY
9th Edition
ISBN: 9780134645704
Author: WADE AND SIMEK
Publisher: PEARSON
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Chapter 15, Problem 15.24SP

(a)

Interpretation Introduction

Interpretation: The class of given cycloocta-1,4-diene as isolated, conjugated, cumulated, or a combination is to be stated.

Concept introduction: Conjugated systems have alternate single and double bonds that results in lower the energy and increase the stability of a molecule. Isolated dienes or polyenes are the compounds that comprise double bonds at the large distances separated by more than one single bond, whereas cumulated dienes or polyenes are the compounds that do not possess any single bond in between the two double bonds.

(a)

Expert Solution
Check Mark

Answer to Problem 15.24SP

The given compound is classified as isolated diene.

Explanation of Solution

The structure of given diene is shown in figure 1.

ORGANIC CHEMISTRY, Chapter 15, Problem 15.24SP , additional homework tip  1

Figure 1

It is conferred from the above structure of cycloocta1,4diene that double bonds are present at large distance and it is separated by more than one single bond. Therefore, it is classified as isolated diene.

(b)

Interpretation Introduction

Interpretation: The class of given cycloocta-1,3-diene as isolated, conjugated, cumulated, or a combination is to be stated.

Concept introduction: Conjugated systems have alternate single and double bonds that results in lower the energy and increase the stability of a molecule. Isolated dienes or polyenes are the compounds that comprise double bonds at the large distances separated by more than one single bond, whereas cumulated dienes or polyenes are the compounds that do not possess any single bond in between the two double bonds.

(b)

Expert Solution
Check Mark

Answer to Problem 15.24SP

The given compound is classified as conjugated diene.

Explanation of Solution

The structure of given diene is shown in figure 2.

ORGANIC CHEMISTRY, Chapter 15, Problem 15.24SP , additional homework tip  2

Figure 2

It is conferred from the above structure of cycloocta1,3diene that double bonds are separated by one single bond. Therefore, it is classified as conjugated diene.

(c)

Interpretation Introduction

Interpretation: The class of given cycloocta-1,2-diene as isolated, conjugated, cumulated, or a combination is to be stated.

Concept introduction: Conjugated systems have alternate single and double bonds that results in lower the energy and increase the stability of a molecule. Isolated dienes or polyenes are the compounds that comprise double bonds at the large distances separated by more than one single bond, whereas cumulated dienes or polyenes are the compounds that do not possess any single bond in between the two double bonds.

(c)

Expert Solution
Check Mark

Answer to Problem 15.24SP

The given compound is classified as cumulated diene.

Explanation of Solution

The structure of given diene is shown in figure 3.

ORGANIC CHEMISTRY, Chapter 15, Problem 15.24SP , additional homework tip  3

Figure 3

It is conferred from the above structure of cycloocta1,2diene that there is no distance between two double bonds and single bond is not present in between them. Therefore, it is classify as cumulated diene.

(d)

Interpretation Introduction

Interpretation: The class of given cycloocta-1,2,5,7-tetraene as isolated, conjugated, cumulated, or a combination is to be stated.

Concept introduction: Conjugated systems have alternate single and double bonds that results in lower the energy and increase the stability of a molecule. Isolated dienes or polyenes are the compounds that comprise double bonds at the large distances separated by more than one single bond, whereas cumulated dienes or polyenes are the compounds that do not possess any single bond in between the two double bonds.

(d)

Expert Solution
Check Mark

Answer to Problem 15.24SP

The given compound is classified as conjugated polyene.

Explanation of Solution

The structure of given polyene is shown in figure 4.

ORGANIC CHEMISTRY, Chapter 15, Problem 15.24SP , additional homework tip  4

Figure 4

It is conferred from the above structure of cycloocta1,3,5,7tetraene that double bonds are separated by only one single bond. Therefore, it is classify as conjugated polyene.

(e)

Interpretation Introduction

Interpretation: The class of given cyclohexa-1,3,5-triene as isolated, conjugated, cumulated, or a combination is to be stated.

Concept introduction: Conjugated systems have alternate single and double bonds that results in lower the energy and increase the stability of a molecule. Isolated dienes or polyenes are the compounds that comprise double bonds at the large distances separated by more than one single bond, whereas cumulated dienes or polyenes are the compounds that do not possess any single bond in between the two double bonds.

(e)

Expert Solution
Check Mark

Answer to Problem 15.24SP

The given compound is classified as conjugated polyene.

Explanation of Solution

The structure of the given polyene is shown in figure 5.

ORGANIC CHEMISTRY, Chapter 15, Problem 15.24SP , additional homework tip  5

Figure 5

It is conferred from the above structure of cyclohexa1,3,5triene that double bonds are separated by only one single bond. Therefore, it is classified as conjugated polyene.

(f)

Interpretation Introduction

Interpretation: The class of given penta-1,2-4-triene as isolated, conjugated, cumulated, or a combination is to be stated.

Concept introduction: Conjugated systems have alternate single and double bonds that results in lower the energy and increase the stability of a molecule. Isolated dienes or polyenes are the compounds that comprise double bonds at the large distances separated by more than one single bond, whereas cumulated dienes or polyenes are the compounds that do not possess any single bond in between the two double bonds.

(f)

Expert Solution
Check Mark

Answer to Problem 15.24SP

The given compound is classified as cumulated and conjugated polyene.

Explanation of Solution

The structure of given polyene is shown in figure 6.

ORGANIC CHEMISTRY, Chapter 15, Problem 15.24SP , additional homework tip  6

Figure 6

It is conferred from the above structure of penta1,2,4triene that two double bonds are not separated by any bond and two double bonds are separated by one single bond. Therefore, it is classified as cumulated and conjugated polyene.

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