(a) Interpretation: The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry. Concept introduction: The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

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Answer 1

Question

Chapter 24, Problem 24.16P

Interpretation Introduction

(a)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

Interpretation Introduction

(b)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

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4. Draw and label all possible isomers for [M(py)3(DMSO)2(CI)] (py = pyridine, DMSO dimethylsulfoxide).

The emission data in cps displayed in Table 1 is reported to two decimal places by the chemist. However, the instrument output is shown in Table 2. Table 2. Iron emission from ICP-AES Sample Blank Standard Emission, cps 579.503252562 9308340.13122 Unknown Sample 343.232365741 Did the chemist make the correct choice in how they choose to display the data up in Table 1? Choose the best explanation from the choices below. No. Since the instrument calculates 12 digits for all values, they should all be kept and not truncated. Doing so would eliminate significant information. No. Since the instrument calculates 5 decimal places for the standard, all of the values should be limited to the same number. The other decimal places are not significant for the blank and unknown sample. Yes. The way Saman made the standards was limited by the 250-mL volumetric flask. This glassware can report values to 2 decimal places, and this establishes our number of significant figures. Yes. Instrumental data…

Answer 2

Question

Chapter 24, Problem 24.16P

Interpretation Introduction

(a)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

Interpretation Introduction

(b)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

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Answer 3

Question

Chapter 24, Problem 24.16P

Interpretation Introduction

(a)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

Interpretation Introduction

(b)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

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Answer 4

Question

Chapter 24, Problem 24.16P

Interpretation Introduction

(a)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

Interpretation Introduction

(b)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

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Answer 5

Chapter 24, Problem 24.16P

Interpretation Introduction

(a)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

Interpretation Introduction

(b)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

Answer 6

Chapter 24, Problem 24.16P

Interpretation Introduction

(a)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

Answer 7

Chapter 24, Problem 24.16P

Interpretation Introduction

(a)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The mechanism and the major product of the given reaction is to be drawn, without considering the stereochemistry.

Concept introduction:

The two new sigma bonds fomraton take place by joining a conjugated diene and a dienophile is known as the Diels-Alder reaction (also known as [4+2] cycloaddition). The product is a six-membered ring. The Diels-Alder reaction is concerted, that is, the process of bond breaking and bond formation occurs simultaneously. For a Diels-Alder reaction to take place, the diene must be able to attain the s-cis conformation. Diels-Alder reactions cannot take place with the diene in the s-trans conformation. Electron-donating groups attached to the diene and electron-withdrawing groups attached to the dienophile facilitates the reaction. These reactions are highly regioselective and stereospecific. Substituents that are cis to each other about the carbon-carbon double bond of the dienophile end up cis to each other in the new ring that is produced. Otherwise, the substituents end up trans to each other in the ring. Substituents attached to the terminal carbons of the diene end up cis to each other in the new ring that is produced if the double bonds of the diene are both cis or both trans. Otherwise, the substituents end up trans to each other in the ring. When the diene and dienophile are both unsymmetric, two isomeric products can be produced.

Answer 10

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Ch. 24 - Prob. 24.1P Ch. 24 - Prob. 24.2P Ch. 24 - Prob. 24.3P Ch. 24 - Prob. 24.4P Ch. 24 - Prob. 24.5P Ch. 24 - Prob. 24.6P Ch. 24 - Prob. 24.7P Ch. 24 - Prob. 24.8P Ch. 24 - Prob. 24.9P Ch. 24 - Prob. 24.10P

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Chapter 24 Solutions