a) Interpretation: The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene is to be given. Concept introduction: Alkenes react with H 2 in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene. To give: The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene.

Question

When the given reactions below are done once, which of the following reactions is used to prepare dihalogenated alkyl halides as major products? Select one: O Reaction of ethane with Cl₂ in the presence of light Reaction of ethene with HBr Reaction of ethyne with two moles of HCI Reaction of ethene with Br₂ in H₂O

Answer 1

Question

Chapter 8.6, Problem 12P

Interpretation Introduction

a)

Interpretation:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene.

Interpretation Introduction

b)

Interpretation:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene.

Interpretation Introduction

c)

Interpretation:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene.

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When the given reactions below are done once, which of the following reactions is used to prepare dihalogenated alkyl halides as major products? Select one: O Reaction of ethane with Cl₂ in the presence of light Reaction of ethene with HBr Reaction of ethyne with two moles of HCI Reaction of ethene with Br₂ in H₂O

What organic product would you obtain from reaction of 1-pentanol with CrO3, H2O, H2SO4?

3-Hexanone can be synthesized from butanal and ethane using a Grignard reaction. The first step must be O creation of a carbocation O protonation of an oxygen nucleophilic attack of the aldehyde free radical halogenation preparation of an acetylide

Answer 2

Question

Chapter 8.6, Problem 12P

Interpretation Introduction

a)

Interpretation:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene.

Interpretation Introduction

b)

Interpretation:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene.

Interpretation Introduction

c)

Interpretation:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene.

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Answer 3

Question

Chapter 8.6, Problem 12P

Interpretation Introduction

a)

Interpretation:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene.

Interpretation Introduction

b)

Interpretation:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene.

Interpretation Introduction

c)

Interpretation:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene.

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Answer 4

Question

Chapter 8.6, Problem 12P

Interpretation Introduction

a)

Interpretation:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene.

Interpretation Introduction

b)

Interpretation:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene.

Interpretation Introduction

c)

Interpretation:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene.

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Answer 5

Chapter 8.6, Problem 12P

Interpretation Introduction

a)

Interpretation:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene.

Interpretation Introduction

b)

Interpretation:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene.

Interpretation Introduction

c)

Interpretation:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene.

Answer 6

Chapter 8.6, Problem 12P

Interpretation Introduction

a)

Interpretation:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene.

Answer 7

Chapter 8.6, Problem 12P

Interpretation Introduction

a)

Interpretation:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 2-methyl-2-pentene.

Answer 8

Interpretation Introduction

b)

Interpretation:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene.

Answer 9

Interpretation Introduction

b)

Interpretation:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3,3-dimethylcyclopentene.

Answer 10

Interpretation Introduction

c)

Interpretation:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene.

Answer 11

Interpretation Introduction

c)

Interpretation:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene is to be given.

Concept introduction:

Alkenes react with H₂ in the presence of metal catalysts such as palladium or platinum to yield the corresponding alkanes as the products. The addition occurs with syn stereochemistry. Normally only a single product is produced as the catalyst will interact only from the least hindered and most accessible face of the alkene.

To give:

The product obtained by the catalytic hydrogenation of 3-tert-butylcyclohexene.

Answer 12

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Answer 23

Ch. 8.1 - Prob. 1P Ch. 8.1 - How many alkene products, including E,Z isomers,...Ch. 8.2 - Prob. 3P Ch. 8.2 - Addition of HCl to 1, 2-dimethylcyclohexene yields...Ch. 8.3 - Prob. 5P Ch. 8.3 - Prob. 6P Ch. 8.4 - Prob. 7P Ch. 8.4 - From what alkenes might the following alcohols...Ch. 8.5 - Prob. 9P Ch. 8.5 - What alkenes might be used to prepare the...

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