a) Interpretation: The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone is to be stated. Concept introduction: Addition of water to triple bonds occurs to yield an enol initially as the product. The enol then tautomerizes to give a ketone as the final product. Terminal alkynes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product. To state: The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone.

Question

Synthesize the following from benzene.

Answer 1

Question

Chapter 9.4, Problem 5P

Interpretation Introduction

a)

Interpretation:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol then tautomerizes to give a ketone as the final product. Terminal alkynes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone.

b)

Interpretation Introduction

Interpretation:

The alkyne which can be used as a starting material for preparing diethyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol tautomerizes to give a ketone as the final product. Terminal alkenes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing diethyl ketone.

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Synthesize the following from benzene.

please answer both questions

Provide the major substitution product for the following reaction.

Answer 2

Question

Chapter 9.4, Problem 5P

Interpretation Introduction

a)

Interpretation:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol then tautomerizes to give a ketone as the final product. Terminal alkynes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone.

b)

Interpretation Introduction

Interpretation:

The alkyne which can be used as a starting material for preparing diethyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol tautomerizes to give a ketone as the final product. Terminal alkenes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing diethyl ketone.

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Answer 3

Question

Chapter 9.4, Problem 5P

Interpretation Introduction

a)

Interpretation:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol then tautomerizes to give a ketone as the final product. Terminal alkynes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone.

b)

Interpretation Introduction

Interpretation:

The alkyne which can be used as a starting material for preparing diethyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol tautomerizes to give a ketone as the final product. Terminal alkenes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing diethyl ketone.

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Answer 4

Question

Chapter 9.4, Problem 5P

Interpretation Introduction

a)

Interpretation:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol then tautomerizes to give a ketone as the final product. Terminal alkynes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone.

b)

Interpretation Introduction

Interpretation:

The alkyne which can be used as a starting material for preparing diethyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol tautomerizes to give a ketone as the final product. Terminal alkenes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing diethyl ketone.

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Answer 5

Chapter 9.4, Problem 5P

Interpretation Introduction

a)

Interpretation:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol then tautomerizes to give a ketone as the final product. Terminal alkynes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone.

b)

Interpretation Introduction

Interpretation:

The alkyne which can be used as a starting material for preparing diethyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol tautomerizes to give a ketone as the final product. Terminal alkenes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing diethyl ketone.

Answer 6

Chapter 9.4, Problem 5P

Interpretation Introduction

a)

Interpretation:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol then tautomerizes to give a ketone as the final product. Terminal alkynes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone.

Answer 7

Chapter 9.4, Problem 5P

Interpretation Introduction

a)

Interpretation:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol then tautomerizes to give a ketone as the final product. Terminal alkynes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone.

Answer 8

b)

Interpretation Introduction

Interpretation:

The alkyne which can be used as a starting material for preparing diethyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol tautomerizes to give a ketone as the final product. Terminal alkenes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing diethyl ketone.

Answer 9

b)

Interpretation Introduction

Interpretation:

The alkyne which can be used as a starting material for preparing diethyl ketone is to be stated.

Concept introduction:

Addition of water to triple bonds occurs to yield an enol initially as the product. The enol tautomerizes to give a ketone as the final product. Terminal alkenes and symmetrically substituted internal alkynes yield only one product. Unsymmetrically substituted internal alkynes yield a mixture of ketones as product.

To state:

The alkyne which can be used as a starting material for preparing diethyl ketone.

Answer 10

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Answer 21

Ch. 9.1 - Prob. 1P Ch. 9.1 - Prob. 2P Ch. 9.3 - What products would you expect from the following...Ch. 9.4 - Prob. 4P Ch. 9.4 - Prob. 5P Ch. 9.4 - Prob. 6P Ch. 9.4 - Prob. 7P Ch. 9.5 - Using any alkyne needed, how would you prepare the...Ch. 9.7 - The pKa of acetone, CH3COCH3, is 19.3. Which of...Ch. 9.8 - Prob. 10P

Solution Summary: The author states that the alkyne can be used as a starting material for preparing methyl-n-propyl ketone.

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