The structure of the product and an intermediate, when hydroboration-oxidation is applied to but − 2 − yne . Interpretation: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but − 2 − yne is to be shown. Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule in to ketone in the presence of disiamylborane and hydrogen peroxide through the two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

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Answer 1

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 9.9F, Problem 9.20P

(a)

Interpretation Introduction

To determine: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne.

Interpretation: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne is to be shown.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule in to ketone in the presence of disiamylborane and hydrogen peroxide through the two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

(b)

Interpretation Introduction

To determine: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne.

Interpretation: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne is to be stated.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule into ketone in the presence of disiamylborane and hydrogen peroxide through two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

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Answer 2

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 9.9F, Problem 9.20P

(a)

Interpretation Introduction

To determine: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne.

Interpretation: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne is to be shown.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule in to ketone in the presence of disiamylborane and hydrogen peroxide through the two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

(b)

Interpretation Introduction

To determine: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne.

Interpretation: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne is to be stated.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule into ketone in the presence of disiamylborane and hydrogen peroxide through two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

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Answer 3

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 9.9F, Problem 9.20P

(a)

Interpretation Introduction

To determine: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne.

Interpretation: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne is to be shown.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule in to ketone in the presence of disiamylborane and hydrogen peroxide through the two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

(b)

Interpretation Introduction

To determine: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne.

Interpretation: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne is to be stated.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule into ketone in the presence of disiamylborane and hydrogen peroxide through two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

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Answer 4

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 9.9F, Problem 9.20P

(a)

Interpretation Introduction

To determine: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne.

Interpretation: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne is to be shown.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule in to ketone in the presence of disiamylborane and hydrogen peroxide through the two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

(b)

Interpretation Introduction

To determine: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne.

Interpretation: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne is to be stated.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule into ketone in the presence of disiamylborane and hydrogen peroxide through two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

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Answer 5

Chapter 9.9F, Problem 9.20P

(a)

Interpretation Introduction

To determine: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne.

Interpretation: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne is to be shown.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule in to ketone in the presence of disiamylborane and hydrogen peroxide through the two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

(b)

Interpretation Introduction

To determine: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne.

Interpretation: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne is to be stated.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule into ketone in the presence of disiamylborane and hydrogen peroxide through two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

Answer 6

Chapter 9.9F, Problem 9.20P

(a)

Interpretation Introduction

To determine: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne.

Interpretation: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne is to be shown.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule in to ketone in the presence of disiamylborane and hydrogen peroxide through the two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

Answer 7

Chapter 9.9F, Problem 9.20P

(a)

Interpretation Introduction

To determine: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne.

Interpretation: The structure of the product and an intermediate, when hydroboration-oxidation is applied to but−2−yne is to be shown.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule in to ketone in the presence of disiamylborane and hydrogen peroxide through the two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

Answer 8

(b)

Interpretation Introduction

To determine: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne.

Interpretation: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne is to be stated.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule into ketone in the presence of disiamylborane and hydrogen peroxide through two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

Answer 9

(b)

Interpretation Introduction

To determine: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne.

Interpretation: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne is to be stated.

Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule into ketone in the presence of disiamylborane and hydrogen peroxide through two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 9.1 - a. Count the elements of unsaturation in...Ch. 9.2 - Prob. 9.2P Ch. 9.4B - What reaction would acetylene likely undergo if it...Ch. 9.6 - Prob. 9.4P Ch. 9.6 - Predict the products of the following acid-base...Ch. 9.7A - Solved Problem9-1 showed the synthesis of...Ch. 9.7A - Show how you might synthesize the following...Ch. 9.7B - Prob. 9.8P Ch. 9.7B - Show how you would synthesize...Ch. 9.8 - When 2,2-dibromo-1-phenylpropane is heated...

Solution Summary: The author explains how hydroboration-oxidation reactions convert an alkyne molecule into ketone in the presence of disiamylborane and hydrogen peroxide.

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