Sodium acetylide undergoes addition reaction with ketones to give an alcohol. How this reaction can be used to prepare 1,3-butadiene is to be shown. Concept introduction: Acetylides undergo addition reaction with ketones to give an ynol. The ynol can be dehydrated by warming with dilute H 2 SO 4 to an enyne. The enyne is reduced with H 2 in the presence of Lindlar catalyst when the triple bond alone gets reduced to a double bond resulting in a diene. To show: How the reaction, the addition of alkynes to ketones to give an alcohol, can be used to prepare 1,3-butadiene.

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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.SE, Problem 50AP

Interpretation Introduction

Interpretation:

Sodium acetylide undergoes addition reaction with ketones to give an alcohol. How this reaction can be used to prepare 1,3-butadiene is to be shown.

Concept introduction:

Acetylides undergo addition reaction with ketones to give an ynol. The ynol can be dehydrated by warming with dilute H₂SO₄ to an enyne. The enyne is reduced with H₂ in the presence of Lindlar catalyst when the triple bond alone gets reduced to a double bond resulting in a diene.

To show:

How the reaction, the addition of alkynes to ketones to give an alcohol, can be used to prepare 1,3-butadiene.

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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.SE, Problem 50AP

Interpretation Introduction

Interpretation:

Sodium acetylide undergoes addition reaction with ketones to give an alcohol. How this reaction can be used to prepare 1,3-butadiene is to be shown.

Concept introduction:

Acetylides undergo addition reaction with ketones to give an ynol. The ynol can be dehydrated by warming with dilute H₂SO₄ to an enyne. The enyne is reduced with H₂ in the presence of Lindlar catalyst when the triple bond alone gets reduced to a double bond resulting in a diene.

To show:

How the reaction, the addition of alkynes to ketones to give an alcohol, can be used to prepare 1,3-butadiene.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

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.SE, Problem 50AP

Interpretation Introduction

Interpretation:

Sodium acetylide undergoes addition reaction with ketones to give an alcohol. How this reaction can be used to prepare 1,3-butadiene is to be shown.

Concept introduction:

Acetylides undergo addition reaction with ketones to give an ynol. The ynol can be dehydrated by warming with dilute H₂SO₄ to an enyne. The enyne is reduced with H₂ in the presence of Lindlar catalyst when the triple bond alone gets reduced to a double bond resulting in a diene.

To show:

How the reaction, the addition of alkynes to ketones to give an alcohol, can be used to prepare 1,3-butadiene.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

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.SE, Problem 50AP

Interpretation Introduction