Draw the carbocation intermediate that must be generated to produce aldehyde from the acid-catalyzed hydration of ethynylbenzene. Explain why it is less stable than the carbocation intermediate shown in equation 11-21. Concept introduction: In order to form an aldehyde, there must be formation of a bond between one of two carbon atoms of ethyl group and O from water. The two carbon atoms are terminal and internal. This in turn depends on the carbon atom on which the carbocation is formed due to the first step of electrophilic addition.

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Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 11, Problem 11.10YT

Interpretation Introduction

Interpretation:

Draw the carbocation intermediate that must be generated to produce aldehyde from the acid-catalyzed hydration of ethynylbenzene. Explain why it is less stable than the carbocation intermediate shown in equation 11-21.

Concept introduction:

In order to form an aldehyde, there must be formation of a bond between one of two carbon atoms of ethyl group and O from water. The two carbon atoms are terminal and internal. This in turn depends on the carbon atom on which the carbocation is formed due to the first step of electrophilic addition.

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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 aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 11, Problem 11.10YT

Interpretation Introduction

Interpretation:

Draw the carbocation intermediate that must be generated to produce aldehyde from the acid-catalyzed hydration of ethynylbenzene. Explain why it is less stable than the carbocation intermediate shown in equation 11-21.

Concept introduction:

In order to form an aldehyde, there must be formation of a bond between one of two carbon atoms of ethyl group and O from water. The two carbon atoms are terminal and internal. This in turn depends on the carbon atom on which the carbocation is formed due to the first step of electrophilic addition.

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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 aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 11, Problem 11.10YT

Interpretation Introduction

Interpretation:

Draw the carbocation intermediate that must be generated to produce aldehyde from the acid-catalyzed hydration of ethynylbenzene. Explain why it is less stable than the carbocation intermediate shown in equation 11-21.

Concept introduction:

In order to form an aldehyde, there must be formation of a bond between one of two carbon atoms of ethyl group and O from water. The two carbon atoms are terminal and internal. This in turn depends on the carbon atom on which the carbocation is formed due to the first step of electrophilic addition.

Expert Solution & Answer

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Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 11, Problem 11.10YT

Interpretation Introduction