(a) Interpretation: The starting material required for the preparation of given imine is to be determined. Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

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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 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 21, Problem 21.23P

Interpretation Introduction

(a)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

Interpretation Introduction

(b)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

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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 21, Problem 21.23P

Interpretation Introduction

(a)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

Interpretation Introduction

(b)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

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Answer 3

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 21, Problem 21.23P

Interpretation Introduction

(a)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

Interpretation Introduction

(b)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

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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 21, Problem 21.23P

Interpretation Introduction

(a)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

Interpretation Introduction

(b)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

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Answer 5

Chapter 21, Problem 21.23P

Interpretation Introduction

(a)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

Interpretation Introduction

(b)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

Answer 6

Chapter 21, Problem 21.23P

Interpretation Introduction

(a)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

Answer 7

Chapter 21, Problem 21.23P

Interpretation Introduction

(a)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

Answer 8

Interpretation Introduction

(b)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

Answer 9

Interpretation Introduction

(b)

Interpretation: The starting material required for the preparation of given imine is to be determined.

Concept introduction: Aldehyde or ketone on reaction with primary amine forms imine. Imine is also known as Schiff base. The nucleophilic attack of primary amine on carbonyl carbon results in the formation of intermediate carbinolamine. This intermediate loses water to form an imine.

Answer 10

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Answer 12

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Answer 13

Ch. 21 - Rank the following compounds in order of...Ch. 21 - Prob. 21.2P Ch. 21 - Give the IUPAC name for each aldehyde.Ch. 21 - Prob. 21.4P Ch. 21 - Give the IUPAC name for each ketone.Ch. 21 - Prob. 21.6P Ch. 21 - Prob. 21.7P Ch. 21 - The boiling point of is significantly higher than...Ch. 21 - Which carbonyl group in each pair absorbs at a...Ch. 21 - Problem 21.10 Draw the structure of all...

Solution Summary: The author explains the starting material required for the preparation of a given imine.

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Chapter 21 Solutions