a) Interpretation: Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given. Concept introduction: Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other. To state: Whether the compound shown can be prepared by a mixed aldol reaction. To give: The reactants from which it can be prepared.

Question

Describe how the following compound can be prepared using an aldol addition in the first step of the synthesis:

Answer 1

Question

Chapter 23.5, Problem 8P

Interpretation Introduction

a)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Interpretation Introduction

b)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Interpretation Introduction

c)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

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Describe how the following compound can be prepared using an aldol addition in the first step of the synthesis:

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Predict the major products of the following base-catalyzed aldol condensations withdehydration.(a) benzophenone (PhCOPh) + propionaldehyd

Answer 2

Question

Chapter 23.5, Problem 8P

Interpretation Introduction

a)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Interpretation Introduction

b)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Interpretation Introduction

c)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

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Answer 3

Question

Chapter 23.5, Problem 8P

Interpretation Introduction

a)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Interpretation Introduction

b)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Interpretation Introduction

c)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

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Answer 4

Question

Chapter 23.5, Problem 8P

Interpretation Introduction

a)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Interpretation Introduction

b)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Interpretation Introduction

c)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

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Answer 5

Chapter 23.5, Problem 8P

Interpretation Introduction

a)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Interpretation Introduction

b)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Interpretation Introduction

c)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Answer 6

Chapter 23.5, Problem 8P

Interpretation Introduction

a)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Answer 7

Chapter 23.5, Problem 8P

Interpretation Introduction

a)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Answer 8

Interpretation Introduction

b)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Answer 9

Interpretation Introduction

b)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Answer 10

Interpretation Introduction

c)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Answer 11

Interpretation Introduction

c)

Interpretation:

Whether the compound shown can be prepared by a mixed aldol reaction is to be stated. Further the reactants from which it can be prepared are to be given.

Concept introduction:

Mixed aldol condensation leads to a single product if i) one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.

To state:

Whether the compound shown can be prepared by a mixed aldol reaction.

To give:

The reactants from which it can be prepared.

Answer 12

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Answer 23

Ch. 23.1 - Prob. 1P Ch. 23.1 - Prob. 2P Ch. 23.3 - Prob. 3P Ch. 23.3 - Prob. 4P Ch. 23.4 - Prob. 5P Ch. 23.4 - 1-Butanol is prepared commercially by a route that...Ch. 23.4 - Prob. 7P Ch. 23.5 - Prob. 8P Ch. 23.6 - Prob. 9P Ch. 23.6 - What product would you Expect to obtain from base...

Solution Summary: The author states that the compound can be prepared by a mixed aldol reaction between benzaldehyde and acetone.

Concept explainers

Chapter 23 Solutions