The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained. Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen. The anion so formed is reacted with an alkyl halide . The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

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Answer 1

Question

Chapter 18.18, Problem 39P

(a)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

(b)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

(c)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

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Answer 2

Question

Chapter 18.18, Problem 39P

(a)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

(b)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

(c)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

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Answer 3

Question

Chapter 18.18, Problem 39P

(a)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

(b)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

(c)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

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Answer 4

Question

Chapter 18.18, Problem 39P

(a)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

(b)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

(c)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

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Answer 5

Chapter 18.18, Problem 39P

(a)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

(b)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

(c)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

Answer 6

Chapter 18.18, Problem 39P

(a)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

Answer 7

Chapter 18.18, Problem 39P

(a)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

Answer 8

(b)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

Answer 9

(b)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

Answer 10

(c)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

Answer 11

(c)

Interpretation Introduction

Interpretation: The reason behind the given carboxylic acids cannot be prepared by a malonic ester synthesis has to be explained.

Concept introduction: Malonic ester synthesis is used to prepare carboxylic acids of the desired length. The malonic ester is reacted with an alkoxide base which removes a alpha hydrogen.

The anion so formed is reacted with an alkyl halide. The anion abstracts the alkyl group from the alkyl halide. On heating, decarboxylation takes place which gives the desired carboxylic acid.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 18.1 - Prob. 1P Ch. 18.1 - Prob. 2P Ch. 18.1 - Prob. 3P Ch. 18.1 - Prob. 4P Ch. 18.1 - PROBLEM 5♦ List the compounds in each of the...Ch. 18.2 - Explain why 92% of 2,4-pemtanedione exists as the...Ch. 18.3 - Draw the enol tautomers for each of the following...Ch. 18.3 - Prob. 8P Ch. 18.4 - Prob. 9P Ch. 18.4 - Prob. 10P

Solution Summary: The author explains that malonic ester synthesis is used to prepare carboxylic acids of the desired length.

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Chapter 18 Solutions