(a) Interpretation: The given carboxylic acids is to be prepared by using malonic ester synthesis. Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid . NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Question

Draw the products formed when each compound is treated with one equivalent of HBr.

Answer 1

Question

Chapter 21, Problem 43P

Interpretation Introduction

(a)

Interpretation: The given carboxylic acids is to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Interpretation Introduction

(b)

Interpretation: The given carboxylic acids are to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

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Draw the products formed when each compound is treated with one equivalent of HBr.

Draw the organic products formed when each alkyne is treated with two equivalents of HBr.

What acetylide anion and alkyl halide are needed to synthesize each alkyne?

Answer 2

Question

Chapter 21, Problem 43P

Interpretation Introduction

(a)

Interpretation: The given carboxylic acids is to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Interpretation Introduction

(b)

Interpretation: The given carboxylic acids are to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

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Answer 3

Question

Chapter 21, Problem 43P

Interpretation Introduction

(a)

Interpretation: The given carboxylic acids is to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Interpretation Introduction

(b)

Interpretation: The given carboxylic acids are to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

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Answer 4

Question

Chapter 21, Problem 43P

Interpretation Introduction

(a)

Interpretation: The given carboxylic acids is to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Interpretation Introduction

(b)

Interpretation: The given carboxylic acids are to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

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Answer 5

Chapter 21, Problem 43P

Interpretation Introduction

(a)

Interpretation: The given carboxylic acids is to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Interpretation Introduction

(b)

Interpretation: The given carboxylic acids are to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Answer 6

Chapter 21, Problem 43P

Interpretation Introduction

(a)

Interpretation: The given carboxylic acids is to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Answer 7

Chapter 21, Problem 43P

Interpretation Introduction

(a)

Interpretation: The given carboxylic acids is to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Answer 8

Interpretation Introduction

(b)

Interpretation: The given carboxylic acids are to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Answer 9

Interpretation Introduction

(b)

Interpretation: The given carboxylic acids are to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Answer 10

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Answer 21

Ch. 21.2 - Problem 23.1 Draw the enol or keto tautomer(s) of...Ch. 21.2 - Problem 23.3 When phenylacetaldehyde is dissolved...Ch. 21.3 - Prob. 5P Ch. 21.3 - Problem 23.5 Which bonds in the following...Ch. 21.3 - Prob. 7P Ch. 21.3 - Prob. 8P Ch. 21.3 - Prob. 9P Ch. 21.4 - Prob. 10P Ch. 21.5 - Prob. 11P Ch. 21.7 - Problem 23.11 Draw the products of each...

Solution Summary: The author explains how the carboxylic acid is prepared by using malonic ester synthesis.

Chapter 21 Solutions