(a) Interpretation: The problems that are likely to be encountered in the given synthesis is to be stated. Concept introduction: Grignard reagents are organometallic compounds which are prepared using alkyl halides in the presence of magnesium metal in dry ether. These reagents act as strong nucleophiles and bases.

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Answer 1

Question

Chapter 19, Problem 19.63AP

Interpretation Introduction

(a)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

Grignard reagents are organometallic compounds which are prepared using alkyl halides in the presence of magnesium metal in dry ether. These reagents act as strong nucleophiles and bases.

Interpretation Introduction

(b)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

The reaction of an aldehyde or a ketone with ethylidene triphenylphosphine that is phosphorous Ylides results in the formation of alkene as the final product. This reaction is commonly known as Wittig reaction.

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Transmitance 3. Which one of the following compounds corresponds to this IR spectrum? Point out the absorption band(s) that helped you decide. OH H3C OH H₂C CH3 H3C CH3 H3C INFRARED SPECTRUM 0.8- 0.6 0.4- 0.2 3000 2000 1000 Wavenumber (cm-1) 4. Consider this compound: H3C On the structure above, label the different types of H's as A, B, C, etc. In table form, list the labeled signals, and for each one state the number of hydrogens, their shifts, and the splitting you would observe for these hydrogens in the ¹H NMR spectrum. Label # of hydrogens splitting Shift (2)

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Answer 2

Question

Chapter 19, Problem 19.63AP

Interpretation Introduction

(a)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

Grignard reagents are organometallic compounds which are prepared using alkyl halides in the presence of magnesium metal in dry ether. These reagents act as strong nucleophiles and bases.

Interpretation Introduction

(b)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

The reaction of an aldehyde or a ketone with ethylidene triphenylphosphine that is phosphorous Ylides results in the formation of alkene as the final product. This reaction is commonly known as Wittig reaction.

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Answer 3

Question

Chapter 19, Problem 19.63AP

Interpretation Introduction

(a)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

Grignard reagents are organometallic compounds which are prepared using alkyl halides in the presence of magnesium metal in dry ether. These reagents act as strong nucleophiles and bases.

Interpretation Introduction

(b)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

The reaction of an aldehyde or a ketone with ethylidene triphenylphosphine that is phosphorous Ylides results in the formation of alkene as the final product. This reaction is commonly known as Wittig reaction.

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Answer 4

Question

Chapter 19, Problem 19.63AP

Interpretation Introduction

(a)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

Grignard reagents are organometallic compounds which are prepared using alkyl halides in the presence of magnesium metal in dry ether. These reagents act as strong nucleophiles and bases.

Interpretation Introduction

(b)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

The reaction of an aldehyde or a ketone with ethylidene triphenylphosphine that is phosphorous Ylides results in the formation of alkene as the final product. This reaction is commonly known as Wittig reaction.

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Answer 5

Chapter 19, Problem 19.63AP

Interpretation Introduction

(a)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

Grignard reagents are organometallic compounds which are prepared using alkyl halides in the presence of magnesium metal in dry ether. These reagents act as strong nucleophiles and bases.

Interpretation Introduction

(b)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

The reaction of an aldehyde or a ketone with ethylidene triphenylphosphine that is phosphorous Ylides results in the formation of alkene as the final product. This reaction is commonly known as Wittig reaction.

Answer 6

Chapter 19, Problem 19.63AP

Interpretation Introduction

(a)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

Grignard reagents are organometallic compounds which are prepared using alkyl halides in the presence of magnesium metal in dry ether. These reagents act as strong nucleophiles and bases.

Answer 7

Chapter 19, Problem 19.63AP

Interpretation Introduction

(a)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

Grignard reagents are organometallic compounds which are prepared using alkyl halides in the presence of magnesium metal in dry ether. These reagents act as strong nucleophiles and bases.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

The reaction of an aldehyde or a ketone with ethylidene triphenylphosphine that is phosphorous Ylides results in the formation of alkene as the final product. This reaction is commonly known as Wittig reaction.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The problems that are likely to be encountered in the given synthesis is to be stated.

Concept introduction:

The reaction of an aldehyde or a ketone with ethylidene triphenylphosphine that is phosphorous Ylides results in the formation of alkene as the final product. This reaction is commonly known as Wittig reaction.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 19 - Prob. 19.1P Ch. 19 - Prob. 19.2P Ch. 19 - Prob. 19.3P Ch. 19 - Prob. 19.4P Ch. 19 - Prob. 19.5P Ch. 19 - Prob. 19.6P Ch. 19 - Prob. 19.7P Ch. 19 - Prob. 19.8P Ch. 19 - Prob. 19.9P Ch. 19 - Prob. 19.10P

Solution Summary: The author explains that the selective attack of Grignard reagent to the ketonic carbon of the compound cannot take place. The reaction of an aldehyde or a ketone with ethyliden

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