(a) Interpretation: The acetals in etoposide are to be identified. Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

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Answer 1

Question

Chapter 21, Problem 21.53P

Interpretation Introduction

(a)

Interpretation: The acetals in etoposide are to be identified.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Interpretation Introduction

(b)

Interpretation: The products formed from the hydrolysis of all acetals with aqueous acid are to be stated.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

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Ethyl butyrate, CH3CH2CH2CO2CH2CH3CH3CH2CH2CO2CH2CH3, is an artificial fruit flavor commonly used in the food industry for such flavors as orange and pineapple. Its fragrance and taste are often associated with fresh orange juice, and thus it is most commonly used as orange flavoring. It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst (H+H+): CH3CH2CH2CO2H(l)+CH2CH3OH(l)H+⟶CH3CH2CH2CO2CH2CH3(l)+H2O(l) Part A Given 7.30 gg of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100%% yield? Express your answer in grams to three significant figures. Part B A chemist ran the reaction and obtained 5.95 gg of ethyl butyrate. What was the percent yield? Express your answer as a percent to three significant figures. Part C The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0%% yield. How many grams would be produced from 7.30 gg of…

Ethyl butyrate, CH3CH2CH2CO2CH2CH3CH3CH2CH2CO2CH2CH3, is an artificial fruit flavor commonly used in the food industry for such flavors as orange and pineapple. Its fragrance and taste are often associated with fresh orange juice, and thus it is most commonly used as orange flavoring. It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst (H+H+): CH3CH2CH2CO2H(l)+CH2CH3OH(l)H+⟶CH3CH2CH2CO2CH2CH3(l)+H2O(l) Given 8.45 gg of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100%% yield? Express your answer in grams to three significant figures. A chemist ran the reaction and obtained 5.50 gg of ethyl butyrate. What was the percent yield? Express your answer as a percent to three significant figures. The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0%% yield. How many grams would be produced from 8.45 gg of butanoic acid and excess…

Etoposide, sold as a phosphate derivative with the trade name of Etopophos, is used for the treatment of lung cancer, testicular cancer, and lymphomas. (a) Locate the acetals in etoposide. (b) What products are formed when all of the acetals are hydrolyzed with aqueous acid?

Answer 2

Question

Chapter 21, Problem 21.53P

Interpretation Introduction

(a)

Interpretation: The acetals in etoposide are to be identified.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Interpretation Introduction

(b)

Interpretation: The products formed from the hydrolysis of all acetals with aqueous acid are to be stated.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

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Answer 3

Question

Chapter 21, Problem 21.53P

Interpretation Introduction

(a)

Interpretation: The acetals in etoposide are to be identified.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Interpretation Introduction

(b)

Interpretation: The products formed from the hydrolysis of all acetals with aqueous acid are to be stated.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

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Answer 4

Question

Chapter 21, Problem 21.53P

Interpretation Introduction

(a)

Interpretation: The acetals in etoposide are to be identified.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Interpretation Introduction

(b)

Interpretation: The products formed from the hydrolysis of all acetals with aqueous acid are to be stated.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Expert Solution & Answer

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Answer 5

Chapter 21, Problem 21.53P

Interpretation Introduction

(a)

Interpretation: The acetals in etoposide are to be identified.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Interpretation Introduction

(b)

Interpretation: The products formed from the hydrolysis of all acetals with aqueous acid are to be stated.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Answer 6

Chapter 21, Problem 21.53P

Interpretation Introduction

(a)

Interpretation: The acetals in etoposide are to be identified.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Answer 7

Chapter 21, Problem 21.53P

Interpretation Introduction

(a)

Interpretation: The acetals in etoposide are to be identified.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Answer 8

Interpretation Introduction

(b)

Interpretation: The products formed from the hydrolysis of all acetals with aqueous acid are to be stated.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Answer 9

Interpretation Introduction

(b)

Interpretation: The products formed from the hydrolysis of all acetals with aqueous acid are to be stated.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Answer 10

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Answer 11

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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...

(a) Interpretation: The acetals in etoposide are to be identified. Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

Concept explainers

(a)

Interpretation: The acetals in etoposide are to be identified.

Concept introduction: Acetals are the groups in which carbon atom is bonded with two oxygen atoms through single bonds. They are used as protecting groups as they are stable enough in neutral to strong basic condition.

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Chapter 21 Solutions