Question 1

What would be the product,B,of the following reaction sequence?

Accepted Answer

A) C6H5CH=CHCO2H 
B)    
C) C6H5CH2CH2CO2H 
D)    
E)    
A) C6H5CH=CHCO2H 
B)    
C) C6H5CH2CH2CO2H 
D)    
E)

Question 2

What is the product of the Dieckmann-like condensation of this ketoester,

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 3

The aldol reaction of cyclobutanone produces which of these self-condensation products?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 4

Which of these is not among the reaction products when a crossed aldol addition occurs between ethanal and butanal?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 5

What would be the major product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 6

What would be the product,C,of the following reaction sequence?

Accepted Answer

A) (CH3)3CCH2CH2CH2OH 
B)    
C)    
D)    
E)    
A) (CH3)3CCH2CH2CH2OH 
B)    
C)    
D)    
E)

Question 7

What is the product of the Dieckmann condensation of this diester,

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 8

What would be the major product,B,of the following reaction sequence?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 9

Suggest a reasonable mechanism for the following reaction.

Accepted Answer

The answer of Suggest a reasonable mechanism for the following...

Question 10

What would be the product of the following reaction sequence?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 11

What is the expected product from the following reaction sequence?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 12

Which compound could be prepared via Dieckmann condensation?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 13

Which of the following statements is true about the anion formed from the reaction of diethyl malonate with sodium ethoxide?

Accepted Answer

A) It can react with an $\infty$,$\beta$-unsaturated ester by conjugate addition. 
B) It can condense with aldehydes and ketones. 
C) It can be alkylated with an alkyl halide. 
D) It is resonance stabilized. 
E) All of these statements are true. 
A) It can react with an $\infty$,$\beta$-unsaturated ester by conjugate addition. 
B) It can condense with aldehydes and ketones. 
C) It can be alkylated with an alkyl halide. 
D) It is resonance stabilized. 
E) All of these statements are true.

Question 14

Which of these is not a reversible process?

Accepted Answer

A) Base-promoted ester hydrolysis 
B) Acid-catalyzed ester hydrolysis 
C) Aldol addition 
D) Claisen condensation 
E) Acetal formation 
A) Base-promoted ester hydrolysis 
B) Acid-catalyzed ester hydrolysis 
C) Aldol addition 
D) Claisen condensation 
E) Acetal formation

Question 15

What is the product of the Dieckmann condensation of this diester,

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 16

Which of the following would afford the best synthesis of diethyl phenylmalonate,

Accepted Answer

A)   
B)   
C)   
D)   
E)   
A)   
B)   
C)   
D)   
E)

Question 17

What would be the major product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 18

What is the product of the Dieckmann condensation of this diester,

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 19

What is the product of the Dieckmann condensation of this diester,

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 20

Predict the product from the following sequence:

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Exam 19: Condensation and Conjugate Addition Reactions of Carbonyl Compounds

What would be the product,B,of the following reaction sequence?

What is the product of the Dieckmann-like condensation of this ketoester,

The aldol reaction of cyclobutanone produces which of these self-condensation products?

Which of these is not among the reaction products when a crossed aldol addition occurs between ethanal and butanal?

What would be the major product of the following reaction?

What would be the product,C,of the following reaction sequence?

What is the product of the Dieckmann condensation of this diester,

What would be the major product,B,of the following reaction sequence?

Suggest a reasonable mechanism for the following reaction.

What would be the product of the following reaction sequence?

What is the expected product from the following reaction sequence?

Which compound could be prepared via Dieckmann condensation?

Which of the following statements is true about the anion formed from the reaction of diethyl malonate with sodium ethoxide?

Which of these is not a reversible process?

What is the product of the Dieckmann condensation of this diester,

Which of the following would afford the best synthesis of diethyl phenylmalonate,

What would be the major product of the following reaction?

What is the product of the Dieckmann condensation of this diester,

What is the product of the Dieckmann condensation of this diester,

Predict the product from the following sequence:

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