Question 1

Which is the only one of these compounds which cannot self-condense in the presence of dilute aqueous alkali?

Accepted Answer

A) Phenylethanal 
B) Propanal 
C) 2-Methylpropanal 
D) 3-Methylpentanal 
E) 2,2-Dimethylpropanal 
A) Phenylethanal 
B) Propanal 
C) 2-Methylpropanal 
D) 3-Methylpentanal 
E) 2,2-Dimethylpropanal

Question 2

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 3

The reaction of diethyl hexanedioate with sodium ethoxide would give as the product:

Accepted Answer

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

Question 4

What would be the product of 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

Question 5

What would be the major product of the following reaction?

Accepted Answer

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

Question 6

What is the product of the 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 7

If butanal is added slowly to an aqueous solution of sodium hydroxide and 2,2-dimethylpropanal at 25 S1U1P1$\circ$S1S1P0C,the principal product is which of these?

Accepted Answer

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

Question 8

2-Methylcyclohexane-1,3-dione can be synthesized from:

Accepted Answer

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

Question 9

Which compound may be prepared using a Mannich reaction?

Accepted Answer

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

Question 10

What would be the major product of the following reaction?

Accepted Answer

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

Question 11

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

Accepted Answer

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

Question 12

What starting compound(s)would you use in an aldol reaction to prepare as the major product:

Accepted Answer

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

Question 13

When $\alpha$,$\beta$-unsaturated aldehydes and ketones react with nucleophiles,they do so in one of two ways.What are the two ways?

Accepted Answer

simple or

Question 14

What starting compound(s)would you use in an aldol reaction to prepare as the major product:

Accepted Answer

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

Question 15

What would be the final product of the following reaction sequence?

Accepted Answer

A) C6H5CH2CH2CH2CH3 
B)    
C)    
D)    
E)    
A) C6H5CH2CH2CH2CH3 
B)    
C)    
D)    
E)

Question 16

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 17

What is the final product of the following reaction sequence? Give structural details of all significant intermediates.

Accepted Answer

The answer of What is the final product of the...

Question 18

Suggest a reasonable synthetic strategy to carry out the following transformation.

Accepted Answer

The answer of Suggest a reasonable synthetic strategy to carry...

Question 19

The aldol reaction of cyclohexanone 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 20

What is 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

Exam 19: Condensation and Conjugate Addition Reactions of Carbonyl Compounds

Which is the only one of these compounds which cannot self-condense in the presence of dilute aqueous alkali?

What would be the major product of the following reaction?

The reaction of diethyl hexanedioate with sodium ethoxide would give as the product:

What would be the product of the following sequence?

What would be the major product of the following reaction?

What is the product of the reaction sequence:

If butanal is added slowly to an aqueous solution of sodium hydroxide and 2,2-dimethylpropanal at 25 ∘\circ∘ C,the principal product is which of these?

2-Methylcyclohexane-1,3-dione can be synthesized from:

Which compound may be prepared using a Mannich reaction?

What would be the major product of the following reaction?

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

What starting compound(s)would you use in an aldol reaction to prepare as the major product:

When α\alphaα , β\betaβ -unsaturated aldehydes and ketones react with nucleophiles,they do so in one of two ways.What are the two ways?

What starting compound(s)would you use in an aldol reaction to prepare as the major product:

What would be the final product of the following reaction sequence?

What would be the product of the following reaction sequence?

What is the final product of the following reaction sequence? Give structural details of all significant intermediates.

Suggest a reasonable synthetic strategy to carry out the following transformation.

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

What is the major product of the following reaction?

The Basics

Families of Carbon

Acids and Bases

Nomenclature and Conformations of Alkanes and Cycloalkanes

Stereochemistry

Nucleophilic Reactions

Alkenes and Alkynes I

Alkenes and Alkynes II

Nuclear Magnetic Resonance and Mass Spectrometry

Radical Reactions

Alcohols and Ethers

Alcohols From Carbonyl Compounds

Conjugated Unsaturated Systems

Aromatic Compounds

Reactions of Aromatic Compounds

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Reactions at the Α Carbon of Carbonyl Compounds

Amines

Transition Metal Complexes

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids and Protein Synthesis

Filters

If butanal is added slowly to an aqueous solution of sodium hydroxide and 2,2-dimethylpropanal at 25 ^$\circ$C,the principal product is which of these?

When $\alpha$ , $\beta$ -unsaturated aldehydes and ketones react with nucleophiles,they do so in one of two ways.What are the two ways?