Question 1

Provide both resonance structures of the enolate formed when the following ketone is treated with a base.

Accepted Answer

The answer of Provide both resonance structures of the enolate...

Question 2

In an aldol mechanism, the ___________ attacks the aldehyde.

Accepted Answer

enolate

Question 3

Provide the reagents necessary to carry out the following conversion.

Accepted Answer

1. LDA 2. 3. H₃O⁺

Question 4

Predict the major product for 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 5

Provide both resonance structures of the enolate formed when the following ketone is treated with a base.

Accepted Answer

The answer of Provide both resonance structures of the enolate...

Question 6

Provide a stepwise synthesis for the following conversion.

Accepted Answer

@#IMG-DLM&_TB4454_00

Question 7

Predict the product for the following reaction.

Accepted Answer

The answer of Predict the product for the following reaction....

Question 8

An intermolecular Claisen condensation is called a _____________.

Accepted Answer

Dieckmann

Question 9

Predict the product for 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 10

Which is the most acidic hydrogen in the following compound?

Accepted Answer

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

Question 11

How many beta hydrogens are in 2-pentanone?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 12

Which one of the following compounds is most likely to favor the enol tautomer over the ketone tautomer?

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 carbon atom has the most acidic hydrogen in the following compound?

Accepted Answer

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

Question 14

Predict the major product for 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 15

Predict the product for the following reaction.

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  All of these 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  All of these

Question 16

Predict the major product for the following reaction.

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these

Question 17

Provide the structures of the intermediates and the final product in the following reaction sequence.

Accepted Answer

The answer of Provide the structures of the intermediates and...

Question 18

Predict the final product for the following reaction sequence.

Accepted Answer

A)  2-methylheptanoic acid 
B)  3-methylhexanoic acid 
C)  3-methylpentanoic acid 
D)  2-methylpentanoic acid 
E)  ethyl 2-methylheptanoate 
A)  2-methylheptanoic acid 
B)  3-methylhexanoic acid 
C)  3-methylpentanoic acid 
D)  2-methylpentanoic acid 
E)  ethyl 2-methylheptanoate

Question 19

Provide the reactant that would yield m-chlorobenzoic acid using the haloform reaction.

Accepted Answer

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

Question 20

Which of the following compounds represents an enolate?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  both B and C 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  both B and C

Exam 21: Alpha Carbon Chemistry: Enols and Enolates

Provide both resonance structures of the enolate formed when the following ketone is treated with a base.

In an aldol mechanism, the ___________ attacks the aldehyde.

Provide the reagents necessary to carry out the following conversion.

Predict the major product for the following reaction.

Provide both resonance structures of the enolate formed when the following ketone is treated with a base.

Provide a stepwise synthesis for the following conversion.

Predict the product for the following reaction.

An intermolecular Claisen condensation is called a _____________.

Predict the product for the following reaction.

Which is the most acidic hydrogen in the following compound?

How many beta hydrogens are in 2-pentanone?

Which one of the following compounds is most likely to favor the enol tautomer over the ketone tautomer?

Which carbon atom has the most acidic hydrogen in the following compound?

Predict the major product for the following reaction.

Predict the product for the following reaction.

Predict the major product for the following reaction.

Provide the structures of the intermediates and the final product in the following reaction sequence.

Predict the final product for the following reaction sequence.

Provide the reactant that would yield m-chlorobenzoic acid using the haloform reaction.

Which of the following compounds represents an enolate?

A Review of General Chemistry: Electrons, Bonds, and Molecular Properties

Molecular Representations

Acids and Bases

Alkanes and Cycloalkanes

Stereoisomerism

Chemical Reactivity and Mechanisms

Alkyl Halides: Nucleophilic Substitution and Elimination Reactions

Addition Reactions of Alkenes

Alkynes

Radical Reactions

Synthesis

Alcohols and Phenols

Ethers and Epoxides; Thiols and Sulfides

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Conjugated Pi Systems and Pericyclic Reactions

Aromatic Compounds

Aromatic Substitution Reactions

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Amines

Introduction to Organometallic Compounds

Carbohydrates

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

Filters