Question 1

Which of the following is a β-diester?

Accepted Answer

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

Question 2

Give the major product for the reaction.

Accepted Answer

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

Question 3

Which of the following methods can be used to prepare the following compound?

Accepted Answer

A) I 
B) II 
C) III 
D) II and III 
E) I,II,and III 
A) I 
B) II 
C) III 
D) II and III 
E) I,II,and III D

Question 4

Provide the major organic product(s)of the reaction shown below.

Accepted Answer

The answer of Provide the major organic product(s)of the reaction...

Question 5

Which of the following compounds will give a positive iodoform test?

Accepted Answer

A) propanal 
B) 2-pentanone 
C) 3-pentanone 
D) benzophenone 
E) cyclohexanone 
A) propanal 
B) 2-pentanone 
C) 3-pentanone 
D) benzophenone 
E) cyclohexanone

Question 6

Provide the major organic product of the following.

Accepted Answer

The answer of Provide the major organic product of the...

Question 7

In theory a poorly planned crossed aldol reaction can produce how many different aldol regioisomers?

Accepted Answer

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

Question 8

Fill in the empty boxes.

Accepted Answer

The answer of Fill in the empty boxes.  ...

Question 9

Which of the following could result from the dehydration of an aldol?

Accepted Answer

A) 4-methyl-3-penten-2-one 
B) 4-methyl-4-penten-2-one 
C) 4-methyl-5-hexen-2-one 
D) 4-methyl-4-hexen-2-one 
E) 3-methyl-4-penten-2-one 
A) 4-methyl-3-penten-2-one 
B) 4-methyl-4-penten-2-one 
C) 4-methyl-5-hexen-2-one 
D) 4-methyl-4-hexen-2-one 
E) 3-methyl-4-penten-2-one

Question 10

What is the major organic 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 11

What alkyl bromide should be used in the malonic ester synthesis of the following carboxylic acid?

Accepted Answer

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

Question 12

Give the major product for the following reaction.

Accepted Answer

The answer of Give the major product for the following...

Question 13

Give the major product for the following reaction.

Accepted Answer

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

Question 14

Provide a synthesis of the compound shown below from 2-cyclopenten-1-one and acetoacetic ester.

Accepted Answer

From aceto

Question 15

Provide a detailed,stepwise mechanism for the transformation shown below.

Accepted Answer

The answer of Provide a detailed,stepwise mechanism for the transformation...

Question 16

Give the major product for the following reaction.

Accepted Answer

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

Question 17

A β-keto ester is a product in which of the following reactions?

Accepted Answer

A) Aldol condensation 
B) Claisen condensation 
C) Dieckmann condensation 
D) Robinson annulation 
E) Michael addition 
A) Aldol condensation 
B) Claisen condensation 
C) Dieckmann condensation 
D) Robinson annulation 
E) Michael addition

Question 18

(a)The base-catalyzed reaction of 1 mole of acetone with 2 moles of benzaldehyde yields a yellow solid,C17H14O.What is the structure of the product?
(b)What will be the result when only 1 mole of benzaldehyde is added?
(c)What will be the result when acetone is not added at all?
(d)What will be the result when benzaldehyde is not added at all?
(e)Why is the self-condensation of acetone unlikely in the presence of benzaldehyde?

Accepted Answer

(a)This is an aldol addition. @#IMG-DLM& (b)Using

Question 19

What iminium salt is produced in the reaction shown below?

Accepted Answer

The answer of What iminium salt is produced in the...

Question 20

Which of the following compounds has the most stable enol tautomer?

Accepted Answer

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

Exam 17: Reactions at the Α-Carbon

Which of the following is a β-diester?

Give the major product for the reaction.

Which of the following methods can be used to prepare the following compound?

Provide the major organic product(s)of the reaction shown below.

Which of the following compounds will give a positive iodoform test?

Provide the major organic product of the following.

In theory a poorly planned crossed aldol reaction can produce how many different aldol regioisomers?

Fill in the empty boxes.

Which of the following could result from the dehydration of an aldol?

What is the major organic product of the following reaction?

What alkyl bromide should be used in the malonic ester synthesis of the following carboxylic acid?

Give the major product for the following reaction.

Give the major product for the following reaction.

Provide a synthesis of the compound shown below from 2-cyclopenten-1-one and acetoacetic ester.

Provide a detailed,stepwise mechanism for the transformation shown below.

Give the major product for the following reaction.

A β-keto ester is a product in which of the following reactions?

What iminium salt is produced in the reaction shown below?

Which of the following compounds has the most stable enol tautomer?

Remembering General Chemistry: Electronic Structure and Bonding

Acids and Bases: Central to Understanding Organic Chemistry

An Introduction to Organic Compounds: Nomenclature, physical Properties, and Structure

Isomers: the Arrangement of Atoms in Space

Alkenes: Structure,nomenclature,and an Introduction to Reactivity - Thermodynamics and Kinetics

The Reactions of Alkenes - the Stereochemistry of Addition Reactions

The Reactions of Alkynes - Introduction to Multistep Synthesis

Delocalized Electrons: Their Effect on Stability, pka, and the Products of a Reaction - Aromaticity and Electronic Effects: an Introduction to the Reactions of Benzene

Substitution and Elimination Reactions of Alkyl Halides

Reactions of Alcohols, ethers, epoxides, amines and Sulfur-Containing Compounds

Organometallic Compounds

Radicals

Mass Spectrometry,infrared Spectroscopy,and Uvvis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions of Aldehydes and Ketones

Reactions of Benzene and Substituted Benzenes

More About Amines - Reactions of Heterocylic Compounds

The Organic Chemistry of Carbohydrates

Amino Acids,peptides,and Proteins

Catalysis in Organic Reactions and in Enzymatic Reactions

The Organic Chemistry of the Coenzymes, compounds Derived From Vitamins

The Organic Chemistry of the Metabolic Pathways

The Organic Chemistry of Lipids

The Chemistry of the Nucleic Acids

Synthetic Polymers

Pericyclic Reactions

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