Question 1

What two molecules were condensed in an aldol reaction to produce
(CH3)3CCH  CHCOCH3?

Accepted Answer

Question 2

What is the major organic product from the following reaction?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  VF) B) and D)
G) A) and B)

Question 3

Give the major product for the following reaction.

Accepted Answer

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

Question 4

Which of the following molecules cannot generate an enolate?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  VF) C) and E)
G) None of the above

Question 5

In the Michael reaction,addition to the α,β-unsaturated carbonyl occurs in a

Accepted Answer

A)  1,2-fashion
B)  1,3-fashion
C)  1,4-fashion
D)  1,5-fashion
E)  Diels-Alder reactionF) A) and B)
G) A) and C)

Question 6

Rank the following compounds in order of increasing acidity of their a-Hs,least acidic to most acidic: CH3CH2CON(CH3)2,PhCOCH2CHO,CH3CH2CO2CH2CH3,and PhCOCH2CO2CH2CH3.

Accepted Answer

CH₃CH₂CON(CH...

Question 7

What is the carbon nucleophile which attacks molecular bromine in the acid-catalyzed α-bromination of a ketone?

Accepted Answer

A)  an enolate
B)  a Grignard reagent
C)  an acetylide
D)  a carbocation
E)  an enolF) B) and E)
G) D) and E)

Question 8

Provide a detailed,stepwise mechanism for the acid-catalyzed enolization of acetaldehyde.

Accepted Answer

The answer of Provide a detailed,stepwise mechanism for the acid-catalyzed...

Question 9

Give the major product for the following reaction.

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) C) and D)
G) B) and D)

Question 10

Fill in the empty boxes.

Accepted Answer

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

Question 11

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 12

What is the major organic product of the following reaction?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  VF) A) and D)
G) B) and D)

Question 13

Draw the most stable enol tautomer of the ketone shown below.

Accepted Answer

The answer of Draw the most stable enol tautomer of...

Question 14

Give the major product for the following reaction.

Accepted Answer

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

Question 15

Which of the following will alkylate a lithium enolate most rapidly?

Accepted Answer

A)  methyl bromide
B)  isopropyl bromide
C)  neopentyl bromide
D)  bromobenzene
E)  2-methylbromobenzeneF) A) and E)
G) B) and D)

Question 16

Provide the structure of the major organic product that results when 4-methylhexanal is heated in base and undergoes and aldol addition followed by a dehydration.

Accepted Answer

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

Question 17

Give the major product for the following reaction.

Accepted Answer

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

Question 18

What is the major organic product of the following aldol addition?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  VF) C) and D)
G) A) and C)

Question 19

Give the major product for the following reaction.

Accepted Answer

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

Question 20

Which of the following reagents will quantitatively convert an enolizable ketone to its enolate salt?

Accepted Answer

A)  lithium hydroxide
B)  lithium diisopropylamide
C)  methyllithium
D)  diethylamine
E)  pyridineF) A) and C)
G) C) and D)

Exam 17: Reactions at the Α-Carbon

Draw the most stable enol tautomer of the ketone shown below.

Correct AnswerverifiedShow Answer

Give the major product for the following reaction.

Correct AnswerverifiedShow Answer

In the Michael reaction,addition to the α,β-unsaturated carbonyl occurs in a

Correct AnswerverifiedShow Answer

Rank the following compounds in order of increasing acidity of their a-Hs,least acidic to most acidic: CH3CH2CON(CH3)2,PhCOCH2CHO,CH3CH2CO2CH2CH3,and PhCOCH2CO2CH2CH3.

Correct AnswerverifiedCH3CH2CON(CH...View AnswerShow Answer

Which of the following reagents will quantitatively convert an enolizable ketone to its enolate salt?

Correct AnswerverifiedShow Answer

What is the major organic product of the following aldol addition?

Correct AnswerverifiedShow Answer

What two molecules were condensed in an aldol reaction to produce (CH3)3CCH CHCOCH3?

Correct AnswerverifiedShow Answer

Provide a detailed,stepwise mechanism for the acid-catalyzed enolization of acetaldehyde.

Correct AnswerverifiedShow Answer

Give the major product for the following reaction.

Correct AnswerverifiedShow Answer

What is the major organic product from the following reaction?

Correct AnswerverifiedShow Answer

Give the major product for the following reaction.

Correct AnswerverifiedShow Answer

Give the major product for the following reaction.

Correct AnswerverifiedShow Answer

Fill in the empty boxes.

Correct AnswerverifiedShow Answer

What is the major organic product of the following reaction?

Correct AnswerverifiedShow Answer

Which of the following will alkylate a lithium enolate most rapidly?

Correct AnswerverifiedShow Answer

What is the carbon nucleophile which attacks molecular bromine in the acid-catalyzed α-bromination of a ketone?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Provide the structure of the major organic product that results when 4-methylhexanal is heated in base and undergoes and aldol addition followed by a dehydration.

Correct AnswerverifiedShow Answer

Which of the following molecules cannot generate an enolate?

Correct AnswerverifiedShow Answer

Give the major product for the following reaction.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Rank the following compounds in order of increasing acidity of their a-Hs,least acidic to most acidic: CH₃CH₂CON(CH₃)₂,PhCOCH₂CHO,CH₃CH₂CO₂CH₂CH₃,and PhCOCH₂CO₂CH₂CH₃.

Correct Answer
verified
CH₃CH₂CON(CH...
View Answer

Correct Answer
verified

Correct Answer
verified

What two molecules were condensed in an aldol reaction to produce (CH₃)₃CCH CHCOCH₃?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified