Question 1

Acetals will react with ________.

Accepted Answer

A)   H3O⊕
B)   NaOCH3
C)   PhLi
D)   CH3CH2MgBr
E)   NaBH4F) B) and D)
G) B) and C)

Question 2

Provide the preferred reagent pair to synthesize 3-ethylpent-2-ene via a Wittig reaction.

Accepted Answer

CH₃CH₂COCH₂CH...

Question 3

Which series of reactions described below will result in the formation of compound A, starting with compound B? 2) 2-OH /trace H3O+ 2. DMSO (COCl2) /Et3N, CH2Cl2 3)  MgBr-(CH2) 2-CH3/diethyl ether 4)  work-up with H3O+ B)  1. PCC 2. SOCl2 3)  LiCu-((CH2) 2-CH3) 2 4)  work-up with H3O+ C)  1. Na2Cr2O7/H2SO4 2. SOCl2 3)  2 MgBr-(CH2) 2-CH3/diethyl ether 4)  work-up with H3O+ D)  both A and B E)  both B and C" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   1. HO-(CH2) 2-OH /trace H3O+ 2. DMSO (COCl2) /Et3N, CH2Cl23)  MgBr-(CH2) 2-CH3/diethyl ether4)  work-up with H3O+
B)   1. PCC 2. SOCl23)  LiCu-((CH2) 2-CH3) 24)  work-up with H3O+
C)   1. Na2Cr2O7/H2SO4 2. SOCl23)  2 MgBr-(CH2) 2-CH3/diethyl ether4)  work-up with H3O+
D)   both A and B
E)   both B and CF) B) and C)
G) C) and D)

Question 4

Provide the major organic product of the reaction shown below.

Accepted Answer

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

Question 5

An ylide is a molecule that can be described as a:

Accepted Answer

A)   carbanion bound to a negatively charged heteroatom.
B)   carbocation bound to a positively charged heteroatom.
C)   carbocation bound to a carbon radical.
D)   carbocation bound to a diazonium ion.
E)   carbanion bound to a positively charged heteroatom.F) A) and D)
G) All of the above

Question 6

Provide the major organic product which results when PhCHOHCH3 is treated with PCC.

Accepted Answer

Question 7

Propose a sequence of steps to carry out the following conversion.

Accepted Answer

1. HOCH₂CH₂OH, H⁺
2. Na...

Question 8

Provide a detailed, stepwise mechanism for the acid-catalyzed reaction of 2-butanone with ethylene glycol (HOCH2CH2OH) to produce an acetal.

Accepted Answer

Question 9

Oxidation of a 2° alcohol with chromic acid results in the production of ________.

Accepted Answer

A)   an ester
B)   a ketone
C)   an aldehyde
D)   an ether
E)   none of the aboveF) B) and C)
G) A) and C)

Question 10

What product will result from the reaction shown?

Accepted Answer

A)   acetal
B)   hydrazine
C)   ester
D)   ylide
E)   ketoneF) A) and C)
G) C) and D)

Question 11

Treatment of a nitrile with a Grignard reagent followed by hydrolysis results in ________.

Accepted Answer

A)   an ester
B)   a ketone
C)   an aldehyde
D)   an ether
E)   an alcoholF) B) and C)
G) C) and D)

Question 12

The double bond between carbon and oxygen is similar to an alkene C=C, except that C=O is:

Accepted Answer

A)   shorter and weaker.
B)   shorter and stronger.
C)   longer and weaker.
D)   longer and stronger.
E)   longer.F) None of the above
G) D) and E)

Exam 18: Ketones and Aldehydes

Treatment of a nitrile with a Grignard reagent followed by hydrolysis results in ________.

Correct Answer
verified

Provide the major organic product of the reaction shown below.

Correct Answer
verified

Provide the preferred reagent pair to synthesize 3-ethylpent-2-ene via a Wittig reaction.

Correct Answer
verified
CH₃CH₂COCH₂CH...
View Answer

Acetals will react with ________.

Correct Answer
verified

Provide a detailed, stepwise mechanism for the acid-catalyzed reaction of 2-butanone with ethylene glycol (HOCH₂CH₂OH) to produce an acetal.

Correct Answer
verified

Propose a sequence of steps to carry out the following conversion.

Correct Answer
verified
1. HOCH₂CH₂OH, H⁺
2. Na...
View Answer

The double bond between carbon and oxygen is similar to an alkene C=C, except that C=O is:

Correct Answer
verified

An ylide is a molecule that can be described as a:

Correct Answer
verified

What product will result from the reaction shown?

Correct Answer
verified

Provide the major organic product which results when PhCHOHCH₃ is treated with PCC.

Correct Answer
verified

Which series of reactions described below will result in the formation of compound A, starting with compound B?

Correct Answer
verified

Oxidation of a 2° alcohol with chromic acid results in the production of ________.

Correct Answer
verified

Exam 18: Ketones and Aldehydes

Treatment of a nitrile with a Grignard reagent followed by hydrolysis results in ________.

Correct AnswerverifiedShow Answer

Provide the major organic product of the reaction shown below.

Correct AnswerverifiedShow Answer

Provide the preferred reagent pair to synthesize 3-ethylpent-2-ene via a Wittig reaction.

Correct AnswerverifiedCH3CH2COCH2CH...View AnswerShow Answer

Acetals will react with ________.

Correct AnswerverifiedShow Answer

Provide a detailed, stepwise mechanism for the acid-catalyzed reaction of 2-butanone with ethylene glycol (HOCH2CH2OH) to produce an acetal.

Correct AnswerverifiedShow Answer

Propose a sequence of steps to carry out the following conversion.

Correct Answerverified1. HOCH2CH2OH, H+2. Na...View AnswerShow Answer

The double bond between carbon and oxygen is similar to an alkene C=C, except that C=O is:

Correct AnswerverifiedShow Answer

An ylide is a molecule that can be described as a:

Correct AnswerverifiedShow Answer

What product will result from the reaction shown?

Correct AnswerverifiedShow Answer

Provide the major organic product which results when PhCHOHCH3 is treated with PCC.

Correct AnswerverifiedShow Answer

Which series of reactions described below will result in the formation of compound A, starting with compound B?

Correct AnswerverifiedShow Answer

Oxidation of a 2° alcohol with chromic acid results in the production of ________.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
CH₃CH₂COCH₂CH...
View Answer

Correct Answer
verified

Provide a detailed, stepwise mechanism for the acid-catalyzed reaction of 2-butanone with ethylene glycol (HOCH₂CH₂OH) to produce an acetal.

Correct Answer
verified

Correct Answer
verified
1. HOCH₂CH₂OH, H⁺
2. Na...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Provide the major organic product which results when PhCHOHCH₃ is treated with PCC.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified