Question 1

What reagents can be used to convert 1-hexyne into 2-hexanone?

Accepted Answer

A)   1. Sia2BH; 2. H2O2, NaOH
B)   Hg2+, H2SO4, H2O
C)   1. O3; 2. (CH3) 2S
D)   1. CH3MgBr; 2. CO2
E)   1. H2, Ni; 2. Na2Cr2O7, H2SO4

Question 2

Which series of reactions described below, if any, will result in the formation of 2-methylpentan-3-one starting with 1-propanol?

Accepted Answer

A)   1. (CH3) 2CHMgBr/ diethyl ether2)  dilute H3O+3)  PCC
B)   1. Na2Cr2O7/H2SO4 and heat2)  SOCl23)  2 (CH3) 2CHMgBr/ diethyl ether4)  H3O+
C)   1. Na2Cr2O7/H2SO4 and heat2)  (CH3) 2CHMgBr/ diethyl ether3)  dilute H3O+4)  LiAlH4
D)   1. PCC2)  (CH3) 2CHLi/ diethyl ether3)  dilute H3O+4)  Na2Cr2O7/H2SO4 and heat
E)   none of the above

Question 3

Provide the IUPAC name for the following compound.

Accepted Answer

6-hydroxy-...

Question 4

Which is more soluble in water, 2-butanone or n-hexane? Explain.

Accepted Answer

2-Butanone is more soluble in water. The...

Question 5

Show how the following reaction may be accomplished by filling in the correct reagents.

Accepted Answer

1) LDA or ...

Question 6

Oxidation of a 3° 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 above

Question 7

The reagent which converts a carbonyl group of a ketone into a methylene group is ________.

Accepted Answer

A)   Na, NH3, CH3CH2OH
B)   LiAlH4
C)   NaBH4, CH3CH2OH
D)   Zn(Hg) , conc. HCl
E)   LiAlH[OC(CH3) 3]3

Question 8

Which of the following is also known as a Schiff base?

Accepted Answer

A)   an imine
B)   a cyanohydrin
C)   a hydrate
D)   sodium hydroxide
E)   an aldehyde

Question 9

Name the following compound.

Accepted Answer

p-chlorobe...

Question 10

Predict the major organic product of the following reaction:

Accepted Answer

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

Question 11

Provide the major organic product of the reaction shown below.

Accepted Answer

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

Question 12

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

Accepted Answer

1) HOCH₂CH₂OH, H⁺
2) Na...

Question 13

Provide the major organic product of the following reaction.

Accepted Answer

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

Question 14

Provide the major organic product of the reaction shown below.

Accepted Answer

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

Question 15

Provide the structure of the hydrate of cyclopentanone.

Accepted Answer

The answer of Provide the structure of the hydrate of...

Question 16

Which compound will show an intense peak in the mass spectrum at m/z 58?

Accepted Answer

A)   CH3COCH2CH2CH3
B)   (CH3) 2CHCOCH3
C)   CH3CH2COCH2CH3
D)   (CH3) 3CCHO
E)   (CH3) 3CCOCH3

Question 17

Provide the major organic product of the reaction shown below.

Accepted Answer

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

Question 18

Provide a detailed, stepwise mechanism for the base-catalyzed hydration of 2-butanone.

Accepted Answer

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

Question 19

The strongest absorptions in the UV spectra of aldehydes and ketones are ones which result from ________ electronic transitions.

Accepted Answer

A)   σ to σ*
B)   σ to π*
C)   n to π*
D)   π to π*
E)   π to σ*

Question 20

Another name for β-methoxybutyraldehyde is ________.

Accepted Answer

A)   2-methoxypropanal
B)   3-methoxypropanal
C)   2-methoxybutanal
D)   3-methoxybutanal
E)   2-methoxypentanal

Exam 18: Ketones and Aldehydes

Provide the IUPAC name for the following compound.

Correct Answerverified6-hydroxy-...View AnswerShow Answer

Provide the structure of the hydrate of cyclopentanone.

Correct AnswerverifiedShow Answer

What reagents can be used to convert 1-hexyne into 2-hexanone?

Correct AnswerverifiedShow Answer

Name the following compound.

Correct Answerverifiedp-chlorobe...View AnswerShow Answer

The strongest absorptions in the UV spectra of aldehydes and ketones are ones which result from ________ electronic transitions.

Correct AnswerverifiedShow Answer

Show how the following reaction may be accomplished by filling in the correct reagents.

Correct Answerverified1) LDA or ...View AnswerShow Answer

Which of the following is also known as a Schiff base?

Correct AnswerverifiedShow Answer

Which is more soluble in water, 2-butanone or n-hexane? Explain.

Correct Answerverified2-Butanone is more soluble in water. The...View AnswerShow Answer

Oxidation of a 3° alcohol with chromic acid results in the production of ________.

Correct AnswerverifiedShow Answer

The reagent which converts a carbonyl group of a ketone into a methylene group is ________.

Correct AnswerverifiedShow Answer

Provide the major organic product of the reaction shown below.

Correct AnswerverifiedShow Answer

Provide the major organic product of the reaction shown below.

Correct AnswerverifiedShow Answer

Which compound will show an intense peak in the mass spectrum at m/z 58?

Correct AnswerverifiedShow Answer

Which series of reactions described below, if any, will result in the formation of 2-methylpentan-3-one starting with 1-propanol?

Correct AnswerverifiedShow Answer

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

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

Provide a detailed, stepwise mechanism for the base-catalyzed hydration of 2-butanone.

Correct AnswerverifiedShow Answer

Provide the major organic product of the following reaction.

Correct AnswerverifiedShow Answer

Predict the major organic product of the following reaction:

Correct AnswerverifiedShow Answer

Another name for β-methoxybutyraldehyde is ________.

Correct AnswerverifiedShow Answer

Provide the major organic product of the reaction shown below.

Correct AnswerverifiedShow Answer

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6-hydroxy-...
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p-chlorobe...
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1) LDA or ...
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2-Butanone is more soluble in water. The...
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1) HOCH₂CH₂OH, H⁺
2) Na...
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