Question 1

Complete the following reaction sequence,giving structural details of all key intermediates.
2-methyl-1-pentene------------------$\rightarrow$ 
i)BH3,THF
ii)H2O2,NaOH
iii)PCC,CH2Cl2
iv)CH3CH2C≡C: - Na+
v)NH4Cl

Accepted Answer

The answer of Complete the following reaction sequence,giving structural details...

Question 2

What would be the final product,A,in the following reaction sequence?

Accepted Answer

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

Question 3

List the following compounds in order of increasing level of oxidation:

Accepted Answer

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

Question 4

What would be the final product,A,in the following reaction sequence?

Accepted Answer

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

Question 5

What would be the product,D,of the following reaction sequence?

Accepted Answer

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

Question 6

Suggest a reasonable synthetic strategy for the synthesis of 2-methyl-3-hexanol from 1-butanol.

Accepted Answer

1-butanol

i)PCC;ii)(CH₃

Question 7

List the following compounds in order of increasing level of oxidation:

Accepted Answer

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

Question 8

Predict the product(s)of the following reaction sequence:

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The answer of Predict the product(s)of the following reaction sequence:...

Question 9

Predict the product(s)of the following reaction sequence:

Accepted Answer

The answer of Predict the product(s)of the following reaction sequence:...

Question 10

For the aldehyde shown,indicate on the appropriate arrow which face is the re face,and which face is si?

Accepted Answer

The answer of For the aldehyde shown,indicate on the appropriate...

Question 11

Which reagent(s) is/are capable of reducing the following ester to an aldehyde ? 4 / ether B)  NaBH4 / H2O C)  Na / C2H5OH D)  H2 / Ni,atmospheric pressure E)  None of the above can be used successfully." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   LiAlH4 / ether
B)   NaBH4 / H2O
C)   Na / C2H5OH
D)   H2 / Ni,atmospheric pressure
E)   None of the above can be used successfully.

Question 12

Organomagnesium halides are known as _______________.

Accepted Answer

The answer of Organomagnesium halides are known as _______________....

Question 13

In the reaction of carbonyl compounds with LiAlH4,the effective reducing species is:

Accepted Answer

A)   Li+
B)   Al+3
C)   AlH4-
D)   AlH3
E)   H-

Question 14

What product(s) is/are produced in the 1:1 reaction of sec-butylmagnesium bromide with

Accepted Answer

A)  
B)  
C)  
D)  
E)

Question 15

What would be the alkane C that is the product of the following reaction sequence?

Accepted Answer

A)  
B)  
C)  
D)  
E)

Question 16

For the ketone shown,indicate on the appropriate arrow which face is the re face,and which face is si?

Accepted Answer

The answer of For the ketone shown,indicate on the appropriate...

Question 17

The final product,E,in the following reaction sequence is,

Accepted Answer

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

Question 18

The final product,D,in the following reaction sequence  , would be:

Accepted Answer

A)  
B)  
C)  
D)  
E)

Question 19

Which of the following is the strongest base?

Accepted Answer

A)   RMgX
B)   Mg(OH) X
C)   RH
D)   H2O

Question 20

When nucleophilic addition to a carbonyl group occurs,the carbon attacked undergoes this hybridization change:

Accepted Answer

A)   sp2  →\rightarrow→  sp3
B)   sp  →\rightarrow→  sp2
C)   sp  →\rightarrow→ sp3
D)   sp3  →\rightarrow→  sp2
E)   sp2  →\rightarrow→ sp

Exam 12: Alcohols From Carbonyl Compounds Oxidation-Reduction and Organometallic Compounds

In the reaction of carbonyl compounds with LiAlH4,the effective reducing species is:

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For the aldehyde shown,indicate on the appropriate arrow which face is the re face,and which face is si?

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Predict the product(s)of the following reaction sequence:

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Predict the product(s)of the following reaction sequence:

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Which reagent(s) is/are capable of reducing the following ester to an aldehyde ?

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The final product,D,in the following reaction sequence , would be:

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Suggest a reasonable synthetic strategy for the synthesis of 2-methyl-3-hexanol from 1-butanol.

Correct Answerverified1-butanol i)PCC;ii)(CH3View AnswerShow Answer

List the following compounds in order of increasing level of oxidation:

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What would be the alkane C that is the product of the following reaction sequence?

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List the following compounds in order of increasing level of oxidation:

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What would be the final product,A,in the following reaction sequence?

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Organomagnesium halides are known as _______________.

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The final product,E,in the following reaction sequence is,

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For the ketone shown,indicate on the appropriate arrow which face is the re face,and which face is si?

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Which of the following is the strongest base?

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What product(s) is/are produced in the 1:1 reaction of sec-butylmagnesium bromide with

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Complete the following reaction sequence,giving structural details of all key intermediates. 2-methyl-1-pentene------------------ →\rightarrow→ i)BH3,THF ii)H2O2,NaOH iii)PCC,CH2Cl2 iv)CH3CH2C≡C: - Na+ v)NH4Cl

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What would be the product,D,of the following reaction sequence?

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What would be the final product,A,in the following reaction sequence?

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When nucleophilic addition to a carbonyl group occurs,the carbon attacked undergoes this hybridization change:

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In the reaction of carbonyl compounds with LiAlH₄,the effective reducing species is:

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1-butanol i)PCC;ii)(CH_{3View Answer}

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Complete the following reaction sequence,giving structural details of all key intermediates. 2-methyl-1-pentene------------------ $\rightarrow$ i)BH₃,THF ii)H₂O₂,NaOH iii)PCC,CH₂Cl₂ iv)CH₃CH₂C≡C: ^- Na⁺ v)NH₄Cl

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