Question 1

What is the product of the following sequence?

Accepted Answer

The answer of What is the product of the following...

Question 2

What product(s)  result in the following reaction? Select all that apply.

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) A) and D)
F) B) and D)

Question 3

Which catalysts are common in the Stille coupling reaction?

Accepted Answer

A)   Pd(PPh3) 4
B)   Pd (OAc) 2
C)   PdCl2(PPh3) 2
D)   All of the aboveE) B) and C)
F) A) and D)

Question 4

Which of the following compounds has the most ionic character in the C-M bond?

Accepted Answer

A)   HC≡CMgBr
B)   HC≡CK
C)   HC≡CNa
D)   HC≡CLiE) All of the above
F) A) and B)

Question 5

Which of the following Gilman reagents could be used with a vinyl halide to afford the (E,E) -diene shown below? Select all that apply.

Accepted Answer

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

Question 6

Which of the following are advantages of the Suzuki coupling over the Stille coupling? Select all that apply.

Accepted Answer

A)  Organoboron compounds are less expensive than organotin compounds.
B)  Organoboron compounds are less toxic than organotin compounds.
C)  Formation of alkyl-aryl bonds is possible.
D)  The reaction requires a base.E) A) and D)
F) None of the above

Question 7

What is the product of the following sequence?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  none of the themF) A) and B)
G) All of the above

Question 8

Draw the product(s) of the following reaction:

Accepted Answer

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

Question 9

Which of the following statements is false regarding the reactivity of Gilman reagents?

Accepted Answer

A)   They react with acyl halides to give ketones.
B)   They react with α,β-unsaturated ketones to give alcohols.
C)   They react with alkyl halides or aryl halides in a coupling reaction.
D)   They are unreactive with tertiary halides.E) A) and B)
F) A) and D)

Question 10

The Heck reaction requires the presence of a base.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following R groups (R-SnBu3)  would undergo the slowest transmetallation in a Stille coupling reaction?

Accepted Answer

A)   alkyl
B)   aryl
C)   vinyl
D)   benzylE) B) and C)
F) A) and B)

Question 12

Explain why the solvent for a Grignard reaction must be free of water.

Accepted Answer

Water cons...

Question 13

Identify the coupling partners that can be used to prepare the following compound in a Heck reaction.

Accepted Answer

A)   p-nitrostyrene and (
E)  -(2-bromovinyl) benzene
B)   p-nitrostyrene and (Z) -(2-bromovinyl) benzene
C)   (
E)  -1-(2-bromovinyl) -4-nitrobenzene and styrene
D)   (Z) -1-(2-bromovinyl) -4-nitrobenzene and styreneE) A) and C)
F) B) and C)

Question 14

Which of the following would react fastest in the Corey-Posner/Whitesides-House reaction?

Accepted Answer

A)   cyclohexyl chloride
B)   cyclohexyl iodide
C)   tert-butyl chloride
D)   tert-butyl iodideE) A) and C)
F) All of the above

Question 15

What is the product of the following reaction?

Accepted Answer

The answer of What is the product of the following...

Question 16

Which of the following R groups (R-SnBu3)  would undergo the fastest transmetallation in a Stille coupling reaction?

Accepted Answer

A)   alkyl
B)   aryl
C)   vinyl
D)   benzylE) C) and D)
F) All of the above

Question 17

What is the product of the following reaction?

Accepted Answer

A)   (
E)  -1-phenyl-1-pentene
B)   (Z) -1-phenyl-1-pentene
C)   (
E)  -1-phenyl-2-pentene
D)   (Z) -1-phenyl-2-pentene
E)   2-phenyl-1-penteneF) A) and D)
G) B) and D)

Question 18

Which of the following compounds has the most nucleophilic carbon atom?

Accepted Answer

A)   I
B)   II
C)   III
D)   IVE) B) and D)
F) None of the above

Question 19

Identify the product when butanal reacts with one equivalent of a Grignard reagent.

Accepted Answer

A)   primary alcohol
B)   secondary alcohol
C)   tertiary alcohol
D)   carboxylic acid
E)   ketoneF) A) and E)
G) B) and E)

Question 20

What is the product of the following ring-closing metathesis reaction?

Accepted Answer

A)   I
B)   II
C)   III
D)   IVE) A) and C)
F) B) and D)

Exam 23: Introduction to Organometallic Compounds

The Heck reaction requires the presence of a base.

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Which catalysts are common in the Stille coupling reaction?

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What is the product of the following sequence?

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What is the product of the following ring-closing metathesis reaction?

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Which of the following compounds has the most nucleophilic carbon atom?

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What product(s) result in the following reaction? Select all that apply.

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Which of the following are advantages of the Suzuki coupling over the Stille coupling? Select all that apply.

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Draw the product(s) of the following reaction:

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Identify the coupling partners that can be used to prepare the following compound in a Heck reaction.

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What is the product of the following reaction?

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Explain why the solvent for a Grignard reaction must be free of water.

Correct AnswerverifiedWater cons...View AnswerShow Answer

What is the product of the following reaction?

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Which of the following Gilman reagents could be used with a vinyl halide to afford the (E,E) -diene shown below? Select all that apply.

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Which of the following R groups (R-SnBu3) would undergo the slowest transmetallation in a Stille coupling reaction?

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Which of the following R groups (R-SnBu3) would undergo the fastest transmetallation in a Stille coupling reaction?

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Which of the following would react fastest in the Corey-Posner/Whitesides-House reaction?

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Identify the product when butanal reacts with one equivalent of a Grignard reagent.

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Which of the following statements is false regarding the reactivity of Gilman reagents?

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What is the product of the following sequence?

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Which of the following compounds has the most ionic character in the C-M bond?

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Water cons...
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Which of the following R groups (R-SnBu₃) would undergo the slowest transmetallation in a Stille coupling reaction?

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Which of the following R groups (R-SnBu₃) would undergo the fastest transmetallation in a Stille coupling reaction?

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