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Which of the following conditions and reagents were used to make this compound? Which of the following conditions and reagents were used to make this compound?   A)    B)    C)    D)    E)


A) Which of the following conditions and reagents were used to make this compound?   A)    B)    C)    D)    E)
B) Which of the following conditions and reagents were used to make this compound?   A)    B)    C)    D)    E)
C) Which of the following conditions and reagents were used to make this compound?   A)    B)    C)    D)    E)
D) Which of the following conditions and reagents were used to make this compound?   A)    B)    C)    D)    E)
E) Which of the following conditions and reagents were used to make this compound?   A)    B)    C)    D)    E)

F) C) and E)
G) C) and D)

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which product will be observed? which product will be observed?   A)    B)    C)    D)    E)


A) which product will be observed?   A)    B)    C)    D)    E)
B) which product will be observed?   A)    B)    C)    D)    E)
C) which product will be observed?   A)    B)    C)    D)    E)
D) which product will be observed?   A)    B)    C)    D)    E)
E) which product will be observed?   A)    B)    C)    D)    E)

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

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Which reagent would you use to accomplish the transformation shown here? Which reagent would you use to accomplish the transformation shown here?   A)    B)    C)    D)    E)


A) Which reagent would you use to accomplish the transformation shown here?   A)    B)    C)    D)    E)
B) Which reagent would you use to accomplish the transformation shown here?   A)    B)    C)    D)    E)
C) Which reagent would you use to accomplish the transformation shown here?   A)    B)    C)    D)    E)
D) Which reagent would you use to accomplish the transformation shown here?   A)    B)    C)    D)    E)
E) Which reagent would you use to accomplish the transformation shown here?   A)    B)    C)    D)    E)

F) A) and B)
G) A) and C)

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Draw the product of the following transformation: Draw the product of the following transformation:

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Provide the missing reagents in the following reaction sequence. Provide the missing reagents in the following reaction sequence.

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Predict the product of the following transformation, including the correct stereochemistry. Predict the product of the following transformation, including the correct stereochemistry.

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List three ways to accomplish the transformation shown here. List three ways to accomplish the transformation shown here.

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H2(g) with a metal catalyst suc...

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Devise a multistep synthesis of the target molecule from the given starting material.Show the reagents needed for each step and the product of each step. Devise a multistep synthesis of the target molecule from the given starting material.Show the reagents needed for each step and the product of each step.

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Devise a multistep synthesis of the target molecule from the given starting material. Show the reagents needed for each step and the product of each step. Devise a multistep synthesis of the target molecule from the given starting material. Show the reagents needed for each step and the product of each step.

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Which product will be observed? Which product will be observed?   A)    B)    C)    D)    E)  c and d


A) Which product will be observed?   A)    B)    C)    D)    E)  c and d
B) Which product will be observed?   A)    B)    C)    D)    E)  c and d
C) Which product will be observed?   A)    B)    C)    D)    E)  c and d
D) Which product will be observed?   A)    B)    C)    D)    E)  c and d
E) c and d

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

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Provide the missing reagents and structures. Provide the missing reagents and structures.

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Starting with an alkene, which of these methods would produce at least one carbonyl compound as the major product? Assume appropriate aqueous workup in all cases.


A) OsO4
B) H3O+
C) H2 and Lindlar's catalyst
D) O3, then H2O2
E) Hg(OAc) 2 and H2O , then NaBH4

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

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The molecule shown was the exclusive product of an ozonolysis reaction followed by a reductive workup.Draw the structures of two possible starting materials that could have been used. The molecule shown was the exclusive product of an ozonolysis reaction followed by a reductive workup.Draw the structures of two possible starting materials that could have been used.

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Provide two different precursors and the reagents needed to transform them to the compound shown here. Provide two different precursors and the reagents needed to transform them to the compound shown here.

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Consider alkenes A and B . Consider alkenes  A  and B .   Which of the following is easily accessible from either  A  or B  ? A)    B)    C)    D)    E)  Both c and d Which of the following is easily accessible from either A or B ?


A) Consider alkenes  A  and B .   Which of the following is easily accessible from either  A  or B  ? A)    B)    C)    D)    E)  Both c and d
B) Consider alkenes  A  and B .   Which of the following is easily accessible from either  A  or B  ? A)    B)    C)    D)    E)  Both c and d
C) Consider alkenes  A  and B .   Which of the following is easily accessible from either  A  or B  ? A)    B)    C)    D)    E)  Both c and d
D) Consider alkenes  A  and B .   Which of the following is easily accessible from either  A  or B  ? A)    B)    C)    D)    E)  Both c and d
E) Both c and d

F) B) and C)
G) B) and E)

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Which of the following statements about treatment of an alkyne with sodium metal in ammonia is false? Which of the following statements about treatment of an alkyne with sodium metal in ammonia is false?   A)  The product of the reaction is a trans alkene. B)  A radical anion is protonated by solvent. C)  This reaction provides the opposite stereochemistry to that of treating an alkyne with  H<sub>2</sub>  in the presence of Lindlar's catalyst. D)  Sodium amide forms as the reaction proceeds. E)  A single electron is donated by sodium to a     orbital in the alkyne.


A) The product of the reaction is a trans alkene.
B) A radical anion is protonated by solvent.
C) This reaction provides the opposite stereochemistry to that of treating an alkyne with H2 in the presence of Lindlar's catalyst.
D) Sodium amide forms as the reaction proceeds.
E) A single electron is donated by sodium to a Which of the following statements about treatment of an alkyne with sodium metal in ammonia is false?   A)  The product of the reaction is a trans alkene. B)  A radical anion is protonated by solvent. C)  This reaction provides the opposite stereochemistry to that of treating an alkyne with  H<sub>2</sub>  in the presence of Lindlar's catalyst. D)  Sodium amide forms as the reaction proceeds. E)  A single electron is donated by sodium to a     orbital in the alkyne. orbital in the alkyne.

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

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Which of the following is not a 1,3-dipolar reagent?


A) Which of the following is not a 1,3-dipolar reagent? A)    B)    C)    D)    E)
B) Which of the following is not a 1,3-dipolar reagent? A)    B)    C)    D)    E)
C) Which of the following is not a 1,3-dipolar reagent? A)    B)    C)    D)    E)
D) Which of the following is not a 1,3-dipolar reagent? A)    B)    C)    D)    E)
E) Which of the following is not a 1,3-dipolar reagent? A)    B)    C)    D)    E)

F) A) and E)
G) D) and E)

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Which reagent would you use to accomplish the transformation shown here? Which reagent would you use to accomplish the transformation shown here?   A)  diazomethane B)  bromoform, then potassium tert-butoxide C)  trifluoroperacetic acid D)  phenylmagnesium bromide in ether, followed by aqueous acid workup E)  osmium tetroxide


A) diazomethane
B) bromoform, then potassium tert-butoxide
C) trifluoroperacetic acid
D) phenylmagnesium bromide in ether, followed by aqueous acid workup
E) osmium tetroxide

F) A) and B)
G) A) and E)

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Devise a multistep synthesis of the target molecule from the given starting material.Show the reagents needed for each step and the product of each step.Assume that the target is racemic; only one enantiomer is shown. Devise a multistep synthesis of the target molecule from the given starting material.Show the reagents needed for each step and the product of each step.Assume that the target is racemic; only one enantiomer is shown.

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Explain the difference between a heterogeneous catalyst and a homogeneous catalyst.

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A heterogeneous catalyst is on...

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