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What is the general name of the product of a crossed Claisen reaction between a ketone and an ester?


A) b-Keto ester
B) a,b-Dicarbonyl compound
C) g-Dicarbonyl compound
D) b-Dicarbonyl compound

E) A) and B)
F) None of the above

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What aldehyde or ketone is needed to prepare the following compound by an Aldol reaction? What aldehyde or ketone is needed to prepare the following compound by an Aldol reaction?   A) I B) II C) III D) IV


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

E) None of the above
F) B) and C)

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What is the major product of the following reaction? What is the major product of the following reaction?   A) I B) II C) III D) IV


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

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

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What product (including stereochemistry) is formed in the following intermolecular reaction? What product (including stereochemistry) is formed in the following intermolecular reaction?   A) I B) II C) III D) IV


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

E) B) and C)
F) C) and D)

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Which of the following bicyclic ring systems can be prepared by an intermolecular Robinson annulation? Which of the following bicyclic ring systems can be prepared by an intermolecular Robinson annulation?   A) I B) II C) III D) IV


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

E) C) and D)
F) B) and C)

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What is the general name for the class of products formed in an Aldol condensation reaction?


A) b,g-Unsaturated carbonyl compound
B) a,b-Unsaturated carbonyl compound
C) a,g-Unsaturated carbonyl compound
D) b-Hydroxy carbonyl compound

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

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What is the general name for the reaction product formed in a Claisen reaction?


A) b-Hydroxy ester
B) b-Keto ester
C) a-Keto ester
D) g-Hydroxy ester

E) A) and D)
F) B) and C)

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What cyclic product is formed in the intramolecular Aldol condensation when the following compound is treated with aqueous NaOH? What cyclic product is formed in the intramolecular Aldol condensation when the following compound is treated with aqueous NaOH?   A) I B) II C) III D) IV


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

E) A) and B)
F) None of the above

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Which of the following carbonyl compounds does not undergo Aldol addition reactions when treated with aqueous sodium hydroxide? Which of the following carbonyl compounds does not undergo Aldol addition reactions when treated with aqueous sodium hydroxide?   A) I B) II C) III D) IV


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

E) A) and C)
F) None of the above

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What is the Aldol addition product formed from the reaction of acetone,(CH3) 2CO,with itself? What is the Aldol addition product formed from the reaction of acetone,(CH<sub>3</sub>) <sub>2</sub>CO,with itself?   A) I B) II C) III D) IV


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

E) B) and C)
F) A) and D)

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There are several variations of the Aldol reaction.Which of the following types of reactants leads to only one possible product with the Aldol condensation reaction?


A) Two different aldehydes with a-hydrogens are able to form a single aldol condensation product.
B) Two different ketones with a-hydrogens are able to form a single aldol condensation product.
C) Any aldehyde and ketone mixed together can react to form a single condensation product.
D) Any pair of aldehyde or ketone reactants where one of the reactants has no a-hydrogens will lead to a single aldol product.

E) A) and B)
F) C) and D)

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