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Exam 15: Enolate Anions

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Question 31

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The major product of the following sequence of reactions is

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Question 32

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Order the molecules according to decreasing acidity.

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

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Question 33

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The major product of the following reaction is

Which ester is likely to undergo a Claisen condensation to give this product?

The self condensation of Acetyl-CoA to Acetoacetyl-CoA is a Claisen reaction.

Which compounds will undergo decarboxylation upon heating?

Which is the product of the reaction of ethyl 3-phenylpropanoate with 1) sodium ethoxide, 2) aqueous Sodium hydroxide, 3) aqueous hydrochloric acid, and 4) heat?

What is the main product of the following reaction sequence?

Acetone reacts with 2 equivalents of molecular bromine (Br₂) in aqueous solution in the presence of sulfuric acid. What is the major product of this reaction sequence?

The starting material that completes the following reaction is,

What is the starting material of this reaction?

Which pair of esters is most likely to provide a useful Claisen synthesis?

What is the main product of the following reaction sequence?

What is the main product of the following reaction sequence?

Which of the following compounds can be used in an aldol self reaction to make a product with 5 or more carbon atoms? I. ethanal II. propanone (acetone) III. benzaldehyde IV. acetophenone

The major product of the following reaction between acetone and ethyl benzoate (1:1 ratio) is?

Which is the major product formed in the following reaction?

How many possible aldol products can be formed when acetone and ethanal are mixed in the presence of base?(Hint: Assume that no more than two molecules react with each other at a time.)

The Michael addition of dimethylamine and 3-buten-2-one produces the following product

Which is the major product of the following series of reactions?