CHEM 344: Quiz 4 Bromination of Acetanilide

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12 Terms

1
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How many 1H NMR signals for the product?

4

<p>4</p>
2
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The driving force for losing the proton in the last step of EAS?

To rearomatize the product

3
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How many 13C signals for the product?

8

<p>8</p>
4
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What is the splitting of Ha?

Doublet

<p>Doublet</p>
5
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What is the nucleophile?

Acetanilide

6
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What is the function of acetic acid?

To act as a solvent and polarize the Bromine bond

7
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What is a good safety measure for this experiment?

Do the experiment in the fume hood

8
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Is acetanilide an activated or deactivated group?

Activated

9
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Why is 30% sodium thiosulfate added?

To quench any unreacted Bromine in th emixture

10
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What is the first step in EAS?

Addition of the electrophile to the aromatic ring

11
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What is the theoretical yield of the brominated product if 600mg of acetanilide and 1.0 mL of 4.1M bromine solution in acetic acid?

878 mg

12
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Bromination of acetanilide. How is the product purified?

Recrystallization