ALPHA C

• A) Only I

• B) Only II

• C) Only III

• D) I and II are equally stable

• A) I

• B) II

• C) III

• D) IV

• A) I

• B) II

• C) III

• D) IV

4. Why is the enolate of acetone less basic than the allyl anion derived from propene?

• A) Because there are more atoms in acetone

• B) Because there are more resonance structures for the enolate of acetone

• C) It isn't; the allyl anion is less basic.

• D) One of the resonance structures for the enolate places the negative charge on the more electronegative oxygen.

• A) I

• B) II

• C) III

• D) IV

6. Will acetone be completely deprotonated by potassium tert-butoxide?

• A) Yes

• B) No

7. Will acetophenone be completely deprotonated by lithium diisopropylamide (LDA)?

• A) Yes

• B) No

• A) I

• B) II

• C) III

• D) IV

9. If you want to form a thermodynamic enolate, you want to:

• A) Keep the reaction as cold as possible.

• B) Use an aprotic solvent such as THF.

• C) Use a protic solvent such as ethanol.

• D) Use a carboxylic acid.

10. If you want to form a kinetic enolate, you want to:

• A) Use a strong, non-nucleophilic base such as LDA.

• B) Use a protic solvent.

• C) Use a low temperature.

• D) Both use a strong, non-nucleophilic base such as LDA and use a low temperature.