Question

Correlate the microscale procedures needed to accomplish the given steps (1-5) to isolate pure isopentyl acetate (banana oil) from the reaction mixture Not all of the steps on the left are required.) The lower aqueous layer is 1 This deprotonates unreacted acetic acid, making a water soluble salt. removed using a Pasteur pipette and discarded. The mixture is stirred, capped and gently shaken, with frequent venting. 2 of carbon dioxide gas is complete This ensures that the evolution The dry ester is decanted using a Pasteur pipette to a clean 3 This removes byproducts. conical vial The lower aqueous layer is 4 This removes water from the removed using a Pasteur pipette and the organic layer discarded. product. Aqueous sodium bicarbonate is 5 This separates the sodium sulfate from the ester added to the reaction mixture Granular anhydrous sodium sulfate is added to the aqueous layer The organic layer is dried over granular anhydrous sodium sulfate. The sodium sulfate is removed by gravity filtration.

Answer 1

1 correlates with E. Aqueous Sodisum bicarbonate is added to the mixture to deprotonate unreacted acetic acid.

2 correlates with B

3 correlates with C

4 correlates with G

5 correlates with H