Question

What purpose do each of the following play in the isolation and purification of ethyl 3- hydroxybutanoate?

a. Filtration with filter aid
b. Extraction with 3 portions of diethyl ether
c. Anhydrous sodium sulfate
d. Evaporation in the hood

Answer 1

Step-by-step explanation:

-Filter help — delete some big unreacted, undesirable species (norit is probably from what you are sorting through, its only carbon which cleans up things)

— extract with DCM because you are probably in an aqueous phase, and some butanoate is in it

- Anhydrous sodium absorbs excess of water (dries the material)

-evaporation in the hood to clear the DCM and crystallize the product.