In: Chemistry
the product in a Coumarin synthesis lab is soluble in aqueous base. Why?
1.The base deprotonates α- to the carbonyl to form an enolate ion.
2.The base deprotonates α- to the phenol to form a phenylate anion.
3.The base deprotonates the phenol hydroxyl to form a phenoxide anion.
4.The product is water soluble.
Answer: 3.The base deprotonates the phenol hydroxyl to form a phenoxide anion.
Reason: I have attached Dry lab page below for your kind consideration and hope the same product you synthesized, if not no worries - the phenol hydroxyl group is deprotonated in all types of products formed from Coumarin.