Hydrochloric Acid → HCID 13784605, compound

Participants

Reaction Steps

After 10 ml of ethanol was added to 6.0 g of 4-(3-cyano-2-oxo-8-chromenyloxy)butyric acid ethyl ester, 50 ml of 2N aqueous solution of sodium hydroxide was added to the mixture and the resultant was stirred for 5 minutes at room temperature. Then the reaction mixture was poured into a mixture of 10 ml of concentrated hydrochloric acid and 200 ml of ice water and a precipitate was filtered, which was recrystallized to give a desired compound.

Provenance & Evidence