Hydrochloric Acid → HCID 20304491, compound

Participants

Reaction Steps

A solution of 3.95 g of 2-[4-(2-carboxyethyl)phenyl]-1-dimethylamino-4-phenyl-1-butene-3,4-dione in 100 ml of 2% potassium hydroxide solution was stirred at room temperature for 31/2 hrs. The reaction mixture was poured onto 300 ml of ice-water, acidified with 100 ml of 1N hydrochloric acid and extracted with methylene chloride. The organic extract was washed with water, dried, filtered and evaporated. Recrystallization of a sample of the residue from methylene chloride-petroleum ether gave 2-hydroxy-2-phenyl-4-[4-(2-carboxyethyl)phenyl]-3(2H)-furanone as colorless crystals, m.p. 89°-95° dec., after drying at 50° C.

Provenance & Evidence