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 icewater, 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