Hydrochloric Acid → HCID 13646820, compound

Participants

Reaction Steps

2-Cyclopentyl-2-methyl-5-hydroxy-6,7-dichloro-1-indanone (15.5 g., 0.05 mole) is dissolved in a 10% sodium hydroxide solution (50 ml.). The solution is heated to reflux and beta-propiolactone (36.0 g., 0.5 mole) is added at such a rate as to keep the reaction mixture refluxing. The reaction mixture is kept basic by the addition of 10% sodium hydroxide. The reaction mixture is cooled and acidified with dilute hydrochloric acid. The product is extracted with ether and extracted from the ether solution with a 5% solution of sodium bicarbonate. Acidification affords the desired product.

Provenance & Evidence