Potassium Hydroxide → 7-(2-Hexyl-5-keto-cyclopentyl)-heptanoic acid

Participants

Reaction Steps

A potassium hydroxide (15 g, 0.27 mole) solution in methanol (30 ml) is added with a solution of ester (VIII) (50 g, 0.16 mole) in methanol (120 g). The reaction mixture is refluxed for 2 hours. It is then cooled and concentrated under reduced pressure, poured into water (200 ml) and acidified with conc. hydrochloric acid. It is then extracted with ethyl acetate (3×100 ml). The acid (IX) (13 g) is obtained. Yield=27%.

Provenance & Evidence