Potassium Carbonate → 5-Benzoyl-indan-2-carboxylic acid

Participants

Reaction Steps

To a 100 cm3 reaction vessel equipped with a stirrer and a cooler are successively added: 2.2 g (0.026 mole+50%) of potash dissolved in 40 cm3 of water and 7.3 g (0.026 mole) of methyl 5-benzoyl-indane-2-carboxylate dissolved in 40 cm3 of methanol. The mixture is heated at reflux temperature for 1 hour, the methanol evaporated and the mixture diluted with water; the alkaline mixture is then washed with ether and then acidified by the addition of hydrochloric acid. A precipitate forms which is filtered, washed with water and dried. After recrystallization from ethyl acetate the melting point is steady at 140°-142° C. (in a capillary tube).

Provenance & Evidence