Sodium Hydroxide → HCID 11778220, compound

Participants

Reaction Steps

A mixture of 3-(1-acetyl-4-piperidyl)-1-phenylindole (5.0 g) and 2N aqueous sodium hydroxide solution (30 ml) in ethanol (30 ml) was refluxed for 7.5 hours. Then, 2N aqueous sodium hydroxide (30 ml) was further added and the mixture was refluxed for another 5 hours. Ethanol was then distilled off and the oily residue was extracted with a mixture of chloroform and methanol (30:1 V/V). The extract was washed with water, dried over magnesium sulfate and concentrated under reduced pressure. The residue was subjected to column chromatography on alumina (500 g) and elution was carried out with a mixture of chloroform and methanol (100:1 to 5:1 V/V). The fractions containing the desired compound were combined and the solvent was distilled off under reduced pressure to give 1-phenyl-3-(4-piperidyl)indole (3.0 g). The following physical data are those of the hydrochloride.

Provenance & Evidence