Benzoyl chloride → HCID 10131568, compound

Participants

Reaction Steps

To a solution of 1,4-dihydrospiro[cyclopent[b]indole-3(2H),4'-piperidine] hydrochloride (1.0 g) and potassium carbonate (0.8 g) in acetonitrile (10 ml) was added benzoyl chloride (0.5g), under nitrogen, with stirring. The reaction mixture was heated under reflux for 5 hrs and allowed to cool to ambient temperature. Ethyl acetate (200 ml) was added, and the mixture was washed with water and saturated sodium hydroxide solution, dried over anhydrous magnesium sulfate, filtered and the filtrate was concentrated in vacuo. The residue was flash chromatographed (silica gel), eluting with 0.5% methanol/dichloromethane. The appropriate fractions were collected and concentrated to give 0.40 g (33%) of product, mp 231°-232° C.

Provenance & Evidence