Piperidine → HCID 131720169, compound

Participants

Reaction Steps

To a solution of 5-carboxy-3-[(7-azaindol-3-yl)methylen]-2-oxindole (0.305 g, 1 mmol) in ethanol (10 ml) was added piperidine (0.085 g, 1 mmol) and the mixture was concentrated under vacuum to a small volume. To the ice-cooled mixture ether was added, the precipitate filtered off, washed with ice-cooled ether and dried under vacuum. Thus almost pure title compound was obtained in about 80% yield.

Provenance & Evidence