Piperidine → HCID 19842210, compound

Participants

Reaction Steps

3-Oxo-2-(5-chloro-2-pyridyl)isoindoline-1-acetic acid (1 g) and triethylamine (0.8 g) were dissolved in 20 ml of dry tetrahydrofuran and, under ice-cooling with stirring, 0.39 g of ethoxycarbonyl chloride was added portionwise. The mixture was stirred for 30 minutes, 0.56 g of piperidine was added, and the whole mixture was stirred for an additional 30 minutes. The reaction mixture was poured into 500 ml of ice water, followed by extraction with ethyl acetate. The extract was washed with water and dried. The ethyl acetate was then distilled off and the residue was treated with ether. The resulting crystals thus obtained were collected by filtration and recrystallized from ethyl acetate to give 0.32 g of colorless crystals, melted at 165°-166° C.

Provenance & Evidence