1-Methyl-3-aminopyrazole → 1-(1-methyl-1H-pyrazol-3-yl)-2-oxopyrrolidine-3-carbonitrile

関与物質

反応条件

反応手順

To a solution of 1-methyl-1H-pyrazol-3-amine (223 mg) in cyclopentyl methyl ether (5.0 mL) was added ethyl 1-cyanocyclopropanecarboxylate (0.90 ml). The reaction mixture was stirred at 120° C. for 30 hr, and diluted with ethyl acetate. The diluted solution was washed with water and saturated brine, and dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (237 mg).

情報源と証拠