反应详情

温度

80 °C

A mixture of 5-carboxy-2-oxindole (35 mg, 0.2 mmol), 5-(3-diethylamino-propyl)-1H-indole-2-carbaldehyde (51 mg, 0.2 mmol) and piperidine (0.1 mL) in ethanol (1 mL) was heated at 80° C. for 6 hours. The reaction was acidified with 1N HCl and the precipitate was collected by vacuum filtration, washed with 1N HCl, water and ethanol, dried to give the title compound.

1. filtrationthe precipitate was collected by vacuum filtration
2. washwashed with 1N HCl, water and ethanol
3. customdried