反应详情

温度

70 °C

4 ml of methanol are added to a solution of 500 mg (2.99 mmol) of 4-nitrosalicylaldehyde (for preparation see Beilstein E IV, Vol. 8, 232) in 2 ml of ethanol. 95.2 mg (106 μl, 1.58 mmol) of ethylenediamine are added dropwise to the resulting yellow suspension. The reaction suspension is heated for 4 hours at 70° C. After cooling to room temperature, the precipitate formed is filtered off, washed with 2 ml of ethanol and dried to constant weight under a high vacuum at 30° C.

1. temperatureAfter cooling to room temperature
2. customthe precipitate formed
3. filtrationis filtered off
4. washwashed with 2 ml of ethanol
5. customdried to constant weight under a high vacuum at 30° C.