反应详情

27.6 g of o-nitroaniline and 21.4 g of 2-pyridine aldehyde are heated in 200 ml of toluene for 10 hours, and the water formed is collected by means of a water separator. 500 ml of diethyl ether are then added to the solution, and the crystals which precipitate are filtered off with suction.

1. customis collected by means of a water separator
2. addition500 ml of diethyl ether are then added to the solution
3. filtrationthe crystals which precipitate are filtered off with suction