反应详情

A mixture of 4-trifluoromethyl-phenylamine (10.0 g, 62.06 mmol) and 3-Nitro-benzaldehyde (9.3 g, 62.06 mmol) in toluene was heated to reflux for 5 h with a Dean-stark trap. After evaporation of the toluene, the reaction mixture was heated for another 1 h at this temperature to afford 18.3 g of [1-(3-nitro-phenyl)-meth-(E)-ylidene]-(4-trifluoromethyl-phenyl)-amine. The mixture was used in next step without further purification.

1. temperaturewas heated
2. temperatureto reflux for 5 h with a Dean-stark trap
3. customAfter evaporation of the toluene
4. temperaturethe reaction mixture was heated for another 1 h at this temperature