反应详情

To a stirred solution of p-tolylamine (21.43 g, 0.2 mol) in ethanol (300 mL) was added 3-Nitro-benzaldehyde (30.22 g, 0.2 mol). The mixture was stirred overnight at room temperature. After filtration, the yellow solid was dried under infrared lamp, and the filtrate was concentrated, treated with ethanol again. The precipitated solid was filtered to afford 44.5 g of [1-(3-nitro-phenyl)-meth-(E)-ylidene]-p-tolyl-amine (Yield: 93%).

1. filtrationAfter filtration
2. customthe yellow solid was dried
3. concentrationthe filtrate was concentrated
4. additiontreated with ethanol again
5. filtrationThe precipitated solid was filtered