Nitroethane → 1-Methylsulfanyl-4-(2-nitro-propenyl)-benzene
Reaktionsgleichung
[CH3:1][S:2][C:3]1[CH:10]=[CH:9][C:6]([CH:7]=O)=[CH:5][CH:4]=1.C([O-])(=O)C.[NH4+].[N+:16]([CH2:19][CH3:20])([O-:18])=[O:17]>>[CH3:1][S:2][C:3]1[CH:10]=[CH:9][C:6]([CH:7]=[C:19]([N+:16]([O-:18])=[O:17])[CH3:20])=[CH:5][CH:4]=1Komponenten
4
Versuchsvorschrift
A stirred solution of 4-methylsulfanyl-benzaldehyde (5.0 g, 28.8 mmol) and ammonium acetate (0.666 g, 8.6 mmol) in nitroethane (17 ml, 236 mmol) is heated at reflux for 5 hours. The solvent is removed and the residue is dissolved in CHCl3 (100 ml) and washed with water (100 ml) followed by brine (100 ml). After drying (MgSO4) the solvent is removed to give the title compound as a yellow solid which is used crude in the next step.
Aufarbeitung
- temperatureat reflux for 5 hours