Maleic Anhydride → 1H-Pyrrole-2,5-dione, 1-(2,4,6-tribromophenyl)-
Reaktionsgleichung
[Br:1][C:2]1[CH:8]=[C:7]([Br:9])[CH:6]=[C:5]([Br:10])[C:3]=1[NH2:4].[C:11]1(=O)[O:16][C:14](=[O:15])[CH:13]=[CH:12]1.[Sn](Cl)Cl>>[Br:1][C:2]1[CH:8]=[C:7]([Br:9])[CH:6]=[C:5]([Br:10])[C:3]=1[N:4]1[C:14](=[O:15])[CH:13]=[CH:12][C:11]1=[O:16]Komponenten
4
Reaktionsbedingungen
- Temperatur
- 142 °C
Versuchsvorschrift
A mixture of 2,4,6-tribromoaniline (1.20g, 3.64 mmol), maleic anhydride (0.83g, 8.5 mmol) and tin(II) chloride (0.064g, 0.34 mmol) is heated to 142° C. with mixing and held at this temperature for 1.9 hours. The reaction mixture is cooled, extracted with xylene, filtered and the resulting filtrate water washed. Solvent removal yielded N-(2,4,6-tribromophenyl)maleimide. Analysis by High Pressure Liquid Chromatography (HPLC) showed conversion of 2,4,6-tribromoaniline to be 99.9% and selectivity to N-(2,4,6-tribromophenyl)maleimide based on reacted 2,4,6-tribromoaniline of 75.0%.