4-Nitro-3-(trifluoromethyl)benzenesulfonamide → HCID 21482732, Verbindung

Reaktionsgleichung

[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([S:10]([NH2:13])(=[O:12])=[O:11])=[CH:6][C:5]=1[C:14]([F:17])([F:16])[F:15])([O-])=O.[H][H]>[Ru].C(O)C>[NH2:1][C:4]1[CH:9]=[CH:8][C:7]([S:10]([NH2:13])(=[O:11])=[O:12])=[CH:6][C:5]=1[C:14]([F:17])([F:15])[F:16]

Komponenten

Versuchsvorschrift

1.0 G. of 4-nitro-3-trifluoromethylbenzenesulfonamide is hydrogenated over 5% Ruthenium on charcoal in 20 ml. of absolute ethanol at room temperature under 40 lbs. of hydrogen for 5 hours. The hydrogen uptake is 100% of theory. The mixture is filtered, evaporated and dried affording 0.87 g. of crude solid. This material is recrystallized from toluene affording 0.75 g. of 4-amino-3-trifluoromethylbenzenesulfonamide, m.p. 150° to 151° C.