Ethanol → Ethyl 3-benzylamino-5-sulphamyl-4-(m-toluidino)-benzoate
Reaktionsgleichung
[NH2:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([S:19](=[O:22])(=[O:21])[NH2:20])[C:10]=1[NH:11][C:12]1[CH:13]=[C:14]([CH3:18])[CH:15]=[CH:16][CH:17]=1)[C:5]([OH:7])=[O:6].[CH2:23](Br)[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1.[CH2:31](O)[CH3:32]>>[CH2:23]([NH:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([S:19](=[O:22])(=[O:21])[NH2:20])[C:10]=1[NH:11][C:12]1[CH:13]=[C:14]([CH3:18])[CH:15]=[CH:16][CH:17]=1)[C:5]([O:7][CH2:31][CH3:32])=[O:6])[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1Komponenten
4
Versuchsvorschrift
A mixture of 3-amino-5-sulphamyl-4-(m-toluidino)-benzoic acid (1.5 g), benzyl bromide (2.5 g), and anhydrous ethanol (50 ml) was heated under reflux for 10 hours. The resulting solution was cooled, and the precipated ethyl 3-benzylamino-5-sulphamyl-4-(m-toluidino)-benzoate was collected by suction. After recrystallization from ethanol, the compound had a melting point of 169°-170° C.