N-bromobutanimide → Ethyl 4-(2-bromo-4-fluorophenyl)-6-(bromomethyl)-2-(5-methyl-1,3,4-thiadiazol-2-yl)-1,4-dihydropyrimidine-5-carboxylate
Reaktionsgleichung
[Br:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[CH:9]1[C:14]([C:15]([O:17][CH2:18][CH3:19])=[O:16])=[C:13]([CH3:20])[NH:12][C:11]([C:21]2[S:22][C:23]([CH3:26])=[N:24][N:25]=2)=[N:10]1.C1C(=O)N([Br:34])C(=O)C1>>[Br:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[CH:9]1[C:14]([C:15]([O:17][CH2:18][CH3:19])=[O:16])=[C:13]([CH2:20][Br:34])[NH:12][C:11]([C:21]2[S:22][C:23]([CH3:26])=[N:24][N:25]=2)=[N:10]1Komponenten
3
Versuchsvorschrift
Ethyl 4-(2-bromo-4-fluorophenyl)-6-methyl-2-(5-methyl-1,3,4-thiadiazol-2-yl)-1,4-dihydropyrimidine-5-carboxylate (0.88 g, 2 mmol) was reacted with NBS (0.36 g, 2 mmol) according to the procedure as described in Example 1, Step B to give the title compound as a yellow solid (0.73 g, 70%). The compound was characterized by the following spectroscopic data:
Quellen und Nachweise
- ORD-Eintrag