Acetonitrile → 1-(3-Chloro-5-trifluoromethyl-phenyl)-4-propyl-piperazine
Reaktionsgleichung
[Cl:1][C:2]1[CH:3]=[C:4]([N:12]2[CH2:17][CH2:16][NH:15][CH2:14][CH2:13]2)[CH:5]=[C:6]([C:8]([F:11])([F:10])[F:9])[CH:7]=1.[C:18]([O-])([O-])=O.[K+].[K+].[CH3:24][C:25]#N>>[Cl:1][C:2]1[CH:3]=[C:4]([N:12]2[CH2:17][CH2:16][N:15]([CH2:18][CH2:25][CH3:24])[CH2:14][CH2:13]2)[CH:5]=[C:6]([C:8]([F:10])([F:11])[F:9])[CH:7]=1Komponenten
4
Reaktionsbedingungen
- Temperatur
- 50 °C
Versuchsvorschrift
A suspension of 1-(3-Chloro-5-trifluoromethyl-phenyl)-piperazine (100 mg) and ground K2CO3 (200 mg) was stirred in CH3CN (30 mL) at room temperature. A solution of 1-bromo-propyl (52 mg) in CH3CN (5 mL) was added dropwise. The mixture was stirred at 50° C. overnight. The reaction mixture was filtered and the volatiles were evaporated in vacuum. The oily residue was chromatographed on a silica column with MeOH: CH2Cl2 (1:9 (v/v)) as eluent. Collection of the fractions containing pure product and evaporation of the solvent afforded the title compound (85 mg). MS m/z (relative intensity, 70 eV) 306 (M+, 25), 277 (bp), 234 (23), 206 (23), 179 (23).