Piperidine → HCID 86605453, Verbindung

Reaktionsgleichung

Br[CH2:2][C:3]1[CH:8]=[CH:7][C:6]([NH:9][C:10](=[O:15])[C:11]([F:14])([F:13])[F:12])=[CH:5][C:4]=1[C:16]([F:19])([F:18])[F:17].[NH:20]1[CH2:25][CH2:24][CH2:23][CH2:22][CH2:21]1>C(#N)C.O>[F:12][C:11]([F:14])([F:13])[C:10]([NH:9][C:6]1[CH:7]=[CH:8][C:3]([CH2:2][N:20]2[CH2:25][CH2:24][CH2:23][CH2:22][CH2:21]2)=[C:4]([C:16]([F:19])([F:18])[F:17])[CH:5]=1)=[O:15]

Komponenten

Versuchsvorschrift

To a solution of N-(4-bromomethyl-3-trifluoromethyl-phenyl)-2,2,2-trifluoro-acetamide (Stage 128.3; 1.465 g, 4.19 mmol) in acetonitril (35 ml) under N2-atmosphere, piperidine (1.25 ml, 12.7 mmol) is added. After 30 min at rt the reaction mixture is diluted with water and partially concentrated in vacuo. The aqueous residue Is acidified to pH 5 by addition of 0.1 N HCl and extracted 3× with AcOEt. The organic layers are washed with water and brine, dried (Na2SO4) and concentrated. Column chromatography (SiO2; hexane/AcOEt 3:2) gives the title compound: MS: [M+1]+=355; 1H-NMR (DMSO-d6): 11.48 (s, HN), 8.02 (s, 1H), 7.91 (dd, 1H), 7.77 (d, 1H), 3.52 (s, 2H), 2.32 (sb, 4H), 1.50 (m, 4H), 1.40 (m, 2H).