1-(3-(Trifluoromethyl)phenyl)piperazine → HCID 44197706, compound

Participants

Reaction Steps

TBTU (240 mg; 0.75 mmol) and N-methylmorpholine (206 μl; 189 mg; 1.87 mmol) were added to a solution of 6-(4-methoxy-3,5-dimethylphenyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridine-2-carboxylic acid hydrochloride (210 mg; 0.63 mmol) in DMF (1 ml). The reaction mixture was stirred vigorously for 30 min at room temperature and then 1-(3-trifluoromethylphenyl)piperazine (140 μl; 172 mg; 0.75 mmol) was added. The reaction mixture was stirred for 4 h at room temperature, then poured onto water and extracted with chloroform. The organic phase was dried over MgSO4, filtered and concentrated to small volume. The raw product was purified by column chromatography on silica gel (chloroform). Yield: 198 mg (62%).

Provenance & Evidence