Triethylamine → HCID 86751296, compound

Participants

Reaction Steps

To an ice-cooled mixture of (2R)-2-benzyl-1-[3,5-bis(trifluoromethyl)benzoyl]piperazine (0.3 g) and triethylamine (0.39 ml) in dimethylformamide (8 ml) was added 3-(chloromethyl)pyridine hydrochloride (0.12 g). The reaction mixture was stirred at the same temperature for 30 minutes and then at room temperature for 2 hours. Additional triethylamine (0.39 ml) and 3-(chloromethyl)pyridine hydrochloride (0.12 g) were added and the resulting mixture was stirred overnight. The reaction mixture was filtered and the filtrate was concentrated and subjected to a chromatography on a silica gel eluting with a mixture of toluene and ethyl acetate (5:1). The eluent was treated with 4N hydrogen chloride in ethyl acetate solution to give (2R)-2-benzyl-1-[3,5-bis(trifluoromethyl)benzoyl]-4-(pyridin-3-yl-methyl)piperazine dihydrochloride.

Provenance & Evidence