Piperazine → 1-[[2-(3,4,5-Trimethoxyphenyl)pyridin-4-yl]-methyl]piperazine

Participants

Reaction Steps

4-Chloromethyl-2-(3,4,5-trimethoxyphenyl)pyridine (13.52 g) and piperazine (11.89 g) were dissolved in DMF (100 mL), and to the solution potassium carbonate (15.89 g) was added. The mixture was stirred at room temperature for 5 hours. After the reaction mixture was concentrated under reduced pressure, chloroform was added to the residue, and the mixture was washed with water, dried over anhydrous magnesium sulfate and then concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (chloroform:methanol=20:1 to chloroform:ammonia-saturated methanol=10:1) to obtain a free base of the title compound.

Provenance & Evidence