2,5-Dibromo-3-methylpyridine → 1-(5-Bromo-3-methyl-pyridin-2-yl)-3-(R)-methyl-piperazine

Participants

Reaction Steps

Heat a solution of 2,5-dibromo-3-methyl-pyridine (Chontech Inc., Waterford, Conn.) (2.0 g, 7.97 mmol), (R)-2-methyl-piperazine (ChemPacific Corp., Baltimore, Md.; 3.2 g, 31.9 mmol) in DMA at 130° C. for 16 h. Partition the reaction mixture between water and EtOAc. Wash the EtOAc layer with water (1×) and brine (1×), dry (Na2SO4) and concentrate under reduced pressure to give 1-(5-bromo-3-methyl-pyridin-2-yl)-3-(R)-methyl-piperazine as a solid.

Provenance & Evidence