反应详情

Under the argon atmosphere, 4-methylpiperazine (2.00 g, 20.0 mmole) and potassium carbonate (3.41 g, 24.7 mole ) were added to a solution of 4-cyanobenzyl bromide (3.20 g, 16.3 mole) in tetrahydrofuran (30 ml). After stirring at room temperature for 18 hours, the mixture was diluted with water and extracted with ethyl acetate. The organic layer was washed with water followed by a saturated aqueous saline, and dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure to give 4(4-methyl-1-piperazinylmethyl)benzonitrile as a colorless crystalline powder (1.49 g, 42.4%).

1. extractionextracted with ethyl acetate
2. washThe organic layer was washed with water
3. dry with materialdried over anhydrous magnesium sulfate
4. customThe solvent was removed under reduced pressure