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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 357659Generated: October 30, 2026

Potassium Carbonate → 4-((4-Methylpiperazin-1-yl)methyl)benzonitrile

https://huagongshe.com/reaction/357659

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-MethylpiperazineHCID 53167—
Reactant4-(Bromomethyl)benzonitrileHCID 86996—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
Product4-((4-Methylpiperazin-1-yl)methyl)benzonitrileHCID 753761242.4%

Reaction Steps

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%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05840895
Source datasetuspto-grants-1998_11
ORD IDord-8bccc00daeb0424ca3293b744836ca8f
Source noteuspto-grants-1998_11