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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1071982Generated: October 30, 2026

Piperazine → HCID 22390778, compound

https://huagongshe.com/reaction/1071982

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantPotassium CarbonateHCID 11430—
Reactant3-(2-bromoethyl)BenzofuranHCID 15075480—
SolventAcetonitrileHCID 6342—
ProductHCID 22390778HCID 22390778—

Reaction Steps

84 mmol of 2-(benzofuran-3-yl)-1-bromoethane, 67 mmol of piperazine and 56 mmol of potassium carbonate are added to 200 ml of acetonitrile. After refluxing for 4 hours, the reaction mixture is cooled and then concentrated. The residue is taken up in dichloromethane, is washed with water, dried, filtered and then concentrated under reduced pressure. Chromatography over silica gel (dichloromethane/ethanol: 90/10) allows the expected product to be isolated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06908922B2
Source datasetuspto-grants-2005_06
ORD IDord-be9cb1a11fde4cb094d72f2ec03bcb48
Source noteuspto-grants-2005_06