Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 974994Generated: October 25, 2026

Potassium Carbonate → N-[2-(3,4-Dimethoxyphenyl)ethyl]homopiperazine

https://huagongshe.com/reaction/974994

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantHexahydro-1,4-diazepineHCID 68163—
Reactant4-(2-Chloroethyl)-1,2-dimethoxybenzeneHCID 3015359—
SolventAcetonitrileHCID 6342—
ProductN-[2-(3,4-Dimethoxyphenyl)ethyl]homopiperazineHCID 1502360877.1%

Reaction Steps

32.27 g of homopiperazine, 13.2 g of 2-(3,4-dimethoxyphenyl)ethyl chloride and 71.3 g of potassium carbonate were added to 500 ml of acetonitrile. The obtained mixture was heated under reflux for 20 hours, cooled and filtered. The filtrate was concentrated under a reduced pressure to obtain a residue. This residue was extracted with ether thrice. The extracts were combined, dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated under a reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent: chloroform/methanol/isopropylamine (100:10:1)) to obtain 13.40 g of the title compound as a yellow oil (yield: 77%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05607953
Source datasetuspto-grants-1997_03
ORD IDord-14df1013ddaf490bb330846c98e166b5
Source noteuspto-grants-1997_03