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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 497323Generated: October 30, 2026

Water → Piperazine, 1-[1-(4-fluorophenyl)-2-(1-piperazinyl)ethyl]-4-methyl-

https://huagongshe.com/reaction/497323

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 11731626HCID 11731626—
SolventEthanolHCID 702—
ProductPiperazine, 1-[1-(4-fluorophenyl)-2-(1-piperazinyl)ethyl]-4-methyl-HCID 1095775098.8%

Reaction Steps

1.25 g of 1-Ethoxycarbonyl-4-[2-(4-fluorophenyl)-2-(4-methylpiperazino)ethyl]piperazine was dissolved in 2 ml of ethanol, and 1.3 g of potassium hydroxide was added, followed by reflux with heating for an hour. The reaction solution was cooled to room temperature and, after addition of 2 ml of water, extracted with ethyl acetate, and the organic layer was dried over anhydrous sodium sulfate. After removal of the drying agent by filtration, the filtrate was concentrated under reduced pressure to give 1.0 g of a crude 1-[2-(4-fluorophenyl)-2-(4-methyl-piperazino)ethyl]piperazine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949552B2
Source datasetuspto-grants-2005_09
ORD IDord-6b841a51dc914169ba715046dfc763ee
Source noteuspto-grants-2005_09