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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1398083Generated: November 1, 2026

p-Fluoronitrobenzene → 4-(4-Nitrophenyl)piperazin-2-one

https://huagongshe.com/reaction/1398083

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-FluoronitrobenzeneHCID 9590—
ReactantPotassium CarbonateHCID 11430—
ReactantPiperazin-2-oneHCID 231360—
SolventChloroformHCID 6212—
SolventDimethylformamideHCID 6228—
Product4-(4-Nitrophenyl)piperazin-2-oneHCID 1852199243%

Reaction Conditions

Temperature140 °C

Reaction Steps

To a solution of 1.275 g (9.04 mmol) of 4-fluoronitrobenzene in 30 mL of N,N-dimethylformamide were added 1.879 (13.56 mmol) of potassium carbonate and 905 mg (9.04 mmol) of piperazine-2-one, and the mixture was stirred for 1 hour at 130° C. and for 1 hour at 140° C. The reaction mixture was cooled to room temperature and diluted with chloroform, then, insoluble substances were removed off by filtration. The filtrate was condensed under reduced pressure and the resulting solid was washed with ethanol to give 859 mg (43%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08901315B2
Source datasetuspto-grants-2014_12
ORD IDord-2a5b3c3d9b7a4e8584564826a4e388d2
Source noteuspto-grants-2014_12