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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 227300Generated: October 26, 2026

Potassium Carbonate → 1-(5-Chloro-2-nitrophenyl)-4-methylpiperazine

https://huagongshe.com/reaction/227300

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-MethylpiperazineHCID 53167—
Reactant4-Chloro-2-fluoro-1-nitrobenzeneHCID 69691—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product1-(5-Chloro-2-nitrophenyl)-4-methylpiperazineHCID 2829618—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 4-chloro-2-fluoro-nitrobenzene (28.5 mmol), 1-methylpiperazine (28.5 mmol) and K2CO3 (37.0 mmol) in DMF is stirred at 100° C. for 16 h and diluted with water and EtOAc. The phases are separated and the aqueous phase is extracted with EtOAc. The organic phase and the extracts are combined, washed sequentially with water and brine, dried over Na2SO4 and dried in vacuo. The resultant residue is chromatographed (silica gel, 10% methanol in EtOAc as eluent) to afford the title product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560470B2
Source datasetuspto-grants-2009_07
ORD IDord-a730efe6c8eb4414844be7365e25ce56
Source noteuspto-grants-2009_07