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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2184828Generated: October 30, 2026

Water → 1-[N-(2-nitrophenyl)-2-aminoethyl]-4-(2-methoxyphenyl)piperazine

https://huagongshe.com/reaction/2184828

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1-Chloro-2-nitrobenzeneHCID 6945—
ReactantPotassium CarbonateHCID 11430—
Reactant1-(2-Aminoethyl)-4-(2-methoxyphenyl)piperazineHCID 10399186—
Solvent1-ButanolHCID 263—
Product1-[N-(2-nitrophenyl)-2-aminoethyl]-4-(2-methoxyphenyl)piperazineHCID 2248208932.1%

Reaction Steps

A mixture of 3.03 g of 2-chloronitrobenzene, 4.52 g of 1-(2-aminoethyl)-4-(2-methoxyphenyl)piperazine, and 3.18 g of anhydrous potassium carbonate in 30 mL of n-butanol was stirred for 32 h at reflux. After cooling, the mixture was poured into H2O, then extracted with EtOAc and the organic phase dried on Na2SO4. The crude obtained by evaporating the solvent was purified by flash chromatography (EtOAc-petrolium ether 4:6) and the residue obtained after evaporation of the solvents was taken up with Et2O, stirred and filtered giving 2.2 g (31%) of the title compound. Melting point: 117-118° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06399614B1
Source datasetuspto-grants-2002_06
ORD IDord-6bd0613ea79d46e285a7430682881493
Source noteuspto-grants-2002_06