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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 419568Generated: October 25, 2026

Water → 1-[2-Ethyl-5-(methyloxy)-4-nitrophenyl]-4-[2-(methylsulfonyl)ethyl)piperazine

https://huagongshe.com/reaction/419568

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
Reactant1-Ethyl-2-fluoro-4-methoxy-5-nitrobenzeneHCID 59452847—
Reactant1-[2-(Methylsulfonyl)ethyl]piperazine hydrochlorideHCID 66649667—
SolventDimethyl SulfoxideHCID 679—
Product1-[2-Ethyl-5-(methyloxy)-4-nitrophenyl]-4-[2-(methylsulfonyl)ethyl)piperazineHCID 59452817—

Reaction Conditions

Temperature65 °C

Reaction Steps

1-Ethyl-2-fluoro-4-(methyloxy)-5-nitrobenzene (1.0 g, 5.0 mmol) was dissolved in DMSO (8 mL). Potassium carbonate (2.1 g, 15 mmol) and 1-[2-(methylsulfonyl)ethyl]piperazine hydrochloride (Example 148, step B) (1.1 g, 5.0 mmol) were added and the reaction mixture was heated to 65° C. and allowed to stir over the weekend. The mixture was then poured into water and extracted with EtOAc (2×). The combined organics were dried with MgSO4, filtered, and concentrated in vacuo to give the title compound without further purification (1.7 g, 4.7 mmol, 93%). MS (M+H, ES+) 372.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08093239B2
Source datasetuspto-grants-2012_01
ORD IDord-38c95e4e1b9f4e528175183606fb1efa
Source noteuspto-grants-2012_01