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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1064363Generated: November 2, 2026

Water → HCID 22273236, compound

https://huagongshe.com/reaction/1064363

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1-(2-Hydroxyethyl)piperazineHCID 7677—
ReactantSodium CarbonateHCID 10340—
Reactant4,5-Dichloro-2-nitroanilineHCID 81149—
SolventCyclohexanolHCID 7966—
ProductHCID 22273236HCID 2227323688.3%

Reaction Conditions

Temperature150 °C

Reaction Steps

To a solution of 4.14 g of 4,5-dichloro-2-nitroaniline and 2.73 g of 1-piperazine ethanol in 20 ml of cyclohexanol, 2.65 g of sodium carbonate was added, and stirred for 14 hours at 150° C. After cooling the reaction liquid to room temperature, water was added thereto, followed by extraction with chloroform. The chloroform layer was dried on anhydrous magnesium sulfate and the solvent was distilled off. The residue was separated and purified on silica gel column chromatography (chloroform/methanol=10/1) to provide 5.31 g of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06969712B2
Source datasetuspto-grants-2005_11
ORD IDord-05c8e6d0d5774895b7fc1720672a69b8
Source noteuspto-grants-2005_11