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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1064365Generated: October 30, 2026

Water → HCID 22273086, compound

https://huagongshe.com/reaction/1064365

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1-(2-Hydroxyethyl)piperazineHCID 7677—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 17897329HCID 17897329—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 22273086HCID 2227308667.3%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of 6.79 g of 4-chloro-2,3-difluoro-6-nitroaniline (which was synthesized following WO9856761 or WO9835977) and 4.70 g of 1-piperazine ethanol in 30 ml of dimethylsulfoxide, 9.23 g of potassium carbonate was added, followed by an hour's stirring at 50° 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, the solvent was distilled off and 6.98 g of the title compound in crude form was obtained as a yellow oily substance.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06969712B2
Source datasetuspto-grants-2005_11
ORD IDord-dd8929cfcc57458f93f3ea05beea15bc
Source noteuspto-grants-2005_11