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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1743152Generated: October 26, 2026

2-Chloroaniline → HCID 9946949, compound

https://huagongshe.com/reaction/1743152

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-ChloroanilineHCID 7240—
ReactantEthyl AcetateHCID 8857—
Reactant3-ethoxy-4-(2-Hydroxy-4-nitroanilino)-3-cyclobutene-1,2-dioneHCID 22238504—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 9946949HCID 994694941.2%

Reaction Steps

A solution of 3-ethoxy-4-(2-Hydroxy-4-nitroanilino)-3-cyclobutene-1,2-dione (0.38 g, 1.37 mmol) and 2-chloroaniline (0.23 mL, 2.2 mmol) in 2 mL DMSO was heated at 110° C. for overnight. The reaction mixture was cooled to room temperature, and ethylacetate was added, and a precipitate formed. The filtrate was partitioned between ethylacetate and water. The organic layer was dried over sodium sulfate and concentrated. Recrystalized from ethylacetate and hexanes, 203 mg (41%) of 3-(2-chloroanilino)-4-(2-Hydroxy-4-nitroanilino)-3-cyclobutene-1,2-dione was obtained. LCMS(H+) 360.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07008962B2
Source datasetuspto-grants-2006_03
ORD IDord-1dc49b3fc2ba4802bc8bd61dd3fdc111
Source noteuspto-grants-2006_03