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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2097326Generated: October 30, 2026

3-Ethoxy-4-(pyridin-4-ylamino)cyclobut-3-ene-1,2-dione → 3-{2-[4-(4-Chlorophenoxy)-phenyl]-ethylamino}-4-(pyridin-4-yl-amino)-cyclobut-3-ene-1,2-dione

https://huagongshe.com/reaction/2097326

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Ethoxy-4-(pyridin-4-ylamino)cyclobut-3-ene-1,2-dioneHCID 10680319—
Reactant4-(4-chlorophenoxy)BenzeneethanamineHCID 23132450—
SolventEthanolHCID 702—
Product3-{2-[4-(4-Chlorophenoxy)-phenyl]-ethylamino}-4-(pyridin-4-yl-amino)-cyclobut-3-ene-1,2-dioneHCID 11589823—

Reaction Conditions

Temperature150 °C

Reaction Steps

3-Ethoxy-4-(pyridine-4-yl-amino)-3-cyclobutene-1,2-dione (70 mg, 0.32 mmol) and 2-[4-(4-chlorophenoxy)-phenyl]-ethylamine (105 mg, 0.45 mmol) in EtOH (1.5 mL) were stirred and heated to 150° C. in a sealed vessel in a microwave synthesizer for 30 s. After cooling to r.t. the precipitate was filtered off, washed with EtOH (3×3 mL) and dried in vacuo.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08450348B2
Source datasetuspto-grants-2013_05
ORD IDord-ce1559d358574daa846a09911908c489
Source noteuspto-grants-2013_05