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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1867235Generated: November 1, 2026

O-Phenylenediamine → HCID 15710569, compound

https://huagongshe.com/reaction/1867235

Reaction equation

Participants

RoleNameHCIDCharge
ReactantO-PhenylenediamineHCID 7243—
Reactant2,4-PyrrolidinedioneHCID 551491—
SolventMethanolHCID 887—
ProductHCID 15710569HCID 15710569—

Reaction Steps

A solution of pyrrolidin-2,4-dione (6.93 g, 70 mmol) produced in step 1 and 1,2-phenylenediamine (7.88 g, 70 mmol) in methanol was stirred at 60° C. for 1 hour. The reaction solution was cooled, and the crystals thus formed were taken by the filtration to synthesize 4-((2-aminophenyl)amino)-3-pyrrolin-2-one (yield: 11.6 g, 87%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07632830B2
Source datasetuspto-grants-2009_12
ORD IDord-1fe49092966345a989bbd4cb9e47e671
Source noteuspto-grants-2009_12