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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2236921Generated: October 30, 2026

P-Phenylenediamine → HCID 178507738, compound

https://huagongshe.com/reaction/2236921

Reaction equation

Participants

RoleNameHCIDCharge
ReactantP-PhenylenediamineHCID 7814—
Reactant4-Methoxymethylene-4H-isoquinoline-1,3-dioneHCID 68692337—
SolventDimethylformamideHCID 6228—
ProductHCID 178507738HCID 17850773873.7%

Reaction Conditions

Temperature115 °C

Reaction Steps

To a suspension of 4-Methoxymethylene-4H-isoquinoline-1,3-dione (203 mg, 1.0 mmol) in N,N-dimethylformamide (2.5 mL) is added 1,4-phenylenediamine (108 mg, 1.0 mmol). The reaction mixture is shaken at 115° C. for 1.5 hours. Upon cooling to ambient temperature, product precipitated out of solution. The product is recovered by filtration, rinsing with diethyl ether, and drying to yield 205.9 mg 4-[(4-Amino-phenylamino)-methylene]-4H-isoquinoline-1,3-dione.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07713994B2
Source datasetuspto-grants-2010_05
ORD IDord-ae74c5a41a474a1b8452724abb3ca93b
Source noteuspto-grants-2010_05