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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2236630Generated: October 25, 2026

Water → HCID 178480720, compound

https://huagongshe.com/reaction/2236630

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant4-(4-Methylpiperazin-1-yl)anilineHCID 737253—
Reactant4-methoxymethylene-6-bromo-4H-isoquinoline-1,3-dioneHCID 68692764—
SolventDimethylformamideHCID 6228—
ProductHCID 178480720HCID 17848072075.5%

Reaction Conditions

Temperature115 °C

Reaction Steps

To a suspension of crude 6-Bromo-4-methoxymethylene-4H-isoquinoline-1,3-dione (423 mg, 1.5 mmol) in N,N-dimethylformamide (3 mL) is added 4-(4-Methyl-piperazin-1-yl)-phenylamine (290 mg, 1.5 mmol). The reaction mixture is shaken at 115° C. for 1.5 hours. Upon cooling to room temperature and addition of 2 mL of water, the product precipitated out. The precipitate is then filtered off, washed with water, and dried to yield 0.5 g of crude 6-bromo-4-{[4-(4-methyl-piperazin-1-yl)-phenylamino]-methylene}-4H-isoquinoline-1,3-dione, which is used as such for the next reaction.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07713994B2
Source datasetuspto-grants-2010_05
ORD IDord-1528c0fd74204ed9af8dc01d5c4f617b
Source noteuspto-grants-2010_05