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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1579008Generated: November 3, 2026

Formaldehyde → HCID 21557474, compound

https://huagongshe.com/reaction/1579008

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantNaphthalimideHCID 66491—
Reactant1-(2-Pyridyl)piperazineHCID 94459—
SolventDimethylformamideHCID 6228—
ProductHCID 21557474HCID 21557474—

Reaction Steps

An equimolar mixture of 1-(2-pyridinyl)piperazine, aqueous formaldehyde, and 1,8-naphthalimide is suspended in a small amount of dimethylformamide and the mixture is heated until dissolution is complete. The solution is allowed to stand at room temperature and the resulting precipitate is filtered off and dried to yield 2-[[4-(2-pyridinyl)-1-piperazinyl]methyl]1H-benz[de]isoquinoline-1,3(2H)-dione.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03940398
Source datasetuspto-grants-1976_02
ORD IDord-5cec333486b9431e849210c9dbe634d5
Source noteuspto-grants-1976_02