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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 611938Generated: November 1, 2026

1H-Isoindole-1,3(2H)-dione, 2-(2-bromoethyl)- → HCID 18467245, compound

https://huagongshe.com/reaction/611938

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1H-Isoindole-1,3(2H)-dione, 2-(2-bromoethyl)-HCID 11325—
ReactantSodium BicarbonateHCID 516892—
Reactant3-(Piperazin-1-YL)-1H-indazoleHCID 14823445—
SolventAcetonitrileHCID 6342—
ProductHCID 18467245HCID 18467245—

Reaction Steps

A suspension of 4-(1H-indazol-3-yl)piperazine (1.6 g, 7.9 mmol), N-(2-bromoethyl)phthalimide (2.1 g, 7.9 mmol), and sodium bicarbonate (0.7 g, 8.3 mmol) in acetonitrile (160 ml) was warmed to reflux for 24 hours. Upon cooling to room temperature, the reaction mixture was filtered through a pad of celite and the solids were washed with DCM. The combined filtrates were concentrated to give the N-[2-[4-(1H-indazol-3-yl)-1-piperazinyl]ethyl]phthalimide which was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06001834
Source datasetuspto-grants-1999_12
ORD IDord-a86c84c2f87e45d99bb2ab186966bc45
Source noteuspto-grants-1999_12