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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1420442Generated: November 2, 2026

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

https://huagongshe.com/reaction/1420442

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 numberUS05889035
Source datasetuspto-grants-1999_03
ORD IDord-f1c9a3fd712549fb9c9312e9c23aab00
Source noteuspto-grants-1999_03