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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1900472Generated: October 29, 2026

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

https://huagongshe.com/reaction/1900472

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 numberUS05574032
Source datasetuspto-grants-1996_11
ORD IDord-4241a41f1caa4bbbbe49ac98789fd58a
Source noteuspto-grants-1996_11