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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2394641Generated: October 31, 2026

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

https://huagongshe.com/reaction/2394641

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-3yl)-1-piperazinyl]ethyl]phthalimide which was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05811430
Source datasetuspto-grants-1998_09
ORD IDord-47fec07c7a594695a51afdbe94e7fed5
Source noteuspto-grants-1998_09