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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1677552Generated: October 30, 2026

3-Bromoaniline → HCID 57516627, compound

https://huagongshe.com/reaction/1677552

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-BromoanilineHCID 11562—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant2,2-Dimethylsuccinic anhydrideHCID 87067—
SolventDichloromethaneHCID 6344—
ProductHCID 57516627HCID 57516627—

Reaction Conditions

Temperature50 °C

Reaction Steps

3-Bromo-phenylamine (10.0 g, 58.1 mmol) and 3,3-dimethyl-dihydro-furan-2,5-dione (8.2 g, 63.9 mmol) were suspended in 387 ml of methylene chloride and heated at 50° C. for 3 hours. Carbonyldiimidazole (11.3 g, 69.7 mmol) was added in portions and the reaction was heated at 50° C. overnight. Most of the solvent was removed on a rotary evaporator. The solid residue was triturated with 20% ethyl acetate in hexanes, filtered and dried to give 15 g (92%) of somewhat impure 1-(3-bromo-phenyl)-3,3-dimethyl-pyrrolidine-2,5-dione which was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08008298B2
Source datasetuspto-grants-2011_08
ORD IDord-57f060bf6bad401bb1dd0b76338e7986
Source noteuspto-grants-2011_08