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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1634023Generated: October 26, 2026

Aniline → 2H-Benzimidazol-2-one, 1,3-dihydro-1-phenyl-

https://huagongshe.com/reaction/1634023

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAnilineHCID 6115—
ReactantPotassium CarbonateHCID 11430—
Reactant1-Fluoro-2-nitrobenzeneHCID 73895—
SolventAcetonitrileHCID 6342—
Product2H-Benzimidazol-2-one, 1,3-dihydro-1-phenyl-HCID 84657—

Reaction Steps

2-fluoronitrobenzene was treated with aniline in the prescence of K2CO3 in CH3CN and heated to reflux for 12 h. The solution is cooled, filtered and the solvent removed. The nitro group is reduced with catalytic hydrogenation and the diamine treated with CDI to give 1-phenyl-1,3-dihydro-benzoimidazol-2-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06506738B1
Source datasetuspto-grants-2003_01
ORD IDord-6ce79da2204742599c88902fe82d6331
Source noteuspto-grants-2003_01