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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1586092Generated: November 1, 2026

Potassium Carbonate → HCID 178510076, compound

https://huagongshe.com/reaction/1586092

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant4-FluorobenzonitrileHCID 14517—
ReactantHCID 178509527HCID 178509527—
SolventDimethylformamideHCID 6228—
ProductHCID 178510076HCID 17851007621%

Reaction Steps

A mixture of 1H-Benzimidazole-5-nitrile, 2-(4-hydroxyphenyl)- (2.6 g, 0.011 mol), potassium carbonate (4.0 g, 0.029 mol), and 4-fluorobenzonitrile (1.2 g, 0.0099 mol) in DMF (100 mL) was refluxed for 18 h. The mixture was then filtered (to remove the potassium carbonate) into an ice/water bath. The precipitate was collected and recrystallized from ethyl acetate to afford 0.7 g (21%) of 2-[4-(4-cyanophenoxy)phenyl]-1H-benzimidazole-5-carbonitrile.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05942532
Source datasetuspto-grants-1999_08
ORD IDord-bb81fcc6027549d89b8939234440567b
Source noteuspto-grants-1999_08