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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1791346Generated: November 3, 2026

Bromide ion → HCID 21942497, compound

https://huagongshe.com/reaction/1791346

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromide ionHCID 259—
ReactantDimethylformamideHCID 6228—
ReactantHCID 21942530HCID 21942530—
CatalystZinc cyanide (Zn(CN)2)HCID 11186—
CatalystHCID 178418397HCID 178418397—
ProductHCID 21942497HCID 21942497—

Reaction Conditions

Temperature80 °C

Reaction Steps

A solution of 3-fluoro-5-bromo-(1H-imidazol-1-yl)-benzene in DMF (36 mL) was treated with zinc cyanide and tetrakis(triphenylphosphine)palladium(0). The reaction mixture was heated under an argon atmosphere for 18 h at 80° C. when GC-MS indicated complete disappearance of starting bromide and presence of product molecular ion (M+ 187). The reaction mixture was partitioned between ethyl acetate and water, filtered to remove insoluble material, and the layers obtained in the filtrate were separated. The organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo. 3-Fluoro-5-cyano-(1H-imidazol-1-yl)-benzene was obtained as a colourless solid and used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07074809B2
Source datasetuspto-grants-2006_07
ORD IDord-5b79f67932a94e14accfc8c088e94cde
Source noteuspto-grants-2006_07