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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1593383Generated: October 30, 2026

Ammonia → 4-Fluoro-2-methylbenzonitrile

https://huagongshe.com/reaction/1593383

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantDimethylformamideHCID 6228—
ReactantAmmonium ChlorideHCID 25517—
Reactant2-Bromo-5-fluorotolueneHCID 96743—
CatalystZinc cyanide (Zn(CN)2)HCID 11186—
CatalystFerrocene-1,1'-bis-(diphenylphosphine)HCID 635956—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventWaterHCID 962—
Product4-Fluoro-2-methylbenzonitrileHCID 3826055—

Reaction Conditions

Temperature140 °C

Reaction Steps

Into 20 ml of DMF was dissolved 10 g of 1-bromo-4-fluoro-2-methylbenzene, and then 0.2 ml of water was added. Then, 3.72 g of zinc cyanide, 484 mg of 1,1′-bis(diphenylphosphino)ferrocene, and 484 mg of tris(dibenzylideneacetone)dipalladium were added thereto under an argon stream, followed by 2 hours of stirring at 140° C. The reaction solution was ice-cooled, ammonium chloride, aqueous ammonia, and water were added thereto and the resulting solid was collected by filtration. Then, the solid was washed with methanol and the washing liquid was concentrated to obtain 5.7 g of the title compound as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07297698B2
Source datasetuspto-grants-2007_11
ORD IDord-52c469bddda74fd191a6b38315ab9ac9
Source noteuspto-grants-2007_11