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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 273089Generated: October 25, 2026

Dimethylformamide → Benzonitrile, 3-ethyl-

https://huagongshe.com/reaction/273089

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantBenzene, 1-bromo-3-ethyl-HCID 123170—
CatalystZinc cyanide (Zn(CN)2)HCID 11186—
CatalystHCID 178418397HCID 178418397—
SolventEthyl AcetateHCID 8857—
ProductBenzonitrile, 3-ethyl-HCID 96692—

Reaction Conditions

Temperature80 °C

Reaction Steps

Argon was bubbled into a solution of 1-bromo-3-ethylbenzene (2.5 g, 13.5 mmol) in DMF (37 ml) for 10 min. and then zinc cyanide (1.75 g, 14.9 mmol) and tetrakis(triphenylphosphine)palladium(0) (1.56 g, 1.35 mmol) were added. After stirring at 80° C. overnight the reaction mixture was diluted with ethyl acetate (35 ml) then filtered through celite to remove the precipitate. The filtrate was washed with water (3×), saturated brine, dried over anhydrous sodium sulfate, filtered and concentrated. The product was purified by flash column chromatography using 2% ethyl acetate in hexane affording a colorless liquid (1.42 g). GC-MS (M+): 131.18.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07456200B2
Source datasetuspto-grants-2008_11
ORD IDord-4194fcc506ec4984aef650606b2dbac9
Source noteuspto-grants-2008_11