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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 968384Generated: October 25, 2026

Acetonitrile → (4E)-5-(3-Pyridyl)-4-penten-2-ol

https://huagongshe.com/reaction/968384

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetonitrileHCID 6342—
ReactantTriethylamineHCID 8471—
Reactant4-Penten-2-OLHCID 12247—
Reactant3-BromopyridineHCID 12286—
CatalystTri-o-tolylphosphineHCID 80271—
Catalystpalladium(II) acetateHCID 167845—
SolventWaterHCID 962—
Product(4E)-5-(3-Pyridyl)-4-penten-2-olHCID 1204297496.8%

Reaction Conditions

Temperature140 °C

Reaction Steps

A mixture of 3-bromopyridine (7.50 g, 47.46 mmol), 4-penten-2-ol (4.90 g, 56.96 mmol), palladium(II) acetate (106 mg, 0.47 mmol), tri-o-tolylphosphine (575 mg, 1.89 mmol), triethylamine (28.4 mL, 204.11 mmol) and acetonitrile (25 mL) was heated in a sealed glass tube at 140° C. for 14 h. The reaction mixture was cooled to ambient temperature, diluted with water, and extracted with chloroform (3×200 mL). The combined chloroform extracts were dried over sodium sulfate, filtered, and concentrated by rotary evaporation to give a pale-yellow oil (7.50 g, 81.0%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06958399B2
Source datasetuspto-grants-2005_10
ORD IDord-adcbf96e9b494bcda229a33c682e026d
Source noteuspto-grants-2005_10