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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2388018Generated: October 30, 2026

Cesium carbonate → HCID 58476654, compound

https://huagongshe.com/reaction/2388018

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
ReactantN,N-DimethylpropargylamineHCID 81643—
Reactant2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 11155794—
Reactant5-Bromo-2-fluoropyridin-3-amineHCID 17750144—
CatalystBis(acetonitrile)dichloropalladiumHCID 6093782—
SolventDimethylformamideHCID 6228—
ProductHCID 58476654HCID 5847665445.4%

Reaction Conditions

Temperature50 °C

Reaction Steps

A mixture of 5-bromo-2-fluoropyridin-3-amine (1.00 g, 5.24 mmol), N,N-dimethylprop-2-yn-1-amine (0.68 mL, 6.28 mmol), and cesium carbonate (3.41 g, 10.5 mmol) in DMF (25 mL) was degassed with argon for 15 min. To this slurry were added bis(acetonitrile)palladium(II) chloride (0.068 g, 0.26 mmol) and Xphos (0.324 g, 0.68 mmol). The suspension was allowed to stir at 50° C. for 4 h under an atmosphere of nitrogen and was then concentrated. The residue was purified by column chromatography to give 5-[3-(dimethylamino)prop-1-yn-1-yl]-2-fluoropyridin-3-amine (0.46 g, 45%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08268992B2
Source datasetuspto-grants-2012_09
ORD IDord-ae2b7be9098e42e2aad78e5bb29b8995
Source noteuspto-grants-2012_09