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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 350849Generated: October 30, 2026

1-Bromo-4-fluorobenzene → HCID 21090461, compound

https://huagongshe.com/reaction/350849

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Bromo-4-fluorobenzeneHCID 9993—
ReactantTris(1,1-dimethylethyl)phosphineHCID 83681—
ReactantSodium BicarbonateHCID 516892—
Reactant4-(N-Boc-amino)piperidineHCID 723833—
ReactantPotassium tert-butoxideHCID 23665647—
Catalystpalladium(II) acetateHCID 167845—
SolventP-XyleneHCID 7809—
ProductHCID 21090461HCID 2109046167%

Reaction Conditions

Temperature120 °C

Reaction Steps

To a p-xylene (25 mL) solution containing 4-fluorobromobenzene (275 μL, 2.5 mmol, 1.0 eq), 4-N—BOC-aminopiperidine (1.0 g, 4.99 mmol, 2.0 eq), and potassium t-butoxide (393 mg, 3.5 mmol, 1.4 eq) was added palladium (II) acetate (6 mg, 1 mol %) and tri-t-butylphosphine (20 mg, 4 mol %). The resulting mixture was then heated to 120° C. for 4 h at which time it was poured into a sat. NaHCO3 solution and extracted (2×) with EtOAc. The combined extracts were dried over MgSO4 and concentrated in vacuo. The resulting oil was purified via column chromatography using 1:1 hexanes/EtOAc as the mobile phase. Isolated 485 mg (1.65 mmol, 67% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07183290B2
Source datasetuspto-grants-2007_02
ORD IDord-b71d7d75db4548bcade8dfb36e1afaef
Source noteuspto-grants-2007_02