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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1816320Generated: October 31, 2026

Water → HCID 22492869, compound

https://huagongshe.com/reaction/1816320

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
Reactant4-FluorobenzonitrileHCID 14517—
ReactantHCID 22492917HCID 22492917—
SolventDimethylformamideHCID 6228—
ProductHCID 22492869HCID 2249286931.6%

Reaction Steps

A solution of 4-fluorobenzonitrile (0.38 g), 4-(5-methoxypentyloxy)piperidine (0.62 g) and potassium carbonate (0.87 g) in DMF (8 ml) was stirred at 90-95° C. for 6 hours. The reaction mixture was poured into water (50 ml) and extracted twice with a mixture of ethyl acetate and n-hexane (50 ml: 20 ml). The extracts were combined, washed with saturated aqueous sodium chloride, dried over magnesium sulfate and evaporated in vacuo. The resulting residue was chromatographed on silica gel (100 ml) eluting with a mixture of n-hexane and ethyl acetate (5:1 v/v-2:1 v/v). The fractions containing the desired compound were collected and evaporated under reduced pressure to give 4-(5-methoxypentyloxy)-N-(4-cyanophenyl)piperidine (294 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06884774B2
Source datasetuspto-grants-2005_04
ORD IDord-cd24dc3be074498cbff7ef09c7a9b2b3
Source noteuspto-grants-2005_04