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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 914805Generated: October 27, 2026

Water → 2-(1-Benzylpiperidin-4-yl)-1-(2-fluorophenyl)ethanol

https://huagongshe.com/reaction/914805

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1-Bromo-2-fluorobenzeneHCID 61259—
Reactant4-Piperidineacetaldehyde, 1-(phenylmethyl)-HCID 10013602—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
Product2-(1-Benzylpiperidin-4-yl)-1-(2-fluorophenyl)ethanolHCID 2224787860%

Reaction Conditions

Temperature-78 °C

Reaction Steps

After dissolving 1.64 ml of 1-bromo-2-fluorobenzene in 30 ml of tetrahydrofuran, the solution was cooled to −78° C. Next, 5.31 ml of n-butyllithium (2.6 M, n-hexane solution) was added dropwise while stirring, and after 1 hour, a solution of 2.50 g of 1-benzyl-4-piperidineacetaldehyde [CAS No. 120014-32-6] in tetrahydrofuran (10 ml) was added and stirring was continued for 1 hour. After adding water to the reaction solution, the temperature was raised to room temperature and extraction was performed with ethyl acetate. The organic layer was washed with water and saturated brine in that order and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. The residue was purified by NH silica gel column chromatography (solvent: n-hexane/ethyl acetate) to obtain the title compound (2.15 g, 60% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07265108B2
Source datasetuspto-grants-2007_09
ORD IDord-cbdc97e00d134b2ab04b8623cfea5439
Source noteuspto-grants-2007_09