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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1614640Generated: October 31, 2026

Hydrochloric Acid → HCID 19771932, compound

https://huagongshe.com/reaction/1614640

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-BromomethylnaphthaleneHCID 70320—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 19772069HCID 19772069—
SolventEthanolHCID 702—
ProductHCID 19771932HCID 1977193276.5%

Reaction Steps

A mixture of 3.10 g (7.5 mmol) of 4-[[(3,4-difluorophenyl)amino](4-fluorophenyl)methyl]piperidine hydrochloride hydrate, 1.70 g (7.7 mmol) of 2-bromomethylnaphthalene and 5.1 g (60.7 mmol) of sodium bicarbonate in 200 mL of absolute ethanol was stirred at room temperature for 20 h. The solvent was removed in vacuo, and the residue was partitioned between methylene chloride and dilute NaOH. The organic phase was dried (Na2SO4), and the solvent was removed in vacuo. The residue was subjected to flash chromatography (silica gel, elution with 1-4% MeOH in CH2Cl2) to give an oil. This was converted to the HCl salt, and the salt was recrystallized from a mixture of methanol and diethylether to give 1.53 g (38.3%) of the title compound as a crystalline solid, mp 187°-190° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05198449
Source datasetuspto-grants-1993_03
ORD IDord-3584ebb6d0a54a2dbd0de943bebd1bbc
Source noteuspto-grants-1993_03