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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1666351Generated: October 26, 2026

Hydrochloric Acid → 4-[3-(4-Fluoro-phenoxy)-benzylidene]-piperidine hydrochloride

https://huagongshe.com/reaction/1666351

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
Reactant4-[3-(4-Fluoro-phenoxy)-benzylidene]-piperidine-1-carboxylic acid tert-butyl esterHCID 66876248—
SolventDichloromethaneHCID 6344—
Product4-[3-(4-Fluoro-phenoxy)-benzylidene]-piperidine hydrochlorideHCID 66876097—

Reaction Steps

4-[3-(4-Fluoro-phenoxy)-benzylidene]-piperidine-1-carboxylic acid tert-butyl ester (1.05 g, 2.74 mmol) (Step 2) was dissolved in CH2Cl2 (20 mL) and treated with HCl in diethyl ether (8.2 mL, 16.4 mmol). After 16 hours the solution was concentrated and the residue suspended in diethyl ether. The resulting solid was filtered to provide the title compound as the hydrochloride salt (774 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08044052B2
Source datasetuspto-grants-2011_10
ORD IDord-ee27892af05f4a6eaafda70f688f58ef
Source noteuspto-grants-2011_10