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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 481635Generated: October 30, 2026

Oxalic Acid → HCID 86750004, compound

https://huagongshe.com/reaction/481635

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalic AcidHCID 971—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 11658745HCID 11658745—
Reactant4-(Naphthalen-2-yl)piperidineHCID 22029264—
SolventAcetonitrileHCID 6342—
SolventEthyl AcetateHCID 8857—
ProductHCID 86750004HCID 86750004—

Reaction Steps

A solution of 1-chloro-5-(4-indolyloxy)pentane, 4-(2-naphthyl)piperidine and 3 equivalents of potassium carbonate in acetonitrile was heated at reflux for 12 h. The mixture was cooled, diluted with ethyl acetate, and the organic layer was separated and washed with brine. The crude residue was purified by silica gel chromatography (dichloromethane/5% methanol in dichloromethane gradient eluent). The resulting free base was dissolved in ethyl acetate and precipitated with one equivalent of oxalic acid in ethyl acetate, to give the title compound in 47% overall yield as a white solid. mp. 178°-180° C. FDMS m/e=412 (M+ of free base).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05789402
Source datasetuspto-grants-1998_08
ORD IDord-5307caeaa30e47dd96d7888a18148841
Source noteuspto-grants-1998_08