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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 565508Generated: October 29, 2026

Oxalic Acid → HCID 86750004, compound

https://huagongshe.com/reaction/565508

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 numberUS06172073B2
Source datasetuspto-grants-2001_01
ORD IDord-f58fef83b285466396730ab6c5f04f66
Source noteuspto-grants-2001_01