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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 977382Generated: October 30, 2026

Oxalic Acid → HCID 131719716, compound

https://huagongshe.com/reaction/977382

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalic AcidHCID 971—
Reactant4-(3-chloropropoxy)-1H-indoleHCID 11694169—
ReactantHCID 21268253HCID 21268253—
SolventEthyl AcetateHCID 8857—
ProductHCID 131719716HCID 131719716—

Reaction Steps

The title compound was prepared in similar fashion from 1-chloro-3-(1H-indole-4-oxy)propane and 1,5-dihydrospiro[4H-2-benzopyran-4,4'-piperidine]. The resulting free base was dissolved in ethyl acetate, and precipitated with one equivalent of oxalic acid in ethyl acetate in 69% overall yield as a foam. FDMS m/e=376 (M+ of free base).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05614523
Source datasetuspto-grants-1997_03
ORD IDord-46de28527ccd4b608ed2a211ff7c5c02
Source noteuspto-grants-1997_03