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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 351550Generated: October 30, 2026

Hydrochloric Acid → 4-[4-(4-Hexyloxyphenyl)piperazin-1-yl]benzoic acid hydrochloride

https://huagongshe.com/reaction/351550

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthanolHCID 702—
ReactantSodium HydroxideHCID 14798—
ReactantEthyl 4-[4-(4-hexyloxyphenyl)piperazin-1-yl]benzoateHCID 22713156—
SolventTetrahydrofuranHCID 8028—
Product4-[4-(4-Hexyloxyphenyl)piperazin-1-yl]benzoic acid hydrochlorideHCID 69818033—

Reaction Steps

To a solution of ethyl 4-[4-(4-hexyloxyphenyl)piperazin-1-yl]benzoate (2.19 g) in the mixture of ethanol (22 ml) and tetrahydrofuran (22 ml) was added 2N NaOH aq. and refluxed for 5 hours. The reaction mixture was adjusted to pH 1-1.5 with 1N HCl and the resulting precipitate was collected by filtration to give 4-[4-(4-hexyloxyphenyl)piperazin-1-yl]benzoic acid hydrochloride (1.99 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06743776B2
Source datasetuspto-grants-2004_06
ORD IDord-3e86966a8f3f47a7befd4b1e441bb695
Source noteuspto-grants-2004_06