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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1658659Generated: November 1, 2026

Hydrochloric Acid → HCID 68131661, compound

https://huagongshe.com/reaction/1658659

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantFormaldehydeHCID 712—
Reactant4'-FluoroacetophenoneHCID 9828—
Reactant4-Piperidinemethanol, alpha,alpha-diphenyl-, hydrochloride (1:1)HCID 15722—
CatalystIsopropanolHCID 3776—
ProductHCID 68131661HCID 68131661—

Reaction Steps

A mixture of 30.4 g (0.1 mole) of α,α -diphenyl-4-piperidinemethanol hydrochloride, 9 g (0.3 mole) of paraformaldehyde and 13.8 g (0.1 mole) of 4' -fluoroacetophenone in 100 ml of isopropyl alcohol containing 2 drops of concentrated HCl was refluxed for 24 hours. The mixture was filtered and the filtrate concentrated to about 100 ml and cooled. The resulting precipitate was filtered off and recrystallized from ethanol and isopropyl alcohol to give the desired product, M.P. 250° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03965257
Source datasetuspto-grants-1976_06
ORD IDord-00d0a11516944b14ba59952125e8865f
Source noteuspto-grants-1976_06