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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2065477Generated: October 30, 2026

Hydrochloric Acid → HCID 67094508, compound

https://huagongshe.com/reaction/2065477

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantIsopropyl AcetateHCID 7915—
ReactantMorpholineHCID 8083—
Reactant1-Benzyl-2-piperidoneHCID 5170076—
SolventWaterHCID 962—
ProductHCID 67094508HCID 67094508—

Reaction Conditions

Temperature95 °C

Reaction Steps

10.00 kg (52.84 mol) 1-benzylpiperidone (K) were taken and 9.21 kg (105.68 mol) morpholine (L) and 30.0 L isopropylacetate were added. Then the reaction mixture obtained was heated to reflux temperature (95° C.) using the water separator and stirred until no more water separated off. Then the mixture was hydrogenated at 4 bar and at an internal temperature of 60° C. in the presence of 0.50 kg Raney nickel catalyst. Then the solvent was completely distilled off in vacuo. Then 45.0 L ethanol were added and 10.87 kg (116.25 mol) ethanolic 10-mol hydrochloric acid were metered in. The resulting suspension was cooled to 20° C. and stirred for 30 minutes at 20° C. The product was centrifuged off and dried.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08288531B2
Source datasetuspto-grants-2012_10
ORD IDord-6063ba182b73440a82986bb9f4d38638
Source noteuspto-grants-2012_10