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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2186170Generated: October 30, 2026

Hydrochloric Acid → HCID 22000287, compound

https://huagongshe.com/reaction/2186170

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 23447583HCID 23447583—
SolventAcetoneHCID 180—
ProductHCID 22000287HCID 2200028795.3%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of 8-(6-chloropyrimidine-4-yl)-1,4-dioxa-8-azaspiro[4,5]decane (12.79 g) in acetone (50 ml) was added 4N hydrochloric acid (50 ml), and the mixture was stirred at 50° C. for 1 hour. Under reduced pressure, acetone was removed, and the residue was neutralized with 2N sodium hydroxide solution and was extracted with ethyl acetate. The extract was washed with saturated brine, dried and concentrated, and the residue was crystallized from diethylether to give colorless crystals of 1-(6-chloropyrimidine-4-yl)piperidin-4-one (10.09 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06403595B1
Source datasetuspto-grants-2002_06
ORD IDord-6aa4447afbff4ff68e3e4c06dd54151a
Source noteuspto-grants-2002_06