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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1977911Generated: November 1, 2026

Hydrochloric Acid → HCID 21995458, compound

https://huagongshe.com/reaction/1977911

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthanolHCID 702—
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantHCID 54468976HCID 54468976—
SolventWaterHCID 962—
ProductHCID 21995458HCID 21995458—

Reaction Steps

To a 100 mL round-bottomed flask equipped with condenser and N2 inlet were added 100 mg (0.302 mmol) 4-(4-(2-(2,5-dimethylpyrrolyl)pyrid-6-yl)phenyl)piperidine, 10 mL ethanol, 1 mL water, and 417 mg (6.04 mmol) hydroxylamine hydrochloride. The reaction was refluxed 20 hours cooled, and poured into dilute aqueous hydrochloric acid, then washed with ethyl acetate. The aqueous layer was adjusted to pH 10 with 6 N sodium hydroxide solution and extracted twice with ethyl acetate. The combined organic layer was washed with brine, dried over sodium sulfate, and evaporated. The resulting oil (77 mg, 100%) was converted to the hydrochloride salt using HCl in, ether to afford a tan solid, 32 mg (32%), mp dec. above 150° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06235750B1
Source datasetuspto-grants-2001_05
ORD IDord-8017869953c4410fb31dc80ed22461ff
Source noteuspto-grants-2001_05