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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2306633Generated: November 1, 2026

Hydrochloric Acid → HCID 69873817, compound

https://huagongshe.com/reaction/2306633

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 9803240HCID 9803240—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 69873817HCID 69873817100%

Reaction Steps

A solution of (R)-[1-(phenylmethyl)-2-[4-(2-methoxyphenyl)-1-piperazinyl]-2-oxo-ethyl]-carbamic acid tert-butyl ester (16.37 g, 37.3 mmol) in a mixture of dioxane (150 mL)/4N aqueous HCl (150 mL) was stirred at room temperature for 6 hours. The reaction mixture was then concentrated under reduced pressure and the aqueous mixture was extracted with diethyl ether. The combined organic extracts were dried over anhydrous sodium sulfate and concentrated under reduced pressure to yield the desired (R)-[1-(phenylmethyl)-2-[4-(2-methoxyphenyl)-1-piperazinyl]-2-oxoethyl]amine hydrochloride (14.0 g, 100% yield) as an off-white solid, which was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06828324B2
Source datasetuspto-grants-2004_12
ORD IDord-f2727fefe76b42d5bc45f37f55feb636
Source noteuspto-grants-2004_12