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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1530650Generated: October 25, 2026

Hydrogen chloride-ethyl acetate → 4-Hydrazinyl-1-methylpiperidine hydrochloride

https://huagongshe.com/reaction/1530650

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen chloride-ethyl acetateHCID 21866389—
ReactantTert-butyl 2-(1-methylpiperidin-4-yl)hydrazinecarboxylateHCID 68313226—
Product4-Hydrazinyl-1-methylpiperidine hydrochlorideHCID 68312881100%

Reaction Steps

A mixture of tert-butyl 2-(1-methylpiperidin-4-yl)hydrazinecarboxylate (350 mg, 1.53 mmol) in sat. HCl/EtOAc solution (20 mL) was stirred at room temperature overnight. The solvent was removed under reduce pressure to afford 4-hydrazinyl-1-methylpiperidine hydrochloride (253 mg, 100% yield), which was used in the next step without further purification. LCMS (ESI) m/z: 130.3 [M+H+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09090628B2
Source datasetuspto-grants-2015_07
ORD IDord-8b4573ab3b3642ba945052687ae2dd39
Source noteuspto-grants-2015_07