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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 64305Generated: October 30, 2026

Hydrochloric Acid → Ethyl 1-benzyl-4-hydrazinylpiperidine-4-carboxylate hydrochloride

https://huagongshe.com/reaction/64305

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl 1-benzyl-4-(N,N'-di-tert-butyloxycarbonylhydrazino)piperidin-4-ylcarboxylateHCID 15663644—
SolventMethanolHCID 887—
ProductEthyl 1-benzyl-4-hydrazinylpiperidine-4-carboxylate hydrochlorideHCID 11766815488.9%

Reaction Steps

A mixture of di-tert-butyl 1-(1-benzyl-4-(ethoxycarbonyl)piperidin-4-yl)hydrazine-1,2-dicarboxylate (1.0 g, 2.09 mmol) and con. HCl (1.0 mL) in MeOH (10 mL) was heated to reflux for 2 hr. The mixture was then concentrated to give the crude product (650 mg, 88.9%) as a yellow solid. MS (ESI, m/e) [M+1]+ 278.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09447106B2
Source datasetuspto-grants-2016_09
ORD IDord-30db4601f7734b269e36785a41fea959
Source noteuspto-grants-2016_09