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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 747841Generated: October 30, 2026

Benzyl 4-benzyl-3-oxopiperazine-1-carboxylate → 1-Benzylpiperazin-2-one

https://huagongshe.com/reaction/747841

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl 4-benzyl-3-oxopiperazine-1-carboxylateHCID 59750509—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product1-Benzylpiperazin-2-oneHCID 1514303—

Reaction Steps

A mixture of benzyl 4-benzyl-3-oxopiperazine-1-carboxylate (4.7 g, 14.5 mmol) and 10% Pd/C (0.47 g) in ethanol (150 mL) was stirred under an atmosphere of hydrogen (1 atm) at room temperature overnight. The product mixture was filtered through a pad of Celite, and concentrated under vacuum to provide 1-benzylpiperazin-2-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07399763B2
Source datasetuspto-grants-2008_07
ORD IDord-4a1ffa1f52fa4eb2bbb730eae986d1e3
Source noteuspto-grants-2008_07