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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 334075Generated: October 29, 2026

1,1-Dimethylethyl (2S)-4-(phenylmethyl)-2-propyl-1-piperazinecarboxylate → tert-Butyl (2S)-2-propylpiperazine-1-carboxylate

https://huagongshe.com/reaction/334075

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1-Dimethylethyl (2S)-4-(phenylmethyl)-2-propyl-1-piperazinecarboxylateHCID 86688297—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Producttert-Butyl (2S)-2-propylpiperazine-1-carboxylateHCID 44593842—

Reaction Steps

A mixture of 1.50 g (4.24 mmol; purity: 90%) (S)-4-benzyl-2-propyl-piperazine-1-carboxylic acid tert-butyl ester and 150 mg palladium on carbon in 30 mL methanol was hydrogenated at RT for 6 h at 3 bar. The catalyst was removed by filtration and the solvent was evaporated in vacuo.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883789B2
Source datasetuspto-grants-2014_11
ORD IDord-c76aa192aa334dedb7a115b994299ea4
Source noteuspto-grants-2014_11