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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 906045Generated: October 30, 2026

Methanol → tert-Butyl 4-(4-aminophenyl)piperazine-1-carboxylate

https://huagongshe.com/reaction/906045

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
Reactant1-Boc-4-(4-Nitrophenyl)piperazineHCID 3380696—
CatalystPalladiumHCID 23938—
SolventEthyl AcetateHCID 8857—
Producttert-Butyl 4-(4-aminophenyl)piperazine-1-carboxylateHCID 11011301—

Reaction Steps

Pd on C 10% (0.3% p/p) was added to a solution of tert-butyl 4-(4-nitrophenyl)piperazine-1-carboxylate (1 eq) in a mixture (1:1 ratio) MeOH:EtOAc (0.03 M). The atmosphere in the reaction vessel was charged with H2 (1 atm.) and the reaction stirred vigorously for 2 h. At this time, the reaction mixture was filtered through a pad of celite and concentrated in vacuo to afford the title compound (quant); MS (ES+) m/z 278 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08012982B2
Source datasetuspto-grants-2011_09
ORD IDord-f3d4893949ca48a5a2e0b5c5e9e4e01a
Source noteuspto-grants-2011_09