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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 905665Generated: October 29, 2026

Potassium Carbonate → HCID 23071570, compound

https://huagongshe.com/reaction/905665

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantEthyl 4-bromobutyrateHCID 76300—
Reactant1-(4-Nitrophenyl)piperazineHCID 80447—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 23071570HCID 23071570—

Reaction Steps

1-(4-Nitrophenyl)piperazine and ethyl 4-bromobutanoate were allowed to undergo the reaction under heating in 1-methyl-2-pyrrolidone in the presence of potassium carbonate. The resulting compound was subjected to catalytic hydrogenation in the same manner as shown in Reference Example 3 to obtain ethyl 4-[4-(4-aminophenyl)-piperazin-1-yl]butanoate. F: 264.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08012959B2
Source datasetuspto-grants-2011_09
ORD IDord-ca54b7f897414b9f8517b35d53652f42
Source noteuspto-grants-2011_09