Zurück
HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 736224Erstellt: 25. Oktober 2026

tert-Butyl piperazine-1-carboxylate → 4-(4-Cyano-2,3-difluoro-phenyl)-piperazine-1-carboxylic acid tert-butyl ester

https://huagongshe.com/reaction/736224

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
Edukttert-Butyl piperazine-1-carboxylateHCID 143452—
Edukt2,3,4-TrifluorobenzonitrileHCID 518936—
LösungsmittelDimethylacetamideHCID 31374—
Produkt4-(4-Cyano-2,3-difluoro-phenyl)-piperazine-1-carboxylic acid tert-butyl esterHCID 6884074575,4%

Reaktionsbedingungen

Temperatur80 °C

Reaktionsschritte

To a solution of N-Boc-piperazine (0.65 g) in DMA (20 mL) was slowly added a solution of 2,3,4-trifluorobenzonitrile (0.49 g) in DMA (10 mL). The reaction mixture was stirred for 2 hours at 80° C. After such time the solvent was removed in vacuo and purified by column chromatography (SiO2) to yield the title compound as white solid (0.76 g).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS07595314B2
Quelldatensatzuspto-grants-2009_09
ORD IDord-12d397d2113f40bb841b7e205423aeed
Quellennotizuspto-grants-2009_09