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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 1888178Erstellt: 25. Oktober 2026

Chloroacetic Acid → 1(2H)-Pyrazineacetic acid, 2-oxo-

https://huagongshe.com/reaction/1888178

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktChloroacetic AcidHCID 300—
EduktHydrochloric AcidHCID 313—
EduktSodium HydroxideHCID 14798—
Edukt1,2-Dihydropyrazin-2-oneHCID 72758—
Produkt1(2H)-Pyrazineacetic acid, 2-oxo-HCID 21714098—

Reaktionsbedingungen

Temperatur100 °C

Reaktionsschritte

To Pyrazin-2(1H)-one (0.333 g, 3.47 mmol) was added 5 N sodium hydroxide solution (2.1 ml) followed by chloroacetic acid (0.524 g, 5.54 mmol). The reaction mixture was heated at 100° C. for 2 h. After cooling to ambient temperature, 2 N hydrochloric acid (3.5 ml) was added and the reaction mixture was directly purified by reverse phase HPLC (TMC Pro-Pac C18; 0-40% 0.1% trifluoroacetic acid in acetonitrile/0.1% trifluoroacetic acid in water gradient). The pure fractions were lyophilized overnight to yield the title compound as a yellow solid. LC/MS 155.2 (M+1)+.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08501786B2
Quelldatensatzuspto-grants-2013_08
ORD IDord-3638307d96834b78aa45ca088bb644e8
Quellennotizuspto-grants-2013_08