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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 353787Erstellt: 24. Oktober 2026

O-Phenylenediamine → ethyl 2-(1H-1,3-benzodiazol-2-yl)acetate

https://huagongshe.com/de/reaction/353787

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktO-PhenylenediamineHCID 7243—
EduktEthyl 3-ethoxy-3-iminopropionate hydrochlorideHCID 75345—
LösungsmittelEthanolHCID 702—
Produktethyl 2-(1H-1,3-benzodiazol-2-yl)acetateHCID 308071—

Reaktionsschritte

A solution of 1,2-phenylenediamine (1.0 eq) and ethyl 3-ethoxy-3-iminopropanoate hydrochloride (1.3 eq) in EtOH was stirred at 90° C. overnight. The reaction was cooled to room temperature and the solvent removed in vacuo. Water and CH2Cl2 were added to the residue. The organic layer was separated, dried over Na2SO4 and the solvent removed. The solid recovered was used without purification. LC/MS m/z 205.2 (MH+), Rt 1.44 minutes.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS06756383B2
Quelldatensatzuspto-grants-2004_06
ORD IDord-7ebd6310aecc423cba1434ab8eef2675
Quellennotizuspto-grants-2004_06