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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 29262Erstellt: 24. Oktober 2026

Ammonia → 6-Bromopyridine-2-carboxamide

https://huagongshe.com/de/reaction/29262

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktAmmoniaHCID 222—
Edukt6-Bromopyridine-2-carboxylic acidHCID 593919—
LösungsmittelThionyl ChlorideHCID 24386—
Lösungsmittel1,4-DioxaneHCID 31275—
Produkt6-Bromopyridine-2-carboxamideHCID 2196140845%

Reaktionsbedingungen

Temperatur70 °C

Reaktionsschritte

6-Bromopicolinic acid (1000 mg, 4.95 mmol) was suspended in thionyl chloride (15 mL) and heated at 70° C. for 5 h. The reaction was cooled to room temperature and the volatiles were condensed under reduced pressure. A solution of ammonia (2M in dioxane (15 mL) was added to the residue and then the solvents were removed under reduced pressure. The crude residue was purified by MPLC with a gradient of 0 to 20% MeOH/dichloromethane to give 6-Bromo-pyridine-2-carboxylic acid amide as a white powder (555 mg, 45%). MS ES (MH+=201.0/203.0).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS07420066B2
Quelldatensatzuspto-grants-2008_09
ORD IDord-c44d8a796e344fa9ab518435508d9ef8
Quellennotizuspto-grants-2008_09