Reaktion #84998

Reaktionsgleichung

4-iodo-6-methoxypyridin-3-carbonitrile

pyridinium hydrobromide

→

title compound

4-Bromo-6-oxo-1,6-dihydropyridine-3-carbonitrile

Reaktionsbedingungen

Vorschrift

4.5 g (purity 90%, 15.6 mmol) of 4-iodo-6-methoxypyridin-3-carbonitrile and 20 eq. of pyridinium hydrobromide were reacted according to General Method 3A. After aqueous work-up, the crude product was reacted further without further purification. Yield: 1.99 g (purity 77%, 49% of theory) of the title compound as a mixture with 11% of the analogous iodine compound.

Quelle