3-Ethoxy-2-propenenitrile → 1-(Pyridin-3-yl)-1H-pyrazol-3-amine

Beteiligte Stoffe

Reaktionsschritte

In a typical reaction, 3-hydrazinopyridine.dihydrochloride and an anhydrous alcohol are introduced into a reaction vessel and the alkoxide base is gradually added. The mixture is stirred and the 3-ethoxyacrylonitrile is added. The mixture is stirred at about 80° C. until most of the 3-hydrazinopyridine has reacted. The mixture is allowed to cool and the excess base is neutralized with acid. The crude 3-(3-amino-1H-pyrazol-1-yl)pyridine (8a) is conveniently isolated and purified by standard techniques.

Herkunft & Nachweise