反应详情

Add selenium dioxide (2.69 g, 24.2 mmol) to a solution of 2-hydroxymethyl-isonicotinonitrile (5.86 g, 43.7 mmol) in dioxane (120 mL). Heat reaction to 80° C. After 4 hours, cool to room temperature. Add dichloromethane (500 mL) and celite and stir. After 15 minutes, filter through a plug of silica eluting with dichloromethane. Concentrate filtrate under reduced pressure to yield the title compound as an orange solid (5.30 g, 92%): 1H NMR (DMSO-d6) δ 8.19 (dd, 1H), 8.34 (t, 1H), 9.07 (dd, 1H), 10.01 (s, 1H).

1. temperatureHeat
2. customreaction to 80° C
3. waitAfter 15 minutes
4. filtrationfilter through a plug of silica eluting with dichloromethane