equation presented Stabilized ketone, aldehyde, and ester enolates react with vinamidinium hexafluorophosphate salts and hydroxylamine hydrochloride to give access to the corresponding pyridine N-oxides. The annulation reactions proceed in good to excellent yields with vinamidinium salts with a range of β-substituents (R3 = halo, aryl, nitro, trifluoromethyl).
|Original language||English (US)|
|Number of pages||3|
|State||Published - Jan 25 2001|
All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Organic Chemistry