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).
All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Organic Chemistry