One-step conversion of azine N-oxides to alpha-1,2,4-triazolo-, 1,2,3-triazolo, imidazolo-, and pyrazoloheteroarenes.

ABSTRACT

Pyridine, quinoline, isoquinoline, azaindole, and pyrimidine N-oxides were converted to their alpha-triazole and alpha-diazole derivatives by treatment with the corresponding p-toluenesulfonylazoles and Hunig's base at elevated temperatures.