R. Balicki et L. Kaczmarek, SIMPLE AND CONVENIENT DEOXYGENATION OF HETEROAROMATIC N-OXIDES WITH SODIUM HYPOPHOSPHITE, Gazzetta chimica italiana, 124(9), 1994, pp. 385-386
Sodium hypophosphite catalytic transfer hydrogenation in the presence
of 10% palladium on carbon constitutes a simple and excellent deoxygen
ation method for heteroaromatic N-oxides in acetic acid medium.