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A mixture of 5.48 gm (0.04 mole) of 4-acetylpyridine 1-oxide, 5.45 gm (0.04 mole) of benzhydrazide and 100 ml of absolute ethanol is refluxed for a total of 4 hr and cooled. The reaction mixture is evaporated in vacuo to yield a solid which is crystallized from ethanol to yield 7.82 gm (77%) of the title compound having a melting point of 248.9° C. (decomp).

1. temperatureis refluxed for a total of 4 hr
2. temperaturecooled
3. customThe reaction mixture is evaporated in vacuo
4. customto yield a solid which
5. customis crystallized from ethanol