In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Oxidation of organic compounds. XCIV. Synthesis of 3,5-dicyanopyridine by the oxidative ammonolysis of 3,5-butidine, published in 1973, which mentions a compound: 1195-58-0, mainly applied to lutidine ammoxidation; pyridinedicarbonitrile, Product Details of 1195-58-0.
Ammoxidation of 3,5-lutidine (I) using 1:9:17 I-O-NH3 at 350° in the presence of fused vanadium oxide-titanium oxide with a 0.5 sec contact time gave 40% 3,5-pyridinedicarbonitrile (II) and 5-methyl-3-pyridinecarbonitrile. Hydrolysis of II in aqueous NaOH gave 3,5-pyridinedicarboxylic acid.
In addition to the literature in the link below, there is a lot of literature about this compound(Pyridine-3,5-dicarbonitrile)Product Details of 1195-58-0, illustrating the importance and wide applicability of this compound(1195-58-0).
Reference:
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Alcohols – Chemistry LibreTexts