On April 30, 1993, Oleynik, I. V.; Zagulyaeva, O. A. published an article.Formula: C11H8N2O2 The title of the article was Chemical properties of ylidene derivatives of azines. 7. Transformations of 5-methyl(phenyl)-substituted 1,2-dihydro-2-pyrimidinylidenemalononitriles by action of nitric acid. And the article contained the following:
Reaction of title compounds I (R = Me, Ph) with HNO3, depending on the conditions, gave either the corresponding 2-pyrimidinecarboxylic acids or acetonitrile derivatives, e.g., II. The experimental process involved the reaction of 5-Phenylpyrimidine-2-carboxylic acid(cas: 85386-20-5).Formula: C11H8N2O2
The Article related to malononitrile pyrimidinylidene reaction nitric acid, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Formula: C11H8N2O2
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia