окисление

Substituted quinazolines of various degrees of saturation and functionalization possess a wide spectrum of biological activity, in particular, anticancer activity, which predetermines the importance of obtaining new representatives of this type of compounds and studying their practically useful properties. Methods for the preparation of 2-cyanoiminoquinazolines are poorly described in the literature, while their properties and oxidation reactions have not been studied at all.

Industrial development leads to an increasing number of persistent and highly toxic organic compounds such as phenol and formaldehyde. Chemical oxidation processes (in particular, photooxidation) are widely used for water treatment and wastewater and groundwater treatment. As part of the work done, an assessment of the possibility of using photocatalysis for post-treatment of wastewater from phenol, formaldehyde, and their mixtures has been carried out.

Выявлены направления окисления азолоцикланодигидропиримидинов в зависимости от строения субстрата (размер алициклического фрагмента, наличие илиденового фрагмента) под действием различных окислителей.

При окислении тетразолодигидропиримидинов, аннелированных
карбоциклами С6-С8
, хромовым ангидридом в растворе уксусной
кислоты при 800С образуются исключительно продукты аромати-
зации пиримидинового фрагмента – тетразолоцикланопирими-
дины. Приведена вероятная схема реакций.