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Proposed a method of synthesis of new cyano containing compounds of oxazepine and thiazepine series based on activated aromatic nucleophilic substitution reaction of bromine atom and nitro group in 4-bromo-5nitrophthalonitrile by various bifunctional O-, N-, S-nucleophiles.

Ring closure reactions O 0130 Synthesis of Six-Membered O-, N-and S-Containing Heterocyclic Compounds Fused with a Phthalonitrile Fragment. -(ABRAMOV, I. G.; SMIRNOV, A. V.; KALANDADZE, L. S.; SAKHAROV, V. N.; SAPEGIN, A. V.; PLAKHTINSKII, V. V.; Izv.