Diazabicycloalkanes with nitrogen atoms in nodal positions. 14. Synthesis of dibenzo[1′,2′-b,e]-1,4-diazabicyclo[2.2.2]octadienes containing a tertiary amino group in the aromatic ring

The corresponding 2-amino derivatives of phenazinium salts were obtained by the action of dimethylamine and morpholine on N-(2-hydroxyethyl)phenazinium chloride. The subsequent exchange of the hydroxyl group for chlorine and the reductive cyclization of 2-amino derivatives of N-(2-chloroethyl)phenazinium salts leads to 4-aminodibenzo1,2-b,e]-1,4-diazabicyclo2.2.2]octadienes, together with unsubstituted dibenzo-b,e]-1,4-diazabicyclo2.2.2]octadiene and the corresponding 2-aminophenazines.For Communication 13, see 1].Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1658–1661, December, 1986.