DIAZOCYCLOALKANES WITH NITROGEN ATOMS IN NODAL POSITIONS. 14. SYNTHESIS OF DIBENZO-1,4-DIAZABICYCLOOCTADIENES CONTAINING A TERTIARY AMINO GROUP IN THE AROMATIC RING

Article abstract of DOI:10.1007/BF00474356

The corresponding 2-amino derivatives of 2-amino derivatives of phenazinium salts were obtined 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 cylization of 2-amino derivatives of N-(2-chloroethyl)phenazinium salts leads to 4'-aminodibenzo<1',2'-b,e>-1,4-diazabicyclo<2.2.2>octadienes, together with unsubstituted dibenzo--1,4-diazabicyclo<2.2.2>octadiene and the corresponding 2-aminophenazines.