Triazaphenanthrenes. Part VI. Further observations on the Widman–Stoermer and Borsche reactions
Abstract
The named reactions have been applied to the synthesis of new 1,2,9-triazaphenanthrenes and 1,2,7- and 1,2,5-triazanaphthalenes. A modified Borsche cyclisation appears to be generally applicable to aminoquinolines but attempts to extend this to simpler aromatic systems have failed.