SYNTHESIS OF NEW 1,2,3-TRIAZOLO[1,2-A]BENZOTRIAZOLES OR 2,3-BENZO-1,3A,6,6A-TETRAAZAPENTALENES

Some new nu-triazolo [1,2-a]benzotriazoles or 2,3-benzo-1,3a,6,6a-tetr aazapentalenes were prepared according to previously employed syntheti c routes concerning deoxycyclization reactions of appropriate nitrophe nyl-1,2,3-triazole derivatives and/or thermal decompositions of approp riate azidophenyl-1,2,3-triazoles. The nitration of 9-phenyl-1,2,3-tri azolo[1,2-a]benzotriazoles allowed the isolation of some mononitro- an d trinitro-derivatives, whose structures were assigned by chemical and spectroscopic methods.