Aromatic azapentalenes. II. Reactions of monobenzo- and dibenzo-1,3a,4,6a-tetraazapentalenes

Five‐Membered Heterocycles with Three Heteroatoms: Triazoles

“…N-Arylation of 1,2,3-triazoles is possible with activated aryl halides. Activated aryl halides such as 1-fluoro-2-nitrobenzene and 1-fluoro-4-nitrobenzene with 1H-1,2, 3-triazoles afforded mixtures of the corresponding 1-and 2-nitrophenyl-1,2,3-triazoles [115,116]. However, reactions with even more activated halides such as 1-fluoro-2,4-dinitrobenzene and 2-chloro(or fluoro)-1,3,5-trinitrobenzene provided only 1-substituted-1H-1,2,3-triazoles 84 (Scheme 12.35) [116].…”

Preparation and thermal studies on tetranitrodibenzo tetraazapentalene (TACOT): A thermally stable high explosive

“…Its precursor dibenzo-1,3a,4,6a-tetraazapentalene is reported to have planar structure and shows no detectable dipole moment [13,19]. This precursor belongs to tetraaza pentalene class of compounds, which are known to have high thermal and chemical stability derived out of aromaticity [20]. These tetraazapentalenes can be represented as hybrids of two charge-separated forms.…”

Ultraviolet and Visible Spectra of Tacot (Tetranitrodibenzo-1,3a,4,6a-Tetraazapentalene) in Various Solvents

“…It was found that satisfactory straight-line calibration curves (using a Beckman Model B spectrophotometer) were obtained for sulfuric acid, perchloric acid, nitric acid, and dimethylsulfoAide at 416, 486, 487, and 506 nm, respecr 4 -.-ly. Glycerin was not satisfactory because of its viscosity.…”