Synthesis of new dipyridotetraazapentalenes

D Balachari, ML Trudell

Index: Balachari, Devan; Trudell, Mark L. Tetrahedron Letters, 1997 , vol. 38, # 50 p. 8607 - 8610

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Citation Number: 18

Abstract

The new heteroaromatic compounds, dipyridotetraazapentalenes 3–5, were synthesized in two steps from readily available triazolopyridines 6 and 10. N-Arylation of 6 and 10 followed by subsequent reductive cyclization of the N-(nitropyridyl)-triazolopyridines with triethylphosphite in toluene afforded 3, 4 and 5, respectively, in good yields. Nitration of 3 afforded the new energetic tetranitrotetraazapentalene derivative 15 in 58% yield.