Abstract
Heterocyclization of m- and p-phenylenediamines with orthoformic ester and sodium azide has given phenylenebis-1H-tetrazoles. Under these conditions, o-phenylenediamine gives benzimidazole. o-, m-, and p-Phenylenebis-1H-tetrazoles were also obtained from the nitroanilines via the intermediate nitro- and aminophenyltetrazoles. The reactions of the bistetrazoles examined were basic hydrolysis, aminomethylation, and complex formation with copper salts.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1528–1532, November, 1990.
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Gaponik, P.N., Karavai, V.P., Davshko, I.E. et al. Synthesis and properties of phenylenebis-1H-tetrazoles. Chem Heterocycl Compd 26, 1274–1278 (1990). https://doi.org/10.1007/BF00476984
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DOI: https://doi.org/10.1007/BF00476984