Abstract
The nitration of sym-triazolo[3,4-b]benzothiazole (I) with a mixture of nitric and sulfuric acids has given 6-nitro-sym-triazolo[3,4-b]benzothiazole (II). The structure of II was established by comparing its properties (mp, PMR spectrum) with those of the 7-nitro-sym-triazolo[3,4-b]-benzothiazole (III) obtained by the ring closure of 2-hydrazino-6-nitrobenzothiazole (VI) with orthoformic ester. Compounds II and III have been converted into the corresponding acetylamino derivatives. Saponification of the acetyl groups has given amino derivatives of I.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, Vol. 6, No. 7, pp. 913–915, July, 1970.
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Sycheva, T.P., Kiseleva, I.D., Syrova, G.P. et al. The nitration of sym-triazolo[3,4-b]benzothiazole. Chem Heterocycl Compd 6, 846–848 (1970). https://doi.org/10.1007/BF00471671
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DOI: https://doi.org/10.1007/BF00471671