Abstract
In a search for compounds that have thermochromic properties, a group of formazans that contain benzimidazolyl (benzothiazolyl), methyl (phenyl), and hydroxydinitrophenyl (anthraquinoyl) groups in the 1-, 3-, and 5-positions, respectively, were synthesized. Benzimidazolylformazans with a picramic acid residue in the 5-position have thermochromic properties.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 970–973, July, 1971.
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Rybakova, Y.A., Bednyagina, N.P. Synthesis of thermochromic formazans of a number of benzazoles. Chem Heterocycl Compd 7, 906–908 (1971). https://doi.org/10.1007/BF00475723
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DOI: https://doi.org/10.1007/BF00475723