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Sulfation of betulin with chlorosulfonic acid in dimethylformamide and dioxane

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Abstract

The reaction of sulfation of betulin with chlorosulfonic acid in dioxane or dimethylformamide was found to proceed in homogeneous medium at 40–60°C. It was shown that the esterification of betulin to betulin 3,28-disulfate was completed for 4–5 hours. Betulin disulfate was isolated in the form of the sodium salt.

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Authors and Affiliations

  1. Institute of Chemistry and Chemical Technology, Siberian branch of Russian Academy of Sciences, ul. K. Marksa 42, Krasnoyarsk, 660049, Russia

    V. A. Levdansky, A. V. Levdansky & B. N. Kuznetsov

  2. Siberian Federal University, pr. Svobodny 79, Krasnoyarsk, Russia

    V. A. Levdansky & B. N. Kuznetsov

Authors
  1. V. A. Levdansky
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  2. A. V. Levdansky
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  3. B. N. Kuznetsov
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Correspondence to B. N. Kuznetsov.

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Original Russian Text © V.A. Levdansky, A.V. Levdansky, B.N. Kuznetsov, 2013, published in Khimiya Rastitel’nogo Syr’ya, 2013, No. 1, pp. 107–111.

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Levdansky, V.A., Levdansky, A.V. & Kuznetsov, B.N. Sulfation of betulin with chlorosulfonic acid in dimethylformamide and dioxane. Russ J Bioorg Chem 40, 748–751 (2014). https://doi.org/10.1134/S1068162014070097

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  • DOI: https://doi.org/10.1134/S1068162014070097

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