SULFATION OF BETULIN WITH CHLOROSULFONIC ACID IN DIMETHYLFORMAMIDE AND DIOXANE

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Левданский, Владимир Александрович; Левданский, Александр Владимирович; Кузнецов, Борис Николаевич;
(2013)

It was established, that the reaction of sulfation of betulin by chlorosulfonic acid in dioxane or dimethylformamide proceeds in homogeneous medium at temperature 40–60 °C. It was shown that for complete etherification of betilin to betulin 3,28-disulfat 4–5 hours are n... View more
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