SULFATION OF ALLOBETULIN BY USING THE SO3-DIOXANE AND SO3-DIMETHYLFORMAMIDE COMPLEXES

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Левданский, Владимир Александрович; Левданский, Александр Владимирович;
(2014)

It was established, that the reaction of sulfation of allobetulin by an chlorosulfonic acid in 1,4-dioxane or N,N-dimethylformamide proceeded at temperature 40–50 °C. It was shown that for full etherification of allobetulin to allobetulin 3-sulfat 4–5 hours were necessa... View more
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