Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2014

Идентификатор DOI: 10.1007/s10600-014-1152-0

Ключевые слова: betulin, 1,4-dioxane, N,N-dimethylformamide, sulfation, betulin 3,28-disulfate, urea, sulfamic acid

Аннотация: Betulin was sulfated by sulfamic acid in the presence of urea in homogeneous solution in 1,4-dioxane or N,N-dimethylformamide (DMF). The reaction time for betulin sulfation in DMF at 60-70A degrees C was 2.0-3.0 h; in 1,4-dioxane at 70-75A degrees C, 3.0-3.5 h. Betulin disulfate was obtained in the acidic form and as the ammonium, sodium, and potassium salts.

Журнал: CHEMISTRY OF NATURAL COMPOUNDS

Выпуск журнала: Vol. 50, Is. 6

Номера страниц: 1029-1031

ISSN журнала: 00093130

Место издания: NEW YORK

Издатель: SPRINGER

• Levdanskii V.A. (Siberian Federal University)
• Levdanskii A.V. (Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences)
• Kuznetsov B.N. (Siberian Federal University)

• Web of Science Core Collection
• Scopus
• Ядро РИНЦ (eLIBRARY.RU)