A new method for preparing allobetulin via thermal rearrangement of betulin in the presence of phenylthiourea without using acidic reagents was found.
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Translated from Khimiya Prirodnykh Soedinenii, No. 5, September–October, 2017, pp. 769–771.
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Mamaeva, E.A., Kalieva, S.S., Tashenov, A.K. et al. Synthesis of Allobetulin Using Phenylthiourea. Chem Nat Compd 53, 904–906 (2017). https://doi.org/10.1007/s10600-017-2152-7
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DOI: https://doi.org/10.1007/s10600-017-2152-7