3 years ago

Allobetulin Ring A Contraction Effected by Sulfur Diethylaminotrifluoride

A. N. Fedorov, D. E. Samoilenko, M. V. Shafeeva, V. V. Abzianidze, Yu. G. Trishin


The action of sulfur diethylaminotrifluoride on 19β,28-epoxyoleanan-3-ol (allobetulin) causes dehydration of the terpenoid and isomerization of the ring A via its contraction to isopropylcyclopentene ring resulting in 19β,28-epoxy-A-neo-18α-olean-3(5)-ene (α-allobetulin) in a high yield.

Publisher URL: https://link.springer.com/article/10.1134/S1070363218090347

DOI: 10.1134/S1070363218090347

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