Russian Chemical Bulletin p. 2404 - 2411 (1995)
Update date:2022-08-30
Topics:
Vlad, P. F.
Ungar, N. D.
Tuen, Nguen Van
The superacidic cyclization of aliphatic and partially cyclized C15-C25 terpenoid acids and their esters proceeds structure-selectively and stereospecifically, affording α-isomers of completely cyclized epimeric β,γ-unsaturated acids or esters; the configuration of their carboxylic or ester groups is predetermined by the configuration of the double bond conjugated with the carboxyl or ester groups in the starting compounds. - Key words: terpenoids; acids; esters, superacidic cyclization, selectivity.
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