Rearrangements and biogenetic relationships of silphinane sesquiterpenes
Acid-catalyzed rearrangement of presilphiperfolanol to silphiperfol-6-ene and $\alpha$-terrecyclene formed by way of a silphinyl ion intermediate, suggests that the presilphiperfolanyl carbocation could be an important intermediate and a branch point in the biogenesis of triquinane sesquiterpenes such as silphiperfol-6-ene, silphinene, and related compounds.
University of Illinois - Urbana-Champaign
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University of Illinois at Urbana-Champaign