Two reactions, HCl addition and the thermal and (or) microwave assisted Diels-Alder condensation, were performed on α-cubebene (1), a vinylcyclopropane-containing tricyclic sesquiterpene. The diene structures originating from these reactions and from subsequent rearrangements of 1 were identified. The stereochemistry of the resulting adducts was established using mostly 2D high-resolution NMR.
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