The asymmetric syntheses of naturally occurring biologically relevant -abietane diterpenoids, (-)-taiwaniaquinone G (), and H () have been reported via a chiral pool strategy starting from commercially available abietic acid. A ring contraction of the middle ring of the [6,6,6]-carbotricyclic abietane diterpenoid core was carried out under the Wolff rearrangement. Finally, the synthesis of (-)-taiwaniaquinone H () was completed via a one-pot CAN-mediated oxidative decarboxylation.
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| http://dx.doi.org/10.1021/acs.joc.4c02448 | DOI Listing |
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