Bryophyte Constituents; 6: Synthesis of Herbertene-Derived Sesquiterpenes from Herberta adunca
- 1 July 1996
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1996 (07) , 863-870
- https://doi.org/10.1055/s-1996-4309
Abstract
Efficient total syntheses are described for the racemic sesquiterpenes herbertenolide (2), α-herbertenol (3) and β-herbertenol (4) from Herberta adunca. ent-Herbertenolide [(+)-2] was prepared from enantiopure (-)-ethyl (1R)-1-methyl-2-oxocyclopentanecarboxylate (9) obtained from ethyl 2-oxocyclopentanecarboxylate (19) via reduction with baker’s yeast.Keywords
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