(–)-Herbertene, an aromatic sesquiterpene with a novel carbon skeleton from the liverwort Herberta adunca
Abstract
The structure of (–)-herbertene, an aromatic sesquiterpene hydrocarbon isolated from the liverwort Herberta adunca, has been determined as (1S)-1,2,2-trimethyl-m-tolycyclopentane (3) on teh basis of chemical and spectral evidence.