Aristolane, Aromadendrane, etc

The biogenesis of those sesquiterpenes with a gem-dimethyl cyclopropane ring has been considered in terms of a precursor such as (384). This compound, bi-cyclogermacrene, has now been isolated from the peel oil of Citrus junos, together with germacrene-B and Bicycloelemene (385), previously isolated, is an 

Kfepinsky, G. Jommi, Z. Samek, and F. Sorm, Coll. Czech. Chem. Comm., 1970, 

Complete details of the total syntheses of the antipode of (-f)-aromadendrene and two related diastereoisomers have been reported by Biichi et This 

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