D. Spitzner et K. Oesterreich, Anionically induced domino reactions - Synthesis of a norpatchoulenol-typeterpene, EUR J ORG C, (10), 2001, pp. 1883-1886
The tricyclic terpenoid compounds 3 and 4 were made from the functionalized
bicyclo[2.2.2]octane 7. The final ring was closed by an olefin metathesis
reaction.