7-endo radical cyclizations catalyzed by titanocene(III). Straightforward synthesis of terpenoids with seven-membered carbocycles

1. Justicia, J.
2. Oller-López, J.L.
3. Campaña, A.G.
4. Oltra, J.E.
5. Cuerva, J.M.
6. Buñuel, E.
7. Cárdenas, D.J.