Unusual [1,2]- and [1,3]-M(CO)5 shifts in Fischer carbene complexes: [4 + 3] and [3 + 3] annulation reactions of furan and pyrrole rings

1. Barluenga, J.
2. Tomás, M.
3. Rubio, E.
4. López-Pelegrín, J.A.
5. García-Granda, S.
6. Priede, M.P.