Intramolecular [4 + 2] Cycloaddition Reactions of Diarylacetylenes: Synthesis of Benzo[b]fluorene Derivatives via Cyclic Allenes

1. Rodríguez, D.
2. Navarro, A.
3. Castedo, L.
4. Domínguez, D.
5. Saá, C.