Dehydrative cyclization of alkynals: Vinylidene complexes with the C β incorporated into unsaturated five- or six-membered rings

1. Batuecas, M.
2. Escalante, L.
3. Esteruelas, M.A.
4. García-Yebra, C.
5. Oñate, E.
6. Saá, C.