Regioselective cyclization of ±,Ω-alkynoic acids catalysed by TpRu complexes: Synthesis of endocyclic enol lactones [Tp = hydrotris(pyrazolyl)borate]

1. Jiménez-Tenorio, M.
2. Carmen Puerta, M.
3. Valerga, P.
4. Moreno-Dorado, J.
5. Guerra, F.M.
6. Massanet, G.M.