A. Furstner et al., CATIONIC RUTHENIUM ALLENYLIDENE COMPLEXES AS A NEW CLASS OF PERFORMING CATALYSTS FOR RING CLOSING METATHESIS, Chemical communications, (12), 1998, pp. 1315-1316
Cationic allenylidene ruthenium complexes [Ru= C=C=CR2(L)(Cl)(arene)IP
F6 (L = PCy3, PPr3i), easily prepared from RuCl2(L)(p-cymene), prop-2-
yn-1-ol and NaPF6, are found to be excellent catalyst precursors for r
ing closing olefin metathesis.