source: Journal of Organometallic Chemistry year: 2000 volume: 606 first page: 55 last page: 64 doi: 10.1016/S0022-328X(00)00287-4
Abstract: New RuCl2(p-cymene)(ER2R') complexes (E = P, As, Sb; R, R' = H, alkyl, arylalkyl) have been synthesized and used as catalyst precursors for the ring-opening metathesis polymerization (ROMP) of cyclooctene, cyclopentene, and norbornene. When ER2R' was a phosphinoarene, the p-cymene ligand could be displaced upon heating and tethered (η1:η6- phosphinoarene)RuCl2 complexes were obtained. Simple thermogravimetric analysis (TGA) of the complexes provided clear-cut indication on their potential catalytic activity in ROMP.
Keywords: Ruthenium, Carbene, Cyclooctene, Ring-Opening Metathesis Polymerization, Cyclopropanation, Homogeneous Catalysis