T=20°C; 6 h; Inert atmosphereReflux;

MeCN in acetonitrile byproducts: AgCl; Ar atmosphere, refluxing (3-4 h); filtration (Celite, AgCl removal), vol. redn., pptn. (toluene addn.), washing (toluene, Et2O), drying; elem. anal.;

in acetonitrile Ar-atmosphere; dropwise addn. of 4 equiv. CF3SO3H to Ru-complex soln. atroom temp., stirring (room temp., 1 h); concn. (reduced pressure), pptn. on Et2O addn., decantation, washing (Et2O), stirring with Et2O, filtration, washing (Et2O), drying (vac.); elem. anal.;