in 1,2-dichloro-ethane N2-atmosphere; stirring (room temp., 24 h); concg. (reduced pressure), filtering, washing (Et2O), drying (vac.); elem. anal.;

in tetrahydrofuran; ethanol stirring for 2 h; evapn., washing with H2O, drying at 80°C for 12 h;

elem. anal.;

in dimethyl sulfoxide room temp., 30 min; monitored by (1)H NMR;

in acetonitrile stirring (70°C, 2 h), partial solvent evapn. (1/5); recrystn. (dimethylformamide), drying (vacuum); elem. anal.;

in dichloromethane under N2, addn. of complex in CH2Cl2 to soln. of ligand in CH2Cl2, stirred for 25°C for 2 h, white pptn.; evapd. under reduced press., addn. of toluene, heated under reflux for 4 h, pptn., filtered, dried in vac.;