toluene in toluene Ar atmosphere, refluxing (3 h); sublimation of PMe3, recrystn. of B-complex (hot toluene), washing (toluene), drying (0.001 Torr); elem. anal.;

 in  toluene  Ar atmosphere, stirring (room temp., 2 h); filtn., concn. (14 Torr, pptn.), drying (0.001 Torr); elem. anal.;   

Multi-step reaction with 2 steps 1: tetrahydrofuran2: toluene