in toluene (Ar); using Schlenk techniques; addn. of 1 equiv. of dimethyl sulfide tostirred soln. of Ge(OMes)2(tmeda) in toluene at room temp.; stirring fo r 16 h; removal of solvents in vac.; recrystn. in Et2O;

1: toluene 2: toluene View Scheme