in benzene byproducts: HCl; 12 h at 60 ° C in a sealde tube, concn. under reduced pressure; anal.; 38percent starting germane left;

trimethylamine byproducts: (CH3)3N*HCl; HCl elimination with excess of NMe3, react. with MesN3 in situ at -80°C, warming to ambient temp., react. of the formed germaimine with benzaldehyde at 20°C;

trimethylamine byproducts: (CH3)3N*HCl; HCl elimination with excess of NMe3, react. with MesN3 in situ at -80°C, warming to ambient temp., react. of the formed germaimine with nitrone at 20°C;

triethylamine in benzene byproducts: (C2H5)3NHCl; Et3N adding in excess to germane soln. in benzene, stirring at ambient temp., Et3NHCl filtering off, ligand adding, heating for 6 h at 130°C; identified by NMR spectrum;

in benzene byproducts: HCl; 12 h at 60 ° C in a sealde tube, concn. under reduced pressure; anal.; 38percent starting germane left;