Methylgermanium halides

For the preparation of methylgermanium halides, tetramethylsilene can be used290. The catalytic amount of AICI3 or AlBr3 used in this process enables the selective mono-, di-, tri- or tetra-methylation of GeCl4. 

Once a small amount of the halogen from the methylsilicon moiety has been transferred to the methylgermanium moiety, the methylgermanium halides come to equilibrium with each other rapidly and remain in a state of dynamic... 

---