(η5-C5H5)Fe(CO)2Me in N,N-dimethyl-formamide byproducts: Me2NCH3; Ge compd. was treated with Fe catalyst in DMF at 100°C for 24 h in sealed tube;

(η5-C5H5)Fe(CO)2Me in N,N-dimethyl-formamide Bu2GeH2 was treated with Et3SiH (2 equiv.) in DMF in presence of Fe catalyst at 100°C for 24 h in sealed tube;