Synthesis and characterization of 1-allyl-3,7,10-trimethylgermatrane and 1-allylazagermatranes

The reaction between Br(3)GeAll (1) and N(CH2CHMeOSnBu3)(3) (2, mixture of isomers) yielded N(CH2CHMeO)(3)GeAll (3) as a mixture of diastereomers. Thr ee azagermatranes of the type N(CH2CH2NR)(3)GeAll (9, R = H; 10, R = Me; 11 , R = Me3Si) have been synthesized from the reaction of (Me2N)(3)GeAll (5) with N(CH2CH2NHR)(3) (R = H, 6; Me, 7; Me3Si, 8). Composition and structure s of the new compounds were established by elemental analyses, H-1 and C-13 NMR spectroscopy and mass spectrometry.