76228-29-0Relevant academic research and scientific papers
Synthesis and interconversions of azagermatranes
Wan, Yanjian,Verkade, John G.
, p. 79 - 81 (2008/10/08)
The syntheses of the first examples of the title compounds, namely, ZGe(NRCH2CH2)3N (4, R = H, Z = Me; 5, R = Me, Z = Me; 6, R = H, Z = t-Bu; 7, R = Me, Z = t-Bu; 8, R = Me, Z = NMe2) are reported. Syntheses of the new compounds MeGe(NMe2)3 and t-BuGe(NMe2)3 and an improved synthesis of Ge(NMe2)4 are also recorded. The azagermatranes 5 and 7 are transformed to 4 and 6, respectively, in the presence of (H2NCH2CH2)3N. This reaction was not found to be reversible, however. Azagermatranes 4 or 5 and 6 or 7 in the presence of (HOCH2CH2)3N easily react to give MeGe(OCH2CH2)3N and t-BuGe(OCH2CH2)3N, respectively. Because of steric factors, one or more of compounds 6-8 may display weakened transannular Ge←N bonding or even an absence of this bonding.
