Germanium—nitrogen bonds

The methods for the preparation of compounds containing germanium-nitrogen bonds have been the subject of a recent review.140... 

In principle alkali metal derivatives of germanes can be converted to compounds containing a germanium-nitrogen bond. This synthetic method is of a very limited scope since trialkylgermyl-alkali metal compounds can... 

New Methods for the Synthesis of Germanium-Nitrogen Bonds The Preparation of Compounds in Which the Nitrogen Atom is Part of a Heterocyclic System... 

Moreover, while investigating the properties of these compounds some other types of compounds containing a germanium-nitrogen bond were prepared for comparison purposes. In Table IV the compounds synthesized and the methods of preparation employed are summarized. 

New Organogebmanium Compounds Containing a Germanium-Nitrogen Bond"... 

Apparently the germanium-nitrogen bond in the substituted aliphatic amines and in the substituted heterocycles with more than one nitrogen atom in the ring is very reactive toward reagents with a distinctly acidic character, e.g., phenol and ethyl alcohol. An entirely different behavior was found for tributylgermanium-substituted indole, pyrrole, succinimide, and phthalimide, which are completely stable toward these reagents, or at most react very slowly. 

Reactivity of the Germanium-Nitrogen Bond in Compounds of the Type (n-C4H9)3GeN towards Equivalent Amounts OF Various Reagents in Benzene Solution (0.5 M)... 

The compounds with a reactive germanium-nitrogen bond readily undergo transamination and substitution reactions with compounds having proton-active hydrogen atoms. In particular the transamination reaction offers a route to many other germanium derivatives. It may be expected, therefore, that the digermazanes will prove to be very suitable intermediates for the preparation of many new compounds. 

Dehydrohalogenation reactions appeared to be a convenient route to double bond germanium nitrogen species and were commonly carried out with an organolithium compound as a base.3,4 5b 6 7 96,97 123 Accordingly, the synthesis of two moderately hindered stable germanimines Mes2Ge = NR 136 and 137 has been reported.59 Stabilization in these cases is achieved... 

Reactivity of stable germanium-nitrogen double bond compounds has been widely documented in previous reviews.3,4,6,7,119... 

Comparison of theoretical data with experimental spectra led also to the identification of compounds which have germanium-nitrogen double and triple bonds. Foucat et al. report about the results of flash vacuum thermolysis of substituted germacyclopentenes and DFT (B3LYP) calculations of model compounds of possible reaction products114. The authors took the experimental photoelectron (PE) spectra and compared them with... 

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