Germylenes kinetic stabilization reactions

A variety of preparation methods are known for transient germanium-chalcogen double bond species some of them seemed to be useful also for the synthesis of kinetically stabilized systems. Indeed, the reaction of a germylene with an appropriate chalcogen source was found to be one of the most versatile and general methods for the synthesis of stable germanium-containing heavy ketones (Scheme 21). 

The reaction of kinetically stabilized germylenes with metal complexes has proven a useful and not surprising route to complexes containing a metal-germanium double bond. Thus, the reaction of germylenes containing bulky aryl groups with the metal carbonyls... 

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