Metal Complexes with Ligands Bearing a Non-coordinating Organoazide Unit

4 Metal Complexes with Ligands Bearing a Non-coordinating Organoazide Unit 

The next step to bring the organoazide closer to the metal site would be to connect both fragments via a ligand backbone. The probably simplest examples for such type of 

The ferrocenyl fragment is a key example for a sterically and electronically saturated transition metal site. Therefore it is not surprising, that organoazides will not undergo reaction with this system under normal conditions. However, there is a series of other structurally well defined organoazides being in connection to a transition metal centre via a ligand backbone in the literature. 

Modification of stable 18e complexes allows the generation of azide functionalized organometallic complexes. Among a series of other nucleophiles, trimethylsilyl azide is able to react with (T] -6-hydroxy-7-methylnona-2,4,8-triene)tricarbonyliron(0) in the pres- 

The intrinsic reactivity of the azido fragment in the presence of an inert metal site was used by Hahn et al for the synthesis of benzannulated A-heterocyclic carbene ligands. 

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