Hydrazido complexes synthesis

A general approach to rhenium hydrazido complexes is the reaction of oxo or chloro compounds with organohydrazines as has been demonstrated in an early report with the synthesis of [Re NNC(Ph)0 Cl2(PPh3)2] (310), " the molecular structure of which was solved in 1988. A detailed study on [Re(NNR)Cl2(PPh3)2] complexes with R = COPh or phthalazine shows that the course of subsequent reactions is governed both by the nature of the donor group R responsible for chelate closure and by the type of donor ligand introduced. No simple substitution chemistry has been observed for R = phthalazine. The benzoyl compound... 

Methods of Synthesis of Hydrazide Complexes 133.7.2.1 Hydrazido(2 ) complexes... 

The hydrazido unit can be used as a Cp side arm donor substituent instead of the amido functionality and to stabilize cationic catalytic species. The synthesis and characterization of amido, chloro, and methyl Cp-hydrazido titanium complexes (C5Me4SiMe2NNMe2)TiR2 (R = NMe2, Cl, Me) (Scheme 313) have been made by general... 

Another synthesis of alkyldiazenido complexes is due to Chatt et al. (1977 b), and independently to the work of Hidai et al. (1976 b), namely a route by condensation of hydrazido(2 —) metal complexes with aldehydes or ketones. The original work of Hidai et al. (1976 a) concentrated on molybdenum complexes, that of Chatt et al. (1977 b) on tungsten, but both groups used the same type of ligands as their starting material complexes, namely [Mo(NNH2)(dppe)2] X (X = F, Cl, Br or I). The... 

Crossland JL, Balesdent CG, Tyler DR. Intermediates in the reduction of N2 to NH3 synthesis of iron tl -hydrazido(l-) and diazene complexes. Dalton Trans. 2009 4420-4422. 

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