Reactive metal electrodes

The use of reactive metal electrodes are also effective for the silylation of various organic halides and simple arenes [75]. For instance, Dunogues et al. reported that electrolysis of aryl chlorides in the presence of excess Me3SiCl in a one-compartment cell equipped with a sacrificial aluminum anode in 80 20 THF/HMPA gave the corresponding aryltrimethylsilanes (Scheme 36). When... 

Selective silylation of polychloromethanes using reactive metal electrodes such as zinc and magnesium has also been reported as shown in Scheme 37 [76, 77]. The electroreduction of carbon tetrachloride and chloroform in the presence of chlorotrimethylsilane affords the monosilylated and disilylated products. The product selectivity seems to depend upon the electrode material. 

It should be also recognized that enormous advances have been made in the study of the electrochemistry of halosilanes. In this field, reactive metal electrodes provide powerful tools for the formation of Si-Si bonds. The eleetrochem-istryof polysilanes is also a fascinating area of research because Si-Si bonds serve as unique electron pools. 

Pt or a reactive metal electrode including Fe, Co, or Ni depending on the desired product, are usually employed [5],... 

Electrocatalysts for Carbon Dioxide Reduction Electrosynthesis in Supercritical Fluids Reactive Metal Electrode... 

Application of reactive metal electrode gives several advantages in electrochemical synthesis. 

The cathodic limit is given by the reduction of either protons or H2O and the available range of potentials follows the hydrogen over-potential scale of the metals the anodic limit is given by the oxidation of either H2O or the metal electrode. When considering Figs. 3 and 4 with respect to the reactions of Table 1, it is clear that the use of reactive metal electrodes such as Fe, Zn, Cu, A1 restricts the number of the electrode reactions which are within the reach of metals of higher inertness such as Hg for the cathodic and Pt for the anodic processes. 

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