Stablizimg Lead Cathodes for Electro-Organic Reductions

Monday, 2 October 2017: 16:20
Chesapeake 12 (Gaylord National Resort and Convention Center)
S. R. Waldvogel (Johannes Gutenberg University Mainz)
For the cathodic reduction of organic starting materials heavy metals, e.g. lead play an utmost role because of the high over-potential for the hydrogen evolution in protic media. Unfortunately, cathodic corrosion of lead electrodes represents a severe challenge since the product might be contaminated with the toxic heavy metal. The presentation will outline two recent strategies for stabilizing the lead cathodes: 1) leaded bronzes as powerful alternative to lead cathodes, and 2) cationic coverage of cathodes to enhance electro-reduction and avoiding cathodic corrosion. These approaches have successfully employed for the preparation of pharmaceutically relevant compounds and chemical intermediates. In addition, the scalability will be demonstrated as well.