ABSTRACT
The electrode material may react with radical intermediates, particularly in strongly acid solutions. Extensive corrosion of lead cathodes to give lead containing organic compounds has been noted in the presence of aldehydes and ketones [11-13]. Mercury compounds also form at a mercury cathode [14). Organometallic intermediates are involved in the electrochemical Clcmmensen reaction discussed later for the conversion of the carbonyl group to methylene. The conversion of aromatic ketones or methylene can also be achieved by catalytic hydrogenation using hydrogen, generated electrochemically, at cathodes of platinum or palladium [15).
