APPLICATION OF THE SPE METHOD TO ORGANIC ELECTROCHEMISTRY .10. BEHAVIORS OF THE MANGANESE REDOX COUPLE INCORPORATED IN PT-NAFION AND THEIR MEDIATORY OXIDATION OF CINNAMYL ALCOHOL TO CINNAMALDEHYDE

The electrochemical behavior of a manganese redox couple incorporated into an SPE (Solid Polymer Electrolyte) composite electrode using Nafion (Pt-Nafion) was examined as a mediator for electroorganic syntheses. The mediatory reaction of the redox couple was examined in the oxidation of cinnamyl alcohol. The oxidation proceeded smoothly and gave cinnamaldehyde in high selectivity; the current efficiency was as high as 85%. The dissolving-out of manganese from the SPE was suppressed by the addition of 0.025 mol dm-3 MnSO4 to the catholyte.