Organic Electrode Reactions - Fundamentals and Applications of Organic Electrochemistry - page 141

since electrolytic reactions usually require polar
solvents. It should therefore be noted that such
excellent results of asymmetric electrosynthesis
were realized even in polar solvents.
The combination of enzymes such as lactic acid
dehydrogenase and mediators or chiral
mediators is also effective for electrochemical
asymmetric synthesis and kinetic resolution to
provide products with high asymmetric yields
[42-44].
5.4 Modified Electrodes
As described previously, electrode surfaces and
the vicinities of electrodes are the main reaction
fields for electrode reactions, therefore if the
electrode surface is modified with desired
functional substances such as electrocatalyst,
and chiral compound, the efficiency, desired
selectivity, asymmetric synthesis, and etc.
would be realized. Such electrodes are called
modified electrodes and their use enables the
amount of functional materials required to be
reduced and the work-up for electrolytic
solutions to be simplified [45]. Excellent
durability is needed for the modified electrodes
for electrosynthesis since both a large
electrolytic current and long electrolysis time
are required, which is different from modified
electrodes for sensors. Modified electrodes are
classified as follows depending on modification
methods and modifiers.