Organic Electrode Reactions - Fundamentals and Applications of Organic Electrochemistry - page 147

electrolysis of an aqueous solution of sodium
chloride, sodium hydroxide is produced at the
cathode, while chlorine gas is formed at the
anode. Thus, both electrode reactions are
efficiently utilized. In organic electrolysis, the
synthesis of desired products is performed by
either cathodic or anodic reaction. Hence, in
most cases, the reaction products at the counter
electrode are wasted, therefore the
simultaneously synchronous utilization of both
cathode and anode reactions for efficient
synthesis of desired products is preferable from
a practical point of view. Paired
electrosynthesis is based on this methodological
concept. Baizer first formulated and
demonstrated approaches to the above concept,
and introduced the term of paired
electrosynthesis [19,52]. At most 200% current
efficiency could be expected in the ideal case of
paired electrosynthesis using cathodic and
anodic processes to provide the same product.
Recently, BASF Co. in Germany commercialized
paired electrosynthesis for the first time.
Phthalide and t -butylbenzaldehyde
dimethylacetal are produced simultaneously in
an undivided cell. The details are described in
Chapter 8 .
Paired electrosynthesis is classified in the
following ways based on reaction modes
[19,52].
Parallel paired electrosynthesis
(electrosynthesis of different