Organic Electrosynthesis - Fundamentals and Applications of Organic Electrochemistry - page 210

Figure 6.9 Example of electrolysis using
phase-transfer catalysis
6.4.4 Thermomorphic Biphasic
Electrochemical Reaction System
Chiba and co-workers constructed
thermomorphic biphasic electrochemical
reaction systems composed of organic solvents
of different polarity (e.g.
cyclohexane-nitroalkanes) [15]. As shown in
Figure 6.10 , in the thermally immixed
homogeneous electrolyte solution, the anodic
desulfurization proceeds smoothly to give
o -quinone methide, and then reacts with
terpene to give the cycloadduct as a final
product. After the completion of the
electrolysis, the product as the cyclohexane
solution can be separated from the polar
electrolytic solution (nitroalkane phase) simply
by on-cooling phase separation. In addition, the
separated polar electrolytic solution can be
reused for the next cycle of the reaction.