Organic Electrosynthesis - Fundamentals and Applications of Organic Electrochemistry - page 237

(6.12)
Furthermore, a kinetic study on the anodic
coupling of aromatic compounds has been
carried out in ionic liquids. Anodic oxidation of
1,2-dimethoxybenzene led to the corresponding
trimer, as shown in Eq. 6.13 [44]. In this
reaction, the dimerization rate in ionic liquid is
five to ten times smaller than that in
acetonitrile because of the high viscosity of the
ionic liquid.
(6.13)
N -Heterocyclic carbenes can be generated by
cathodic reduction of imidazolinium-based
ionic liquids [45-47]. The resulting carbenes
are stable bases that are able to catalyze the
Henry reaction as shown in Eq. 6.14 [47].