F. Barba et al., INDIRECT ELECTROCHEMICAL OXIDATION OF CYCLIC-KETONES - INFLUENCE OF RING SIZE, MEDIATOR AND SUPPORTING ELECTROLYTE ON THE RESULT OF THE REACTION, Tetrahedron, 53(12), 1997, pp. 4427-4436
The result of the indirect electrochemical oxidation of cyclic ketones
in methanol in an undivided cell in the presence of sodium halides de
pends on the ring size of ketone and the type of mediator. Selectivity
of the reaction in some cases and current efficiency are increased by
addition of supporting electrolyte - sodium hydroxide. Formation of c
yclic 2,2-dimethoxycycloalkanols and the electrochemically induced Fav
orskii rearrangement with the formation of methyl cycloalkencarboxylat
es containing in the ring one carbon atom less than starting ketone ar
e the main ways of the indirect electrochemical oxidation of cyclic ke
tones. (C) 1997 Elsevier Science Ltd.