... (TEMPO) asmediators, since they greatly differ both in their mechan-ism of action and in their specificity. In fact, HPI isrepresentative of a mediator that, after having been oxidizedby laccase, ... obtained in the presence of an organiccosolvent, and also in the presence of two mediating species, i. e. N-hydroxyphthalimide (HPI) and 2,2,6,6-tetramethyl-piperidin-1-yloxy (TEMPO). This approach ... an inhibitor of free-radical chains, it also traps thephenoxy radicals formed by the direct interaction of substrate 1 with laccase [26,30].CONCLUSIONSThe oxidation of an oligomeric series of...