Functional metal‐porphyrazine derivatives and their polymers, 5. Peroxidatic oxidation of guaiacol by Fe(III)‐3,4,3′,4′,3″,4″,3‴,4‴‐octacarboxyphthalocyanine (Fe(III)‐oaPc) and Fe(III)‐oaPc/polyelectrolyte systems

The oxidation of guaiacol by the Fe(III)-oaPc/H2O2 system is studied by using a stopped flow spectrophotometer. The maximum rate of oxidation reaction by this system amounts to about 1000 times that in the absence of H2O2. The kinetic investigation indicates that the reaction can be regarded as “an ordered two-substrates reaction” and that the oxidation reaction proceeds according to the peroxidase-like mechanism. The reaction is inhibited by adding cyanide. The structure of oxidation products is also discussed. The catalytic action of Fe(III)-oaPc in the presence of various polyelectrolytes such as poly(vinylamine) is also investigated, varying the pH values, and the environmental effect of the polymers in their catalytic behavior is discussed.