THE OXIDATION OF ACROLEIN CATALYZED BY A METAL POLYPHTHALOCYANINE
Kinetic studies on the homogeneous liquid-phase oxidation of acrolein using a metal polyphthalocyanine as a catalyst revealed that the rate of chain initiation (Ri) can be expressed as Ri = k1(acrolein)(cat)(O2). The rate constant k1 is determined as (6.3±0.3)×10−2 M−2sec−1 at 40 °C in benzene. The result may indicate that a phthalocyanine–O2 complex abstracts the aldehyde hydrogen to initiate the oxidation.