Outer-Sphere Mechanism in the Oxidation of Pyrrole-2-Carboxaldehyde by Hexacyanoferrate (III) Complex.

摘要

The kinetics and mechanism of base-catalyzed oxidation of pyrrole-2-carboxaldehyde with hexacyanoferrate (III) is reported. The reaction showed first order with respect to aldahyde , alkali and hexaeyanoferrate(III). The kinetic data suggest that the oxidation involves the formation of an anion of the substrate undergoes oxidation with hexaeyanoferrate(III) via outer sphere mechanism process. The free radical thus produced is further oxidized to form the final products. A suitable mechanism was proposed and rate law was derived as