m-Oxobis[tetraphenylporphinatoiron(III)], [TPPFe(III)]2O, was synthesized by passing TPPFe(III)Cl through a neutral al2O3 chromatog. column, and was characterized by HPLC, IR, and UV visible spectroscopies and elemental anal. Just as TPPFe(III)Cl, it has the properties of catalyzing the oxidation reaction of cyclohexane with PhIO under room temperature and atomsphere In the oxidation reaction of cyclohexane, the yields of the oxidation products in CH2Cl2 and cyclohexane medium were 14.97% and 62.6%, resp. In cyclohexane solvent, the quantities of products linearly correlated with the reaction time, and the induction period was ~3 h, but both this linear correlation and induction period were absent in CH2Cl2. Compared with TPPFe(III)Cl, [TPPFe(III)]2O was more stable because it was less easily oxidized by oxidants. The above facts showed that [TPPFe(III)]2O could be used as a model of cytochrome P 450 monooxygenase.

Key words: PORPHINE P, CATALYST, ALUMINIUM OXIDE, IRON COMPLEX, CHROMATOGRAPHIC COLUMN, ANALOGITS, CYTOCHROME, MODEL COMPOUND