Abstract: Monometalloporphyrin and p-oxo-bismetalloporphyrin compounds of metal iron,manganese and cobalt were synthesized, and used as the model compounds of cytochrome P-450 monooxygenase in catalytic oxidation of cyclohexane with iodosobenzene. The influence of the addition of magnetic field on the catalytic properties of these metalloporphyrins was in-spected. The studies reveal that the influence of the addition of magnetic field on the catalyt-ic behavior of other metalloporphyrins does not go beyond 37% except monoironporphyrin.But the addition of magnetic field makes the reaction yield of cyclohexane oxidation catalyzed by monoironporphyrin be increased to 53%, and makes the rate of reaction be twice as much. This fact means that the catalytic processes of cytochrome P-450 monooxygenase in human bodies may be bound up with earth magnetic field closely. This discovery has singular meaning to unlock the mystery of biosphere consisting of human and earth.

Key words: Magnetic field effect, Metalloporphyrin, Catalytic oxidation