Abstract
Epoxidation of propene with magnesium monoperoxyphthalate used as oxidant and manganese as well as iron polyhalogenated porphyrins as catalysts has been investigated under mild conditions. The systems with manganese tetra- ortho-dichlorophenyl- and tetrapentafluorophenylporphyrin appeared very effective and high turnover numbers and selectivities were observed. Porphyrin complexes in which halogen atoms were present in both the phenyl and pyrrole rings showed lower catalytic activity than the complexes with ligands carrying halogen substituents only on the phenyl rings.
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