We have found a family of non-heme iron complexes [FeII(L)(CH3CN)2](L = tetradentate pyridine containing ligand) with cis labile sites that catalyze highly stereo-selective hydrocarbon oxidations using H2O2 as oxidant. The hydrocarbon oxidation reactivity patterns of this family of catalysts divide them into two subgroups: Category A catalysts which carry out highly stereoselective alkane hydroxylation, olefin epoxidation, and olefincis-dihydroxylationvia low-spin FeIII-OOH, FeV=O intermediates and category B catalysts which form high-spin FeIII-OOH intermediates and strongly favor olefin cis-dihydroxylation in (which both diol oxygen atoms derive from H2O2. 6-Methyl substituents on the ligands play an important role in tuning the spin states of the iron centers to afford a family of non-heme iron complexes that catalyze a remarkable array of hydrocarbon oxidation reactions.
|Original language||English (US)|
|Number of pages||8|
|Journal||Journal of the Chemical Society, Dalton Transactions|
|State||Published - 2002|