Mononuclear Nonheme Iron(III)-Iodosylarene and High-Valent Iron-Oxo Complexes in Olefin Epoxidation Reactions.
High-spin iron(III)-iodosylarene complexes are highly reactive in the epoxidation of olefins, in which epoxides are formed as the major products with high stereospecificity and enantioselectivity. The reactivity of the iron(III)-iodosylarene intermediates is much greater than that of the corresponding iron(IV)-oxo complex in these reactions. The iron(III)-iodosylarene species-not high-valent iron(IV)-oxo and iron(V)-oxo species-are also shown to be the active oxidants in catalytic olefin epoxidation reactions. The present results are discussed in light of the long-standing controversy on the one oxidant versus multiple oxidants hypothesis in oxidation reactions.
Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750 (Korea).
Bin
B
Wang
Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750 (Korea).
Yong-Min
YM
Lee
Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750 (Korea).
Mi Sook
MS
Seo
Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750 (Korea). wwnam@ewha.ac.kr.
Wonwoo
W
Nam
D000475:Alkenes / Q000737:chemistry*; D056831:Coordination Complexes / Q000737:chemistry*; D004852:Epoxy Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D005290:Ferric Compounds / Q000737:chemistry*; D006418:Heme; D007462:Iodobenzenes / Q000737:chemistry*; D015394:Molecular Structure; D010084:Oxidation-Reduction
D000475:Alkenes; D056831:Coordination Complexes; D004852:Epoxy Compounds; D005290:Ferric Compounds; D007462:Iodobenzenes; D006418:Heme
bioinorganic chemistry; enzyme models; epoxidation; iron complexes; reaction mechanisms