Journal
INORGANIC CHEMISTRY
Volume 49, Issue 7, Pages 3083-3085Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic902517j
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Funding
- NSF [CHE0909587, CHE0606614]
- Queen Sirikit Scholarship (Thailand)
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The manganese(V) oxo complex (TBP(8)Cz)Mn-V(O) (1) is shown to catalyze the epoxidation of alkenes with a series of iodosylarenes (ArlO) as oxidants. Competition experiments reveal that the identity of ArlO influences the product ratios, implicating an unusual coordinated oxo metal ArlO intermediate (1-OIAr) as the active catalytic species. The isoelectronic manganese(V) imido complex (TBP(8)Cz)Mn-V(NMes) (2) does not participate in NR transfer but does catalyze epoxidations with ArlO as the O-atom source, suggesting a mechanism similar to that seen for 1. Direct evidence (ESIMS) is obtained for 1-OIMes.
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