Oxidation of olefins catalyzed by iron complexes of bleomycin model compounds bearing a hydrophobic or hydrophilic steric factor

Article Abstract:

Olefin oxidation catalyzed by iron complexes of bleomycin-model compounds with a hydrophilic or hydrophobic steric factor has been examined. The bleomycin-model iron complexes that have a steric factor, either hydrophilic or -phobic around the sixth coordination sphere, showed substrate stereoselectivity and specificity to a considerable degree in oxidation of cis- and trans-olefins in a solution of methanol with hydrogen peroxide. Catalytic efficiency of the complexes was related in some way to the steric factor's characteristics, not oxygen-activating ability of the complexes.

Research, Molecular structure, Oxidation-reduction reaction, Oxidation-reduction reactions, Micelles, Stereochemistry, Bleomycin

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The rhodium(II)-catalyzed aziridination of olefins with (((4-nitrophenyl)sulfonyl)imino)phenyl-lambda3-iodane

Article Abstract:

Rhodium(II)-catalyzed aziridination of olefins with (((4-nitrophenyl)sulfonyl)imino)phenyl-lambda3-iodane with (Rh2(OAc)4) as catalyst gives yields as high as 85% when the olefin is in great excess. A one-step mechanism for movement of the nitrenoid moiety to the catalyst from the catalyst would be consistent with experimental findings.

Observations, Catalysis, Organosulfur compounds, Organic sulfur compounds, Rhodium, Styrene, Azo compounds

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