Several kinds of chiral (salen)manganese(III) complexes (2 and 3) having chiral salicylaldehyde and chiral ethylenediamine moieties were prepared and used for catalytic asymmetricepoxidation of unfunctionalized olefins with iodosobenzene as a terminal oxidant. Catalysts 2 and 3 were found to show the characteristic substrate specificity for the enantiofacial selection of olefins, respectively. Furthermore
Manganesecomplex of the opticallyactive salen ligand [N,N'-bis[(S)-3-(1-phenylpropyl)salicylidene]-(1R,2R)-1,2-diphenylethylenediaminato] was found to be an effective catalyst for the enantioselectiveepoxidation of unfunctionalizedolefins. The highest enantioselectivity of 50% ee was realized for (E)-1-phenyl-1-propene.