Synthesis of a Cofacial Schiff-Base Dimanganese(III) Complex for Asymmetric Catalytic Oxidation of Sulfides

摘要

An optically active dimanganese(III) complex was synthesized by a template reaction of 5,5'-(9,9-dimethylxanthene-4,5-diyl)bis(salicylaldehyde),(lR,2R)-l,2-cyclohexanediamine,and MnCl_2,in which two manganese(III) Schiff-base units are cofa-cially arranged by two 9,9-dimethylxanthenediyl spacers.The dimanganese complex catalyzed the asymmetric oxidation of methyl phenyl sulfide by iodosobenzene.