A chiral iron-sexipyridine complex as a catalyst for alkene epoxidation with hydrogen peroxide

Abstract

A chiral iron-sexipyridine complex-hydrogen peroxide mixture is a highly efficient catalytic system for styrene epoxidation with excellent reactivity (3 min, 95% yield) and chemoselectivity (98%).

Co(II), Fe(III) or VO(II) Schiff base metal complexes immobilized on graphene oxide for styrene epoxidation

“…Transition metal Schiff base complexes are known to act as efficient homogeneous catalysts for a number of organic transformation reactions, which are similar to biological catalysts . For example, a chiral iron–sexipyridine complex is a highly efficient catalytic system for styrene epoxidation with excellent reactivity . However, they suffer from some disadvantages, such as low stability, high cost and difficulty of recovery, which hamper their wide application .…”

Fe-Catalyzed Oxidation Reactions of Olefins, Alkanes, and Alcohols: Involvement of Oxo- and Peroxo Complexes

“…Additional recent ligand developments to be mentioned are the chiral bipyridine ligand 13 and the polypyridine ligand 14 (Scheme 7) [47,48]. The m-oxo-dinuclear iron complex of 13 performed the enantioselective epoxidation with peracetic acid in high conversion and yield.…”

Transition Metal‐Catalyzed Epoxidation of Alkenes

“…An interesting chiral bimetallic iron complex was recently presented by Kwong and coworkers [118]. Starting from the enantiomerically pure sexipyridine ligand 24 Even though only moderate enantiomeric excesses were obtained using the chiral iron-containing catalysts described above, these examples are of particular interest, since further elaboration along these lines could produce more selective catalysts.…”