6533b850fe1ef96bd12a8601

RESEARCH PRODUCT

Ti(iv)-amino triphenolate complexes as effective catalysts for sulfoxidation

Giulia LiciniMiriamCristiano ZontaKari RissanenMassimo CamettiLeonard J. PrinsArto Valkonen

subject

Aqueous solutionoxidationChemistryhydrogen peroxideEnvironmentally friendlysulfoxidationCatalysisInorganic Chemistrychemistry.chemical_compoundtitanium complexes; sulfoxidation; hydrogen peroxide; tripodal ligands; c3 symmetry; oxidationProton NMROrganic chemistryFunctional studiestitanium complexesc3 symmetryHydrogen peroxidetripodal ligands

description

C 3 -symmetric Ti (IV) amino triphenolate complexes efficiently catalyze, without previous activation and in excellent yields, the oxidation of sulfides at room temperature, using both CHP and the more environment friendly aqueous hydrogen peroxide as terminal oxidants, with catalyst loadings down to 0.01%. The Ti(IV) catalysts and the intermediate Ti(IV)-peroxo complexes have been characterized in solution by 1H NMR and ESI-MS techniques and via density functional studies.

10.1039/c0dt00228chttp://hdl.handle.net/11311/655608