IRON AND MANGANESE COMPLEXES COMPRISING HEXADENTATE MONOCARBOXYLATO-CONTAINING LIGANDS AND THEIR USE FOR THE CATALYSIS OF OXIDATION REACTIONS
申请人:University of Southern Denmark
公开号:US20140350256A1
公开(公告)日:2014-11-27
The present invention relates to iron and manganese complexes based on hexadentate ligand systems containing one carboxylato donor and five nitrogen donor atoms and to their use in methods for the catalysis of the oxidation of organic substrates. The manganese complexes of the invention also may be used as (pro)-catalysts in methods for the catalysis of water.
Iron Coordination Chemistry of N
<sub>2</sub>
Py
<sub>2</sub>
Ligands Substituted by Carboxylic Moieties and Their Impact on Alkene Oxidation Catalysis
dioxygenase mimics has been undertaken, which uses the tetradentate N2Py2ligand platform that contains two pyridine moieties linked to a 1,2-diaminoethane or a trans-1,2-diaminocyclohexane backbone. Here we report the impact of the incorporation of carboxylic functionalities with the N2Py2ligand on the catalytic efficiency of its FeII complexes during epoxidation with H2O2 as the oxidant. Five complexes
Switching on oxygen activation by cobalt complexes of pentadentate ligands
作者:Mads S. Vad、Anne Nielsen、Anders Lennartson、Andrew D. Bond、John E. McGrady、Christine J. McKenzie
DOI:10.1039/c1dt10594a
日期:——
The monoanionic N4O ligand N-methyl-N,N′-bis(2-pyridylmethyl)ethylenediamine-N′-acetate (mebpena−) undergoes oxidative C–N bondcleavage in the presence of Co(II) and O2. The two resultant fragments are coordinated to the metal ion in the product [CoIII(2-pyridylformate)(mepena)]ClO4 (mepena− = N-methyl-N′-(2-pyridylmethyl)ethylenediamine-N′-acetato). Bondcleavage does not occur in the presence of chloride