Aromatic hydroxylation in a new tyrosinase model system and formation of a novel bis(µ-hydroxo)dicopper(II) complex due to an unprecedented ligand coupling reaction
摘要:
A new binucleating nitrogen-donor ligand exhibits tyrosinase-like activity by bringing about aromatic hydroxylation mediated by copper; the phenoxy- and hydroxy-bridged coppper(II) complex 1 and a novel dihydroxy-bridged copper(II) complex 2 are structurally characterized.
Modeling Tyrosinase Monooxygenase Activity. Spectroscopic and Magnetic Investigations of Products Due to Reactions between Copper(I) Complexes of Xylyl-Based Dinucleating Ligands and Dioxygen: Aromatic Ring Hydroxylation and Irreversible Oxidation Products
作者:Debalina Ghosh、Rabindranath Mukherjee
DOI:10.1021/ic9713689
日期:1998.12.1
tyrosinase is presented. Using dinucleating ligands with a m-xylyl spacer three new dicopper(I) complexeshave been synthesized and their reactivity with dioxygen investigated. The six-membered chelate ring forming ligands provide only two nitrogen coordinations to each copper. The complexes [Cu(I)(2)L(CH(3)CN)(2)]X(2) (X = ClO(4)(-) (1a), SbF(6)(-) (1b)) and [Cu(I)(2)(L-NO(2))(CH(3)CN)(2)][SbF(6)](2) (1c)
Aromatic hydroxylation in a new tyrosinase model system and formation of a novel bis(µ-hydroxo)dicopper(<scp>II</scp>) complex due to an unprecedented ligand coupling reaction
作者:Debalina Ghosh、Tapan K. Lal、Sangita Ghosh、Rabindranath Mukherjee
DOI:10.1039/cc9960000013
日期:——
A new binucleating nitrogen-donor ligand exhibits tyrosinase-like activity by bringing about aromatic hydroxylation mediated by copper; the phenoxy- and hydroxy-bridged coppper(II) complex 1 and a novel dihydroxy-bridged copper(II) complex 2 are structurally characterized.