Synthesis, Characterization, and Catalytic Performance in Oxidation of Styrene and α‐Methyl Styrene of a Nickel(II) Complex Derived from a Schiff Base Ligand

Abstract

A tetrahedrally-distorted square-planar nickel(II) complex of tetradentate Schiff base ligand derived from 2-hydroxypropiophenone and 2,2'-dimethylpropandiamine [bis(2-hydroxypropiophenone)2,2'-dimethylpropylenediimine] (H 2 L) was prepared and used as catalyst for oxidation of styrene and α-methyl styrene with tert-butylhydroperoxide (TBHP).

High catalytic activity of magnetic Fe3O4@SiO2-Schiff base-Co(II) nanocatalyst for aerobic oxidation of alkenes and alcohols and DFT study

“…On this basis, the use of molecular oxygen which is accepted as a green, inexpensive, high atom-efficient, and readily available oxidant is extremely considered [4]. It [21,22] complexes are useful catalysts for oxidation reactions because of the similarity of their structure to that of the porphyrin ring, high ability to load oxygen and mimicking enzymes [23]. Among these catalysts, various homogeneous and heterogeneous cobalt compounds have attracted great attention for the oxidizing of olefins [24,25] and alcohols [26,27] not only because of their low cost and eco-friendly nature but also for their selective performance.…”

Phosphorus‐based Schiff bases and their complexes as nontoxic antioxidants: Structure–activity relationship and mechanism of action

“…Because of their highly efficient catalytic activity, Schiff bases have been extensively studied, [9][10][11][12][13][14][15] with catalytic degradation of Schiff base complexes gaining popularity in recent years. Because of their highly efficient catalytic activity, Schiff bases have been extensively studied, [9][10][11][12][13][14][15] with catalytic degradation of Schiff base complexes gaining popularity in recent years.…”

“…Schiff bases (also called imine) are organic compounds with a carbon-nitrogen double bond (-N=C-). Because of their highly efficient catalytic activity, Schiff bases have been extensively studied, [9][10][11][12][13][14][15] with catalytic degradation of Schiff base complexes gaining popularity in recent years. [16] In general, the catalytic center of metal ions plays a very significant role in electron transfer.…”

Copper(II) Schiff Base Complex Immobilized on Superparamagnetic Fe3O4@SiO2 as a Magnetically Separable Nanocatalyst for Oxidation of Alkenes and Alcohols

“…Among the oxidation catalysts, Schiff base transition metal complexes represent a very useful class of compounds because their structures are similar to that of the porphyrin ring and they are good at loading oxygen and mimicking enzymes . Therefore, homogeneous or heterogeneous catalytic activities of various Schiff base transition metal complexes such as Cu(II), Co(II), V(V), Mo(VI), Mn(II) and Ni(II) complexes in the oxidation of organic substrates have been extensively investigated. Although homogeneous catalysts often show high catalytic performances, they are associated with some drawbacks including difficulty of separation from products, deactivation of catalyst via dimerization and instability at high temperatures.…”