Journal ArticleDOI
The oxidation of 2,6-xylenol catalysed by polymer supported copper complexes
P.C. Selvaraj,V. Mahadevan +1 more
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TLDR
In this article, the synthesis and characterisation of copolymers containing tertiary nitrogen to which Cu(I) or Cu(II) species are anchored is described, and the anchored species function as catalysts for the oxidation of 2,6-xylenol by O 2 under basic conditions.About:
This article is published in Polymer.The article was published on 1998-01-01. It has received 7 citations till now. The article focuses on the topics: 2,6-Xylenol & Catalyst support.read more
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Journal ArticleDOI
Aerobic Copper-Catalyzed Organic Reactions
TL;DR: The chemistry of copper is extremely rich because it can easily access Cu0, CuI, CuII, and CuIII oxidation states allowing it to act through one-electron or two-Electron processes, which feature confer a remarkably broad range of activities allowing copper to catalyze the oxidation and oxidative union of many substrates.
Journal ArticleDOI
Selective Oxidation of Phenols to Hydroxybenzaldehydes and Benzoquinones with Dioxygen Catalyzed by Polymer-Supported Copper
TL;DR: In this paper, the molar ratio of the bipyridine unit of the polymer ligand to Cu was unity, i.e., N/Cu = 2, and the best results were obtained.
Journal ArticleDOI
Preparation of chitosan‐bound nitrobenzaldehyde metal complexes and studies on its catalytic oxidative activity and reactive mechanism
TL;DR: In this article, two chitosan-bound nitrobenzaldehyde metal complexes (m-CNBDM and o-NBMn) were characterized by infrared, X-ray photoelectron spectroscopy, solid-state 13C-NMR cross-polarity/magic-angle spinning, inductively coupled plasma, and elemental analysis.
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Catalysis by heterogenized metal polymers: Advances and prospects
TL;DR: In this paper, the effect of various factors on the catalysis of the main reactions used in organic synthesis (hydrogenation, polymerization, and redox processes) are analyzed.
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Oxidation of 2,6-di- tert -butylphenols to Diphenoquinones Catalysed by Schiff Base-Cu(II) Systems Immobilized on Polymer Support
TL;DR: In this paper, the catalytic activity of Cu(II) complexes with Schiff base immobilized on the synthesized supports were tested in the oxidation reaction of 2,6-di-tert-butylphenol (DTBP) to diphenoquinone (PQ) with tertbutylhydroperoxide.
References
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Journal ArticleDOI
The role of oxygen in the oxidative polymerization of 2.6‐xylenol catalyzed by copper‐amine complexes
TL;DR: The role of oxygen in the oxidative polymerization of 2.6-xylenol by copper-amine complexes was studied in this paper, where it was concluded that oxygen promotes the electron transfer from the coordinated monomer to the metal ion or the dissociation reaction of the activated monomer, probably by forming a complex with the intermediate.
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Oxidative Coupling of Phenols Catalyzed by Copper Chloride Coordinated to Aminated Polystyrene : A Possible Model Reaction for Dioxygen Reduction by Laccase and Tyrosinase
TL;DR: In this article, the role of free CuCl 2, previously shown to be essential for catalytic activity, can be taken over by ZnCl 2 and the influence of the dioxygen pressure on the reaction has been investigated.
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A mechanistic study on the oxidation of 2,6-dimethyl-phenol by DMAP- and polystyrene-bound DMAP-based copper catalysts
TL;DR: In this article, a possible mechanism for the oxidation of 2,6-dimethylphenol by soluble-and polystyrene-bound Cu(II)-DMAP catalysts is described.
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Catalytic activity of copper(II)complexes of immobilized ‘polystyrene-bound 4-(N,N-dimethylamino)pyridine’ for the oxidative coupling of 2,6-disubstituted phenols
TL;DR: In this article, three types of immobilized polystyrene-bound 4-(N, N -dimethylamino)pyridine-copper (PS-DMAP-Cu( ii )) catalysts for the oxidation of 2,6-disubstituted phenols were evaluated in a continuous stirred tank (CST) reactor.