Immobilization of a homogeneous macromolecular copper catalyst for the oxidative coupling of phenols

Verlaan, J.P.J.; Bootsma, J.P.C.; Challa, G.

doi:10.1016/0304-5102(82)80038-2

Cited by 43 publications

(11 citation statements)

References 8 publications

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“…Indeed, the corresponding author and the Festschrift celebrant pioneered the aerosol method. On the one hand, coating of polymers on a solid inorganic surface is a subject of great interest in, e.g., biomolecule immobilization [19][20][21], colloid stabilization [22], adhesion in composite materials [23,24] and catalysis [25]. On the other hand, these particles are among the most widely used stationary phases in chromatography.…”

Section: Introductionmentioning

confidence: 99%

Graft polymerization of styrene initiated by covalently bonded peroxide groups on silica

Bachmann

Wang²,

Albert

et al. 2007

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Graft polymerization of styrene initiated by covalently bonded peroxide groups on silica

Bachmann

Wang²,

Albert

et al. 2007

Journal of Colloid and Interface Science

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“…to separate and recover these, while viable in some specialised applications, in general is not an attractive way forward. Challa has pioneered the view [161] that immobilisation of reactive species on linear polymers, followed in tum by attachment of the linear polymers to some macroscopic (porous) support represents the best opportunity for achieving high activity in catalysts, while allowing technological exploitation (see Figure 6.31). This is a very logical argument, but if this is to be so, all the materials involved must be of low cost, because the assembly process itself for such complex systems is bound to add-on considerable costs.…”

Section: Novel Formats For Polymer Supportsmentioning

confidence: 99%

Polymer-supported synthesis

Sherrington¹

1995

Chemistry of Waste Minimization

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“…It should be noted that the composition of the product of oxidative coupling of 2,6-disubstituted phenols depends on the type of substrate [131]. For instance, the conditions which favor C -0 coupling for 2,6-dimethylphenol (DMP), yield C -C coupling for 2,6-diphenylphenol (DPP) and 2,6-di-tert-butylphenol (DTBP).…”

Section: Oxidation Of Disubstituted 26-phenolsmentioning

confidence: 99%

Catalytic Properties of Polymers in Solutions

Bekturov¹,

Kudaibergenov²

1997

Catalysis by Polymers

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Polymers are increasingly being used as active components in synthesis and catalysis [I -121. Three basic directions of polymer application are cited as follows:( 1 ) use of polymers as reagents; (2) application of functional groups of polymers as catalysts; and (3) use of polymers as supports. Catalysis by functional groups of macromolecules has attracted scientists' attention owing to the rapid development of enzyme catalysis. High catalytic activity of enzymes is attributed to the broad variety of their particular functional groups which enables their involvement in multiple interactions. The main limitation for using polymers in enzyme catalysis is their lack of a diverse functional group. Consequently, complex enzyme functions cannot yet be realized by synthetic analogues. Nevertheless, the molecular nature of proteins has prompted many scientists to focus on catalytic systems based on synthetic polymers as simple model proteins, metalloenzymes and ferments.This chapter presents various examples of enzyme catalysis by polymers including ester hydrolysis, decomposition of hydrogen peroxide, oxidation of disubstituted phenols and hydroquinone, interfacial catalysis and other types of reaction. Because metal ions (Fe, Zn, Cu. Mn, Co, erc.) are often involved as coferments during enzyme catalysis, some examples illustrating their catalytic action are also given. The catalytic activity of polymeric coordination compounds is shown to depend on the strength of the ligand-metal bond.

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Immobilization of a homogeneous macromolecular copper catalyst for the oxidative coupling of phenols

Cited by 43 publications

References 8 publications

Graft polymerization of styrene initiated by covalently bonded peroxide groups on silica

Graft polymerization of styrene initiated by covalently bonded peroxide groups on silica

Polymer-supported synthesis

Catalytic Properties of Polymers in Solutions

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