Air Oxidation of Benzene to Biphenyl - A Dual Catalytic Approach

Mukhopadhyay, Sourav; Rothenberg, Gadi; Lando, Gilad; Agbaria, Kasim; Kazanci, Murat; Sasson, Yoel

doi:10.1002/1615-4169(200107)343:5<455::aid-adsc455>3.0.co;2-o

Cited by 62 publications

(27 citation statements)

References 11 publications

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“…The dimerization process can only proceeds by the oxidative coupling to give the biphenyl system [23]. However, this reaction requires a catalyst to promote the coupling unless the phenyl ring is reasonably electron rich (steps 4, 5 and 6 in Scheme-II) [24].…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Novel Pyridyl-Based Schiff Base and Its Coordination Behaviour with Ruthenium(II) and Zinc(II)

Al-Rashdi¹,

Eltayeb²,

Al-Khathami³

et al. 2017

Asian J. Chem.

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High reactivity of the Schiff base product of p-toluidine with pyridine-2-carboxaldehyde was observed, leading to methyl group isomerization (immigration) to ortho-position followed by the dimerization reaction to form biphenyl system. This compound was identified and characterized using IR, ESI MS and NMR spectroscopic methods and its structure confirmed by XRD single crystal. The coordination behaviour of the Schiff base was examined using ruthenium(II) and zinc(II). Two metal complexes were only isolated and identified by Xray crystallography for ruthenium(II) and zinc(II). The coordination behaviour of both metals differs significantly, although both of them promote the oxidation reaction on one of the azomethine bond.

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Section: Resultsmentioning

confidence: 99%

Synthesis of Novel Pyridyl-Based Schiff Base and Its Coordination Behaviour with Ruthenium(II) and Zinc(II)

Al-Rashdi¹,

Eltayeb²,

Al-Khathami³

et al. 2017

Asian J. Chem.

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“…Control experiments confirmed that <3 % conversion was obtained without any catalyst, and <5 % conversion was obtained in the presence of equivalent amounts of either C undoped or a commercially available activated carbon (C comm ) with a similar surface area (1500 m 2 g −1 ). Even when impregnated with Cu or Co, either of which could be expected to activate oxygen, these carbons gave much lower conversions compared with N:C.…”

Section: Catalytic Oxidation Of Cinnamyl Alcohol With Molecular Oxygementioning

confidence: 99%

Cooperative Catalysis for Selective Alcohol Oxidation with Molecular Oxygen

Slot

Eisenberg

Noordenne

et al. 2016

Chemistry A European J

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The activation of dioxygen for selective oxidation of organic molecules is a major catalytic challenge. Inspired by the activity of nitrogen-doped carbons in electrocatalytic oxygen reduction, we combined such a carbon with metal-oxide catalysts to yield cooperative catalysts. These simple materials boost the catalytic oxidation of several alcohols, using molecular oxygen at atmospheric pressure and low temperature (80 °C). Cobalt and copper oxide demonstrate the highest activities. The high activity and selectivity of these catalysts arises from the cooperative action of their components, as proven by various control experiments and spectroscopic techniques. We propose that the reaction should not be viewed as occurring at an 'active site', but rather at an 'active doughnut'-the volume surrounding the base of a carbon-supported metal-oxide particle.

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“…[69] Aufbauend auf der intramolekularen Dimerisierung von Aromaten [70] entwickelten Lu und Mitarbeiter ein auf Pd(OAc) 2 basierendes Katalysatorsystem fürd ie kreuzdehydrierende Kupplung,w obei die genaue Menge an TFAe ntscheidend ist. [69] Aufbauend auf der intramolekularen Dimerisierung von Aromaten [70] entwickelten Lu und Mitarbeiter ein auf Pd(OAc) 2 basierendes Katalysatorsystem fürd ie kreuzdehydrierende Kupplung,w obei die genaue Menge an TFAe ntscheidend ist.…”

Section: Kreuzdehydrierende Kupplung (Ar-h + Ar'-h)unclassified