Site Isolation and Epoxidation Reactivity of a Templated Ferrous Bis(phenanthroline) Site in Porous Silica

Terry, Tracy J.; Dubois, Géraud; Murphy, Andrew; Stack, T. Daniel P.

doi:10.1002/ange.200603423

Cited by 10 publications

(5 citation statements)

References 21 publications

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“…In order to show its high activity, different solvents, which are fairly significant for the reaction selectivity, were applied in the oxidation of styrene. Consistent with most of the literature demonstrated previously, acetonitrile is the most suitable solvent affording the highest yield of benzaldehyde [39,40,41,42]. The reaction temperature and oxygen pressure are both important factors.…”

Section: Pt Nanocomplexes and Catalytic Applications In Organic Resupporting

confidence: 79%

Novel Metal Nanomaterials and Their Catalytic Applications

Wang

2015

Molecules

103

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Abstract:In the rapidly developing areas of nanotechnology, nano-scale materials as heterogeneous catalysts in the synthesis of organic molecules have gotten more and more attention. In this review, we will summarize the synthesis of several new types of noble metal nanostructures (FePt@Cu nanowires, Pt@Fe2O3 nanowires and bimetallic Pt@Ir nanocomplexes; Pt-Au heterostructures, Au-Pt bimetallic nanocomplexes and Pt/Pd bimetallic nanodendrites; Au nanowires, CuO@Ag nanowires and a series of Pd nanocatalysts) and their new catalytic applications in our group, to establish heterogeneous catalytic system in "green" environments. Further study shows that these materials have a higher catalytic activity and selectivity than previously reported nanocrystal catalysts in organic reactions, or show a superior electro-catalytic activity for the oxidation of methanol. The whole process might have a great impact to resolve the energy crisis and the environmental crisis that were caused by traditional chemical engineering. Furthermore, we hope that this article will provide a reference point for the noble metal nanomaterials' development that leads to new opportunities in nanocatalysis.

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Section: Pt Nanocomplexes and Catalytic Applications In Organic Resupporting

confidence: 79%

Novel Metal Nanomaterials and Their Catalytic Applications

Wang

2015

Molecules

103

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“…Surface-functionalized mesoporous materials have found widespread applications in technologically important areas such as catalysis, − separation, , decontamination, drug delivery, and sensor design . In particular, the development of mesoporous material-based biocatalysts and biosensors has attracted much attention because of their high specific surface areas (up to 2000 m 2 /g) and pore volumes (up to 1.5 cm 3 /g), which render them ideal hosts for biomolecules.…”

Section: Introductionmentioning

confidence: 99%

Functionalization of SBA-15 Mesoporous Materials using “Thiol–Ene Click” Michael Addition Reaction

et al. 2011

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Methacrylate-labeled SBA-15 has been successfully synthesized from calcined SBA-15 and commercially available 3-trichlorosilyl propylmethacrylate. This material undergoes efficient thiol–ene “click reaction” with a variety of both thiol and disulfide-containing substrates in aqueous and organic media. The products were thoroughly characterized by a variety of analytical techniques including multinuclear (13C, 29Si) solid-state NMR, TG-DTA, and nitrogen adsorption desorption studies. Disulfide-containing substrates in which the TCEP-mediated reduction of the disulfide bond and its subsequent addition to the methacrylate group anchored in SBA-15 in one-pot were used to synthesize a silica–protein hybrid material composed of biotin-labeled SBA-15 and streptavidin. Electrochemically active material was synthesized from the reaction of ferrocene-containing thiol and the methacrylate-labeled SBA-15. The ease of synthesis for the methacrylate-labeled SBA-15 material together with its ability to undergo efficient chemoselective thiol–ene reaction would make it a very attractive platform for the development of covalently anchored enzymes and sensors.

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“…The solvent, which is very important for reaction selectivity, was first optimised. Acetonitrile is commonly used as the solvent in alkene oxidation reactions [16] and provided the highest yield of benzaldehyde (31.3 %; Table 1, entry 2), which is higher than those reported with Fe 2 O 3 [6] or a gold catalyst. [17,11b] When toluene was used as the solvent in this reaction, a yield of benzaldehyde of 20.1 % was obtained, but with a higher selectivity (90 %; Table 1, entry 6).…”

Section: Resultsmentioning

confidence: 97%

Preparation of Pt@Fe₂O₃ Nanowires and their Catalysis of Selective Oxidation of Olefins and Alcohols

Hong

et al. 2011

Chemistry A European J

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Iron oxide coated platinum nanowires (Pt@Fe(2)O(3)NWs) with a diameter of 2.8 nm have been prepared by the oxygen oxidation of FePt NWs in oleylamine. These "cable"-like NWs were characterised by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and X-ray absorption fine structure analysis. These Pt@Fe(2)O(3) NWs were used as "non-support" heterogeneous catalysts in oxidation of olefins and alcohols. The results revealed that it is an active and highly selective catalyst. Styrene derivatives were tested with molecular oxygen as the sole oxidant, with benzaldehyde successfully obtained from styrene in an absolute yield of 31%, whereas the use of tert-butyl hydroperoxide as the sole oxidant in the oxidation of alcohols led to yields of more than 80% of the corresponding ketone or aldehyde. This unsupported catalyst was found to be more active (TOF=96.5 h(-1)) than other reported Fe(2)O(3) nanoparticle catalysts and could be recycled multiple times without any notable decrease in activity. Our findings will extend the use of such nanomaterial catalysts to new catalytic systems.

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Site Isolation and Epoxidation Reactivity of a Templated Ferrous Bis(phenanthroline) Site in Porous Silica

Cited by 10 publications

References 21 publications

Novel Metal Nanomaterials and Their Catalytic Applications

Novel Metal Nanomaterials and Their Catalytic Applications

Functionalization of SBA-15 Mesoporous Materials using “Thiol–Ene Click” Michael Addition Reaction

Preparation of Pt@Fe₂O₃ Nanowires and their Catalysis of Selective Oxidation of Olefins and Alcohols

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Site Isolation and Epoxidation Reactivity of a Templated Ferrous Bis(phenanthroline) Site in Porous Silica

Cited by 10 publications

References 21 publications

Novel Metal Nanomaterials and Their Catalytic Applications

Novel Metal Nanomaterials and Their Catalytic Applications

Functionalization of SBA-15 Mesoporous Materials using “Thiol–Ene Click” Michael Addition Reaction

Preparation of Pt@Fe2O3 Nanowires and their Catalysis of Selective Oxidation of Olefins and Alcohols

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Preparation of Pt@Fe₂O₃ Nanowires and their Catalysis of Selective Oxidation of Olefins and Alcohols