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Versatile multi-faceted bimetallic catalysts for Benzylic C-H oxidation.

Versatile multi-faceted bimetallic catalysts for Benzylic C-H oxidation.
Versatile multi-faceted bimetallic catalysts for Benzylic C-H oxidation.
In this thesis, the development of a new methodology for the C–H oxidation of a variety of organic substrates using a bimetallic vanadium-titanium molecular sieve, VTi AlPO-5, is presented. Preliminary studies using model substrate propylbenzene were conducted to elucidate trends in catalytic activity by varying a wide array of reaction and catalyst parameters. Following that is a series of studies documenting the uses of VTi AlPO-5 in the oxidation of other substrates, in which different types of reactivity were probed. The catalyst is highly active and capable of redox- as well as acid catalysis due to the inclusion of its vanadium and titanium centres, the combination of which has been found to be capable of effecting two-step syntheses in the same pot, or enhancing selectivity to very high levels in several reactions. The physicochemical nature of the material as well as spectroscopic investigation of the V and Ti centres in the catalyst has been investigated using a variety of techniques. This data, combined with the catalytic data obtained during reactions, led to the proposal of structures for the metal ions and a preliminary reaction mechanism.
University of Southampton
Ran, Thomas, Nicolaas
eabe4d9d-59c2-4572-a47d-7476b8540799
Ran, Thomas, Nicolaas
eabe4d9d-59c2-4572-a47d-7476b8540799
Harrowven, David
bddcfab6-dbde-49df-aec2-42abbcf5d10b

Ran, Thomas, Nicolaas (2017) Versatile multi-faceted bimetallic catalysts for Benzylic C-H oxidation. University of Southampton, Doctoral Thesis, 295pp.

Record type: Thesis (Doctoral)

Abstract

In this thesis, the development of a new methodology for the C–H oxidation of a variety of organic substrates using a bimetallic vanadium-titanium molecular sieve, VTi AlPO-5, is presented. Preliminary studies using model substrate propylbenzene were conducted to elucidate trends in catalytic activity by varying a wide array of reaction and catalyst parameters. Following that is a series of studies documenting the uses of VTi AlPO-5 in the oxidation of other substrates, in which different types of reactivity were probed. The catalyst is highly active and capable of redox- as well as acid catalysis due to the inclusion of its vanadium and titanium centres, the combination of which has been found to be capable of effecting two-step syntheses in the same pot, or enhancing selectivity to very high levels in several reactions. The physicochemical nature of the material as well as spectroscopic investigation of the V and Ti centres in the catalyst has been investigated using a variety of techniques. This data, combined with the catalytic data obtained during reactions, led to the proposal of structures for the metal ions and a preliminary reaction mechanism.

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Thomas Ran thesis final - Version of Record
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Published date: February 2017
Organisations: University of Southampton, Chemistry

Identifiers

Local EPrints ID: 410304
URI: http://eprints.soton.ac.uk/id/eprint/410304
PURE UUID: 34366d54-5f2b-4328-912a-617cfbe3b272
ORCID for David Harrowven: ORCID iD orcid.org/0000-0001-6730-3573

Catalogue record

Date deposited: 07 Jun 2017 04:01
Last modified: 23 Feb 2020 05:01

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