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Desulphurisation of unsymmetrical disulphides tervalent phosphorus nucleophiles.

Al-Shawi, Abdulla W (2021) Desulphurisation of unsymmetrical disulphides tervalent phosphorus nucleophiles. Doctor of Philosophy (PhD) thesis, University of Kent. (doi:10.22024/UniKent/01.02.86054) (KAR id:86054)

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Abstract

This thesis reports the study of the preparation of symmetrical and unsymmetrical dlsulphldes and their desulphurlsatlon with tervalent phosphorus compounds. The reaction products, klnetlcs, mechanlsm have been Investigated. The Introduction (Chapter one) contains the background to this project with brief reviews on nucleophilic attack by P(III) compounds on a variety of nucleophilic centres and functional groups. These Include saturated carbon, unsaturated carbon, carbonyl carbon, saturated oxygen, nltrogen, halogen and sulphur (II). Chapter two Is divided Into six sections. The first gives a brief review on the purpose and objective of the this thesis. Section two Investigates the best analytical technique employed to monitor reaction mechanlsm, klnetlcs and reaction products. Section three Illustrates the problems associated with the preparation of unsymmetrical dlsulphldes while section four details the products obtained from the desulphurlsatlon reaction In various media. Section five and six report a comparison In desulphurlsatlon kinetics between cyclic and acyclic amlnophosphlne reagents. Chapter three discusses In details three physical methods monitoring reaction pathway(CIDNP) ,reaction mechanism and klnetlcs(HPLC) ,and reaction products In various solvent systems(MC-LC). Chapter four has full experimental procedures. Chapter five lists the references.

Item Type: Thesis (Doctor of Philosophy (PhD))
DOI/Identification number: 10.22024/UniKent/01.02.86054
Additional information: This thesis has been digitised by EThOS, the British Library digitisation service, for purposes of preservation and dissemination. It was uploaded to KAR on 09 February 2021 in order to hold its content and record within University of Kent systems. It is available Open Access using a Creative Commons Attribution, Non-commercial, No Derivatives (https://creativecommons.org/licenses/by-nc-nd/4.0/) licence so that the thesis and its author, can benefit from opportunities for increased readership and citation. This was done in line with University of Kent policies (https://www.kent.ac.uk/is/strategy/docs/Kent%20Open%20Access%20policy.pdf). If you feel that your rights are compromised by open access to this thesis, or if you would like more information about its availability, please contact us at ResearchSupport@kent.ac.uk and we will seriously consider your claim under the terms of our Take-Down Policy (https://www.kent.ac.uk/is/regulations/library/kar-take-down-policy.html).
Uncontrolled keywords: Chemistry
Subjects: Q Science > QD Chemistry
Divisions: Divisions > Division of Natural Sciences > Chemistry and Forensics
SWORD Depositor: SWORD Copy
Depositing User: SWORD Copy
Date Deposited: 29 Oct 2019 16:26 UTC
Last Modified: 07 Dec 2021 11:06 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/86054 (The current URI for this page, for reference purposes)
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