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Synthesis and chemistry of photosphonic derivatives
Dissertation (MSc (Chemistry))--University of Pretoria, 1994.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2024
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| _version_ | 1867613666484944896 |
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| access_status_str | Open Access |
| author2 | Modro, T.A. |
| author_browse | Modro, T.A. |
| author_facet | Modro, T.A. |
| collection | Thesis |
| dc_rights_str_mv | © 2024 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc (Chemistry))--University of Pretoria, 1994. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/99462 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:39:46.144Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/99462 Synthesis and chemistry of photosphonic derivatives Modro, T.A. Pienaar, Andre Synthesis Chemistry Photosphonic derivatives UCTD Dissertation (MSc (Chemistry))--University of Pretoria, 1994. A reliable method for the preparation of alkylphosphonyl chlorides had to be obtained to prepare precursors for the synthesis of a range of alkylphosphonates which were needed for kinetic studies. Both thionyl chloride and oxalyl chloride were studied as chlorinating agents for phosphonic esters. The use of thionyl chloride together with a catalytic amount of DMF were shown to be of general application in the efficient preparation of phosphonic mono-ester chlorides. A wide range of esters of the formula R2NCH2CH2OPO(R')R", R, R' = CH3, CH2CH3 and R" = OCH3 , OCH2CH3, OCH(CH3) 2 and Cl were synthesized. These compounds were used as substrates to study the kinetics of their unimolecular decomposition. From the relative kinetic data we were able to show that two mechanisms of decomposition were followed depending I on the nature of the leaving group present in the substrate molecule Chemistry MSc (Chemistry) 2024-11-27T09:15:55Z 2024-11-27T09:15:55Z 22/02/04 1994 Dissertation http://hdl.handle.net/2263/99462 en © 2024 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Synthesis Chemistry Photosphonic derivatives UCTD Synthesis and chemistry of photosphonic derivatives |
| title | Synthesis and chemistry of photosphonic derivatives |
| title_full | Synthesis and chemistry of photosphonic derivatives |
| title_fullStr | Synthesis and chemistry of photosphonic derivatives |
| title_full_unstemmed | Synthesis and chemistry of photosphonic derivatives |
| title_short | Synthesis and chemistry of photosphonic derivatives |
| title_sort | synthesis and chemistry of photosphonic derivatives |
| topic | Synthesis Chemistry Photosphonic derivatives UCTD |
| url | http://hdl.handle.net/2263/99462 |