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Synthesis and chemistry of 2,2-disubstituted 1-alkenylphosphonic derivatives
Dissertation (MSc (Chemistry))--University of Pretoria, 1991.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2024
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| _version_ | 1867613704838709248 |
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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, 1991. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/99600 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:40:23.116Z |
| 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:2263/99600 Synthesis and chemistry of 2,2-disubstituted 1-alkenylphosphonic derivatives Modro, T.A. Belciug, Marie-Paula Synthesis Chemistry Disubstituted Alkenylphosphpnic UCTD Dissertation (MSc (Chemistry))--University of Pretoria, 1991. The reaction of 2-methyl-1-pentene with phosphorus pentachloride gave invariably a mixture of products which could not be isomerised to produce single compounds. Similarly, five compounds were obtained following the esterification reaction of the above-mentioned mixture. Base-catalysed phosphonate isomerisation of the mixtures of the alkenyl diesters, as well as attempted standard chromatographic methods, failed to give single compounds. Pureαβ- and β¥-unsaturated phosphonates have been obtained in high yields by independent, unambiguous routes. Prototropic equilibrium studies on the pure alkenyl phosphonates were carried out and hyperconjugation effects operating in such systems were discussed. A gas chromatographic study of the alkenylphosphonate mixtures and of the pure compounds gave chromatographic data previously unreported for compounds of this type. Chemistry MSc (Chemistry) 2024-11-27T09:16:25Z 2024-11-27T09:16:25Z 22/01/12 1991 Dissertation http://hdl.handle.net/2263/99600 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 Disubstituted Alkenylphosphpnic UCTD Synthesis and chemistry of 2,2-disubstituted 1-alkenylphosphonic derivatives |
| title | Synthesis and chemistry of 2,2-disubstituted 1-alkenylphosphonic derivatives |
| title_full | Synthesis and chemistry of 2,2-disubstituted 1-alkenylphosphonic derivatives |
| title_fullStr | Synthesis and chemistry of 2,2-disubstituted 1-alkenylphosphonic derivatives |
| title_full_unstemmed | Synthesis and chemistry of 2,2-disubstituted 1-alkenylphosphonic derivatives |
| title_short | Synthesis and chemistry of 2,2-disubstituted 1-alkenylphosphonic derivatives |
| title_sort | synthesis and chemistry of 2 2 disubstituted 1 alkenylphosphonic derivatives |
| topic | Synthesis Chemistry Disubstituted Alkenylphosphpnic UCTD |
| url | http://hdl.handle.net/2263/99600 |