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Dimethyl N-Aryl phosphoramidates : structural effects on bonding and solvolytic reactivity
Bibliography: p. 84-86.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Chemistry
2015
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| _version_ | 1867613332070989824 |
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| access_status_str | Open Access |
| author | Rijkmans, Bloys Peter |
| author2 | Modro, Tom A |
| author_browse | Modro, Tom A Rijkmans, Bloys Peter |
| author_facet | Modro, Tom A Rijkmans, Bloys Peter |
| author_sort | Rijkmans, Bloys Peter |
| collection | Thesis |
| description | Bibliography: p. 84-86. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/13518 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:34:27.383Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Department of Chemistry |
| publisherStr | Department of Chemistry |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/13518 Dimethyl N-Aryl phosphoramidates : structural effects on bonding and solvolytic reactivity Rijkmans, Bloys Peter Modro, Tom A Organic Chemistry Bibliography: p. 84-86. The acid catalysed hydrolysis of a number of ring alkyl substituted dimethyl N-aryl phosphoramidates, (MeO)2P(0)NHAr, has been studied by measuring the rates of hyd~olysis with the aid of a UV spectrophotometer. These rates have been correlated with the pKa values of the corresponding ani I inium iOhs and the slope of this reactivitybasicity relationship for phosphoramidate with ortho substituents (6 = 0~85) is found to differ from that for substrates with meta and para substituents (S = 0,36). Determination of the thermodynamic parameters indicates that the entropy of activation is approximately constant for the substrates studied and the strongly negative values ~ -I -I (~S = 155,4 - 17,5 J mole K ) are consistent with an A2 type mechanism. 2015-07-14T09:02:35Z 2015-07-14T09:02:35Z 1981 Master Thesis Masters MSc http://hdl.handle.net/11427/13518 eng application/pdf Department of Chemistry Faculty of Science University of Cape Town |
| spellingShingle | Organic Chemistry Rijkmans, Bloys Peter Dimethyl N-Aryl phosphoramidates : structural effects on bonding and solvolytic reactivity |
| thesis_degree_str | Master's |
| title | Dimethyl N-Aryl phosphoramidates : structural effects on bonding and solvolytic reactivity |
| title_full | Dimethyl N-Aryl phosphoramidates : structural effects on bonding and solvolytic reactivity |
| title_fullStr | Dimethyl N-Aryl phosphoramidates : structural effects on bonding and solvolytic reactivity |
| title_full_unstemmed | Dimethyl N-Aryl phosphoramidates : structural effects on bonding and solvolytic reactivity |
| title_short | Dimethyl N-Aryl phosphoramidates : structural effects on bonding and solvolytic reactivity |
| title_sort | dimethyl n aryl phosphoramidates structural effects on bonding and solvolytic reactivity |
| topic | Organic Chemistry |
| url | http://hdl.handle.net/11427/13518 |
| work_keys_str_mv | AT rijkmansbloyspeter dimethylnarylphosphoramidatesstructuraleffectsonbondingandsolvolyticreactivity |