Activate: 1998 - August
- Date: 1998-08
- Subjects: Grahamstown -- Newspapers , Journalism, Students -- South Africa , Rhodes University -- Activate , Rhodes University -- Students , Student newspapers and periodicals -- South Africa
- Language: English
- Type: Text
- Identifier: vital:14344 , http://hdl.handle.net/10962/d1019216
- Description: Activate is the Independent Student Newspaper of Rhodes University. Located in Grahamstown, Activate was established in 1947 as Rhodeo, and during apartheid became an active part of the struggle for freedom of expression as part of the now defunct South African Student Press Union. Currently Activate is committed to informing Rhodes University students, staff and community members about relevant issues, mainly on campus. These issues range from hard news to more creative journalism. While Activate acts as a news source, one of its main objectives it to be accessible as a training ground for student journalists. The newspaper is run entirely by the students and is published twice a term. Activate is a free newspaper which receives an annual grant from the Rhodes University Student Representative Council, however, majority of its revenue is generated through advertising.
- Full Text:
- Date Issued: 1998-08
- Date: 1998-08
- Subjects: Grahamstown -- Newspapers , Journalism, Students -- South Africa , Rhodes University -- Activate , Rhodes University -- Students , Student newspapers and periodicals -- South Africa
- Language: English
- Type: Text
- Identifier: vital:14344 , http://hdl.handle.net/10962/d1019216
- Description: Activate is the Independent Student Newspaper of Rhodes University. Located in Grahamstown, Activate was established in 1947 as Rhodeo, and during apartheid became an active part of the struggle for freedom of expression as part of the now defunct South African Student Press Union. Currently Activate is committed to informing Rhodes University students, staff and community members about relevant issues, mainly on campus. These issues range from hard news to more creative journalism. While Activate acts as a news source, one of its main objectives it to be accessible as a training ground for student journalists. The newspaper is run entirely by the students and is published twice a term. Activate is a free newspaper which receives an annual grant from the Rhodes University Student Representative Council, however, majority of its revenue is generated through advertising.
- Full Text:
- Date Issued: 1998-08
The Educational Journal
- Date: 1998-08
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/38159 , vital:34406 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1998-08
- Date: 1998-08
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/38159 , vital:34406 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1998-08
Rhodos, Vol. 10, No. 12
- Date: 1998-07-31
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14949 , http://hdl.handle.net/10962/d1019188
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-07-31
- Date: 1998-07-31
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14949 , http://hdl.handle.net/10962/d1019188
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-07-31
NUMSA Gender Workshop
- National Union of Metalworkers of South Africa, International Labour Resource and Information Group (ILRIG)
- Authors: National Union of Metalworkers of South Africa , International Labour Resource and Information Group (ILRIG)
- Date: 1998-07-20
- Subjects: Uncatalogued
- Language: eng
- Type: text , pamphlet
- Identifier: http://hdl.handle.net/10962/104624 , vital:32410
- Description: Objectives: To develop an understanding of the current state of the world economy and its impact on women for the participants. To deepen the understanding of the South African economy in the context of globalisation. To develop an understanding of labour legislation in South Africa in the context of globalisation. To highlight the strengths and weaknesses of labour legislation for the labour movement and women workers in particular. To show how legislation can be used to advance the gains won by the labour movement. To help build capacity of women within the union movement to deal with challenges of globalisation. , Facilitated by: International Labour Resource and Information Group (ILRIG)
- Full Text:
- Date Issued: 1998-07-20
- Authors: National Union of Metalworkers of South Africa , International Labour Resource and Information Group (ILRIG)
- Date: 1998-07-20
- Subjects: Uncatalogued
- Language: eng
- Type: text , pamphlet
- Identifier: http://hdl.handle.net/10962/104624 , vital:32410
- Description: Objectives: To develop an understanding of the current state of the world economy and its impact on women for the participants. To deepen the understanding of the South African economy in the context of globalisation. To develop an understanding of labour legislation in South Africa in the context of globalisation. To highlight the strengths and weaknesses of labour legislation for the labour movement and women workers in particular. To show how legislation can be used to advance the gains won by the labour movement. To help build capacity of women within the union movement to deal with challenges of globalisation. , Facilitated by: International Labour Resource and Information Group (ILRIG)
- Full Text:
- Date Issued: 1998-07-20
Rhodos, Vol. 10, No. 11
- Date: 1998-07-10
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14948 , http://hdl.handle.net/10962/d1019187
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-07-10
- Date: 1998-07-10
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14948 , http://hdl.handle.net/10962/d1019187
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-07-10
Rhodos, Vol. 10, No.10
- Date: 1998-06-26
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14947 , http://hdl.handle.net/10962/d1019186
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-06-26
- Date: 1998-06-26
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14947 , http://hdl.handle.net/10962/d1019186
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-06-26
Rhodos, Vol. 10, No. 9
- Date: 1998-06-12
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14946 , http://hdl.handle.net/10962/d1019185
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-06-12
- Date: 1998-06-12
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14946 , http://hdl.handle.net/10962/d1019185
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-06-12
No longer in their proper place : anthropology in search of its subject-matter : inaugural lecture delivered at Rhodes University
- Authors: de Wet, Christopher J
- Date: 1998-06-10
- Subjects: Anthropology -- Research , Anthropology -- Methodology , Participant observation -- Philosophy
- Language: English
- Type: Text
- Identifier: vital:617 , http://hdl.handle.net/10962/d1020686 , ISBN 0868103462
- Description: Inaugural lecture delivered at Rhodes University , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1998-06-10
- Authors: de Wet, Christopher J
- Date: 1998-06-10
- Subjects: Anthropology -- Research , Anthropology -- Methodology , Participant observation -- Philosophy
- Language: English
- Type: Text
- Identifier: vital:617 , http://hdl.handle.net/10962/d1020686 , ISBN 0868103462
- Description: Inaugural lecture delivered at Rhodes University , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1998-06-10
Resolutions Adopted by the Inaugural Central Committee Meeting - In Defence of our Jobs and for Job Creation
- Congress of South African Trade Unions (COSATU)
- Authors: Congress of South African Trade Unions (COSATU)
- Date: 1998-06
- Subjects: Uncatalogued
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/106321 , vital:32631
- Description: The 6th National Congress delegated to this Central Committee all socioeconomic resolutions. The powers of this Central Committee on socio-economic issues is therefore equal to those of the National Congress. This means it can change any socio-economic policy of the federation. Once policy is adopted by the Central Committee it can only be changed by the next National Congress in the year 2000. This document attempts to integrate the resolutions received from affiliates with the other policy positions of the federation as adopted at the previous policy conferences (1992 Economic Policy Conference, 1993 Health and Safety Conference, 1995 Health, Safety and Environment Conference, 1996 Living Wage Conference and May 1997 Policy Conference).
- Full Text:
- Date Issued: 1998-06
- Authors: Congress of South African Trade Unions (COSATU)
- Date: 1998-06
- Subjects: Uncatalogued
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/106321 , vital:32631
- Description: The 6th National Congress delegated to this Central Committee all socioeconomic resolutions. The powers of this Central Committee on socio-economic issues is therefore equal to those of the National Congress. This means it can change any socio-economic policy of the federation. Once policy is adopted by the Central Committee it can only be changed by the next National Congress in the year 2000. This document attempts to integrate the resolutions received from affiliates with the other policy positions of the federation as adopted at the previous policy conferences (1992 Economic Policy Conference, 1993 Health and Safety Conference, 1995 Health, Safety and Environment Conference, 1996 Living Wage Conference and May 1997 Policy Conference).
- Full Text:
- Date Issued: 1998-06
The Educational Journal
- Date: 1998-06
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/38179 , vital:34408 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1998-06
- Date: 1998-06
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/38179 , vital:34408 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1998-06
Rhodos, Vol. 10, No.8
- Date: 1998-05-29
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14945 , http://hdl.handle.net/10962/d1019184
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-05-29
- Date: 1998-05-29
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14945 , http://hdl.handle.net/10962/d1019184
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-05-29
Rhodos, Vol. 10, No. 7
- Date: 1998-05-15
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14944 , http://hdl.handle.net/10962/d1019183
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-05-15
- Date: 1998-05-15
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14944 , http://hdl.handle.net/10962/d1019183
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-05-15
A late Cretaceous (Maastrichtian) galaxiid fish from South Africa
- Anderson, M Eric, J.L.B. Smith Institute of Ichthyology
- Authors: Anderson, M Eric , J.L.B. Smith Institute of Ichthyology
- Date: 1998-05
- Subjects: Fishes -- Indian Ocean , Flatfishes -- Indian Ocean
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/71000 , vital:29769 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 60 , A new teleost fish, Stompooria rogersmithi, is described from deposits of a Late Cretaceous crater lake in the Karoo, South Africa. The fossils represent the earliest known species of the recently redefined family Galaxiidae. Distinguishing features include the apposition of the dorsal and anal fins, 41- 42 vertebrae, all neural arches anterior to the dorsal fin origin fused to the centra, presence of epineurals, the opercle reduced above the level of the hyomandibular articulation, the posttemporal and supracleithrum without a connection to the seismosensory head canals, 18 principal caudal fin rays, two epurals, five hypurals, no dorsal outgrowth on the uroneural, the neural spines of the second and third preural centra similar in size, and absence of a stegural, a third uroneural, a mesocoracoid, a supramaxilla, and teeth on the maxilla and palatine bones.
- Full Text:
- Date Issued: 1998-05
- Authors: Anderson, M Eric , J.L.B. Smith Institute of Ichthyology
- Date: 1998-05
- Subjects: Fishes -- Indian Ocean , Flatfishes -- Indian Ocean
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/71000 , vital:29769 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 60 , A new teleost fish, Stompooria rogersmithi, is described from deposits of a Late Cretaceous crater lake in the Karoo, South Africa. The fossils represent the earliest known species of the recently redefined family Galaxiidae. Distinguishing features include the apposition of the dorsal and anal fins, 41- 42 vertebrae, all neural arches anterior to the dorsal fin origin fused to the centra, presence of epineurals, the opercle reduced above the level of the hyomandibular articulation, the posttemporal and supracleithrum without a connection to the seismosensory head canals, 18 principal caudal fin rays, two epurals, five hypurals, no dorsal outgrowth on the uroneural, the neural spines of the second and third preural centra similar in size, and absence of a stegural, a third uroneural, a mesocoracoid, a supramaxilla, and teeth on the maxilla and palatine bones.
- Full Text:
- Date Issued: 1998-05
Draft resolution to the Central Committee, 22-25 June 1995 in defence of our jobs and for job creation
- Congress of South African Trade Unions (COSATU)
- Authors: Congress of South African Trade Unions (COSATU)
- Date: 1998-05
- Subjects: Uncatalogued
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/106145 , vital:32609
- Description: The 6th National Congress delegated to this Central Committee all socio-economic resolutions. The powers of this Central Committee on socio-economic issues is therefore equal to those of the National Congress. This means it can change any socio-economic policy of the federation. Once policy is adopted by the Central Committee it can only be changed by the next National Congress in the year 2000. This document attempts to integrate the resolutions received from affiliates with the other policy positions of the federation as adopted at the previous policy conferences (1992 Economic Policy Conference, 1993 Health and Safety Conference, 1995 Health, Safety and Environment Conference, 1996 Living Wage Conference and May 1997 Policy Conference). In addition we also used the socio-economic section of the September Commission, Secretariat Report to the 6th National Congress and Labour proposals on the Presidential Jobs Summit
- Full Text:
- Date Issued: 1998-05
- Authors: Congress of South African Trade Unions (COSATU)
- Date: 1998-05
- Subjects: Uncatalogued
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/106145 , vital:32609
- Description: The 6th National Congress delegated to this Central Committee all socio-economic resolutions. The powers of this Central Committee on socio-economic issues is therefore equal to those of the National Congress. This means it can change any socio-economic policy of the federation. Once policy is adopted by the Central Committee it can only be changed by the next National Congress in the year 2000. This document attempts to integrate the resolutions received from affiliates with the other policy positions of the federation as adopted at the previous policy conferences (1992 Economic Policy Conference, 1993 Health and Safety Conference, 1995 Health, Safety and Environment Conference, 1996 Living Wage Conference and May 1997 Policy Conference). In addition we also used the socio-economic section of the September Commission, Secretariat Report to the 6th National Congress and Labour proposals on the Presidential Jobs Summit
- Full Text:
- Date Issued: 1998-05
Studies on the Zoarcidae (Teleostei: Perciformes) of the southern hemisphere, VIII: A new species of the genus Dieidolycus from Tierra del Fueg
- Anderson, M Eric, Pequeño R, Germán, J.L.B. Smith Institute of Ichthyology
- Authors: Anderson, M Eric , Pequeño R, Germán , J.L.B. Smith Institute of Ichthyology
- Date: 1998-05
- Subjects: Dieidolycus Anderson, 1988 -- Tierra del Fuego (Argentina and Chile) -- Identification , Zoarcidae -- Tierra del Fuego (Argentina and Chile)
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/70415 , vital:29653 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 61 , A new lower-slope eelpout of the genus Dieidolycus Anderson, 1988 (Family Zoarcidae, Subfamily Lycodinae), is described from a single juvenile female trawled in 2008-2165 m off Tierra del Fuego, Chile. It differs from congeners D. leptodermatus Anderson, 1988 and D. adocetus Anderson, 1994 by its head pore pattern, 10 caudal-fin rays, 18 pectoral-fin rays and longer gill slit.
- Full Text:
- Date Issued: 1998-05
- Authors: Anderson, M Eric , Pequeño R, Germán , J.L.B. Smith Institute of Ichthyology
- Date: 1998-05
- Subjects: Dieidolycus Anderson, 1988 -- Tierra del Fuego (Argentina and Chile) -- Identification , Zoarcidae -- Tierra del Fuego (Argentina and Chile)
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/70415 , vital:29653 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 61 , A new lower-slope eelpout of the genus Dieidolycus Anderson, 1988 (Family Zoarcidae, Subfamily Lycodinae), is described from a single juvenile female trawled in 2008-2165 m off Tierra del Fuego, Chile. It differs from congeners D. leptodermatus Anderson, 1988 and D. adocetus Anderson, 1994 by its head pore pattern, 10 caudal-fin rays, 18 pectoral-fin rays and longer gill slit.
- Full Text:
- Date Issued: 1998-05
The Educational Journal
- Date: 1998-05
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/38099 , vital:34400 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1998-05
- Date: 1998-05
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/38099 , vital:34400 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1998-05
Rhodos, Vol. 10, No. 6
- Date: 1998-04-30
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14943 , http://hdl.handle.net/10962/d1019182
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-04-30
- Date: 1998-04-30
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14943 , http://hdl.handle.net/10962/d1019182
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-04-30
Rhodos, Vol. 10, No. 5
- Date: 1998-04-17
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14942 , http://hdl.handle.net/10962/d1019181
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-04-17
- Date: 1998-04-17
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14942 , http://hdl.handle.net/10962/d1019181
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-04-17
Rhodos, Vol. 10, No. 4
- Date: 1998-04-03
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14941 , http://hdl.handle.net/10962/d1019180
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-04-03
- Date: 1998-04-03
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14941 , http://hdl.handle.net/10962/d1019180
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1998-04-03
Applications of camphor-derived chiral auxiliaries in the asymmetric synthesis of α-amino acids and other systems
- Authors: Matjila, Joseph Moemise
- Date: 1998-04
- Subjects: Uncatalogued
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/191501 , vital:45106
- Description: A viable synthetic route to camphor-derived imino lactones as precursors for the asymmetric synthesis of a-amino acids has been established. Several synthetic strategies have been investigated and the required regioisomeric imino lactones were finally obtained via the step-wise condensation of JV-(carbobenzyloxy)glycine with the a-ketols, 3-exo-hydroxycamphor and 2-exo- hydroxy-3-bomanone. Enolates of the camphor imino lactones, generated using potassium tert- butoxide, were reacted with a range of alkyl halides. Dialkylation was observed using the 2-imino lactone, while the regioisomeric 3-imino lactone derivative gave monoalkylated products with diastereoselectivities, shown by NMR spectroscopy, to range from 43% d.e. for the methylated product to > 99% d.e. for larger alkyl groups. The expected preference for endo-alkylation is supported by NMR (chemical shift, coupling constant and NOE) data and was confirmed by acidic hydrolysis of the pentylated 3-imino lactone to afford the known acid. Computer modelling, with the software package HYPERCHEM®, was used to explore the conformational properties of the alkylated products and their enolate precursors. Exploratory work on the enantiomeric beneficiation of racemic amino acids, using alkylated imino lactone derivatives, revealed preferential exo-protonation of the enolate intermediates. Asymmetric Baylis-Hillman reactions between a novel camphor-derived acrylic ester and a range of aldehydes afforded the corresponding 2-(hydroxyalkyl)acrylates in up to 59% d.e., the observed stereoselectivities being sensitive to both steric and electronic factors. Attempts to prepare imino lactone derivatives from ketopinic acid, although unsuccessful, led to the isolation of two novel W-(carbobenzyloxy)glycinates, whose structures were established by 1- and 2-D NMR spectroscopy. Attempts to prepare "BINAP" analogues from dibomyl ether's also proved unsuccessful, but the investigation led to the discovery of a third, novel dibomyl ether. , Thesis (PhD) -- Faculty of Science, Chemistry, 1998
- Full Text:
- Date Issued: 1998-04
- Authors: Matjila, Joseph Moemise
- Date: 1998-04
- Subjects: Uncatalogued
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/191501 , vital:45106
- Description: A viable synthetic route to camphor-derived imino lactones as precursors for the asymmetric synthesis of a-amino acids has been established. Several synthetic strategies have been investigated and the required regioisomeric imino lactones were finally obtained via the step-wise condensation of JV-(carbobenzyloxy)glycine with the a-ketols, 3-exo-hydroxycamphor and 2-exo- hydroxy-3-bomanone. Enolates of the camphor imino lactones, generated using potassium tert- butoxide, were reacted with a range of alkyl halides. Dialkylation was observed using the 2-imino lactone, while the regioisomeric 3-imino lactone derivative gave monoalkylated products with diastereoselectivities, shown by NMR spectroscopy, to range from 43% d.e. for the methylated product to > 99% d.e. for larger alkyl groups. The expected preference for endo-alkylation is supported by NMR (chemical shift, coupling constant and NOE) data and was confirmed by acidic hydrolysis of the pentylated 3-imino lactone to afford the known acid. Computer modelling, with the software package HYPERCHEM®, was used to explore the conformational properties of the alkylated products and their enolate precursors. Exploratory work on the enantiomeric beneficiation of racemic amino acids, using alkylated imino lactone derivatives, revealed preferential exo-protonation of the enolate intermediates. Asymmetric Baylis-Hillman reactions between a novel camphor-derived acrylic ester and a range of aldehydes afforded the corresponding 2-(hydroxyalkyl)acrylates in up to 59% d.e., the observed stereoselectivities being sensitive to both steric and electronic factors. Attempts to prepare imino lactone derivatives from ketopinic acid, although unsuccessful, led to the isolation of two novel W-(carbobenzyloxy)glycinates, whose structures were established by 1- and 2-D NMR spectroscopy. Attempts to prepare "BINAP" analogues from dibomyl ether's also proved unsuccessful, but the investigation led to the discovery of a third, novel dibomyl ether. , Thesis (PhD) -- Faculty of Science, Chemistry, 1998
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- Date Issued: 1998-04