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    Direct synthesis of pterocarpans via aldol condensation 

    Van Aardt, Theunis G. (University of the Free State, 2000-05)
    English: Pterocarpans, representing the second largest group of natural isoflavonoids, have received considerable interest on account of their medicinal properties over the last few years. These phytoalexins not only ...
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    Photochemistry of (+)-catechin and (-)-epicatechin 

    Wilhelm, Anke (University of the Free State, 2008-01)
    Despite the well known fact that photolysis of free phenolic catechins give rise to isomerisation at the C-2 position (e.g. (-)-cis epicatechin converts to the sterically less hindered (-)-trans isomer), researchers have ...
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    Development of new "green" methodology for the synthesis of substituted phenylacetic acid derivatives as precursors to isoflavonoids and related compounds 

    Pieterse, Tanya (University of the Free State, 2013-01)
    English: Flavonoids and isoflavonoids are known to exhibit many important physiological properties and are especially promising candidates for cancer chemoprevention. Similar to most natural products, studies directed at ...
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    Structure and synthesis of a novel homoisoflavanone from Scilla natalensis and synthesis of selected procyanidins through the C-4 functionalization of flavan-3-ols 

    Kuo, Chen-Miao (University of the Free State, 2008-05)
    English: Scilla natalensis planch (Hyacinthaceae), commonly known as Wild squill, Blue squill, Blue hyacinth, Blouberglelie, Blouslangkop, Inguduza, is one of the plants that are widely used in traditional medicines and ...
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    Conformational analysis of oligomeric profisetinidins 

    Potgieter, Eleonora Deborah (University of the Free State, 2007-02)
    English: The profisetinidins are an important class of condensed tannins, or proanthocyanidins. Historically, studies towards the structure and conformation of proanthocyanidins were done on their peracetate and permethyl ...
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    Development of methodology for the synthesis of 4-arylflavan-3-ol lactones 

    Van Tonder, Bernadette (University of the Free State, 2008-05)
    English: The phenolic content of the heartwood of Peltophorum africanum (African wattle) and Burkea africanum (Red syringa) proved to contain a variety of compounds including the novel 4-arylflavan-3-ol lactones, ...
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    Studies directed at the stereoselective synthesis of flavonoids through the hydrogenation of prochiral precursors 

    Van Tonder, Johannes Henning (University of the Free State, 2008-11)
    English: The in vitro studies of biologically active flavonoids are hampered by the inaccessibility of all monomeric units in enantiomerically pure form. Although a number of these scalemic flavonoids can be obtained ...
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    Struktuurondersoek van die isoflavanoïde uit Neorautanenia ficifolia (Benth ex Harv.) C.A. Sm. 

    Rall, Gerhardus Johannes Hendricus (University of the Free State, 1965-01)
    Abstract not available
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    The constitution of oligomeric benzofuranoids 

    Bekker, Riaan (University of the Free State, 1999-05)
    English: Berchemia zeyheri is known for its unique red heartwood, a property that was probably responsible for the first phytochemical investigation into the flavonoid content of this tree. The heartwood contains a unique ...
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    Identification and expression analysis of flavonoid biosynthetic genes in the genus Clivia 

    Snyman, Marius Christian (University of the Free State, 2010)
    English: Anthocyanins belong to a large group of secondary plant metabolites, the flavonoids, and fulfil a range of biological functions that include the cyanic pigmentation they provide to flowers, fruits, vegetables and ...
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    AuthorFourie, Eleanor (2)Kuo, Chen-Miao (2)Achilonu, Matthew Chilaka (1)Bekker, Riaan (1)Brand, D. J. (1)Coetzee, Johan (1)Craven, Pieter (1)Cronje, Annemarie (1)Fourie, Gerald (1)Howell, Hiten (1)... View MoreSubject
    Flavonoids (37)
    Tannins (6)Phenols (5)Dissertation (M.Sc. (Chemistry))--University of the Free State, 2002 (4)Dissertation (M.Sc. (Chemistry))--University of the Free State, 2008 (4)Isoflavonoids (4)Anthocyanidins (3)Leguminosae (3)Plant pigments (3)Antioxidants (2)... View MoreDate Issued2010 - 2018 (4)2000 - 2009 (16)1990 - 1999 (10)1980 - 1989 (4)1970 - 1979 (2)1965 - 1969 (1)Has File(s)Yes (37)

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