Search
Now showing items 1-6 of 6
Development of new "green" methodology for the synthesis of substituted phenylacetic acid derivatives as precursors to isoflavonoids and related compounds
(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 ...
Parameters influencing regioselectivity in the palladium catalysed carbonylation of stilbenes and related alkenes
(University of the Free State, 2013-01)
English: Flavonoids are polyphenolic naturally occurring compounds with a wide variety of biological and physiological activities, like anti-platelet, anti-inflammatory, antioxidant, antiviral, antiallergenic, and antitumor ...
Catalytic oxidation processes using functionalised 0,0'-bidentate ligand copper complexes
(University of the Free State, 2013-12)
The aim of this study was to imitate the activity and behaviour of the enzyme catechol oxidase by employing simple copper nano molecular materials, and to investigate electronic and steric effects on this ...
A crystallographic and mechanistic investigation of manganese(i) tricarbonyl complexes
(University of the Free State, 2013-11)
Manganese has largely been used as a catalyst in epoxidation of olefins and the selective oxidation of unactivated C-H bonds in alkanes. Another major use of manganese is in water oxidizing catalysis, where manganese ...
Niobium and tantalum beneficiation from tantalite ore
(University of the Free State, 2013-06)
English: Tantalum and niobium occur in nature in the form of minerals such as tantalite and
columbite. Recent advances in technology have increased the demand for these
elements and their chemical compounds. Tantalum is ...
Development and assessment of metal containing drugs as model radiopharmaceuticals for cancer treatment
(University of the Free State, 2013-01)
English: This research focuses on the development of new teatradentate carboxamide ligands and their coordination to gallium(III) and gold(III). The solid state characteristics and reactivity studies in solution of these ...