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Full-Text Articles in Chemistry
Kinetic Studies On The Reaction Of Hydroxyl Radicals With Aromatic Compounds, Paul Chadwick
Kinetic Studies On The Reaction Of Hydroxyl Radicals With Aromatic Compounds, Paul Chadwick
Masters
No abstract provided
Synthesis Of Fluroxypyr For The Use On Broad Leaf Plants, Shena Ruane
Synthesis Of Fluroxypyr For The Use On Broad Leaf Plants, Shena Ruane
Masters
Fluroxypyr, 1-methylheptyl (4-amino-3,5-dichloro-6-fluoro-2-pyridinyloxy) acetate is used for the control of annual broad leaf weeds in cereals and perennial rye grass. The objective of this work was to develop an economically viable process for the bench synthesis of an organic herbicide fluroxypyr and to scale up the reaction to two litres. This was carried out according to a technical bulletin received from Agriguard Ltd. In addition an investigation into the synthesis and characterisation of impurities formed and reported to be formed, in the reaction process was carried out. The process developed began with pentachloropyridine which on reaction with potassium fluoride in …
Synthesis Of The Fungicide Propiconazole A Systemic Foliar Fungicide., Hazel Delaney
Synthesis Of The Fungicide Propiconazole A Systemic Foliar Fungicide., Hazel Delaney
Masters
Propiconazole, 1-[[2-(2,4-dichlorophenyl)-4-propyl-1, 3-dioxol-2-yl[methyl]-1H-1,2,4-triazole, commercially know as “Tilt” is a systemic foliar fungicide for cereals and is widely used in agriculture. The aim of this project was to develop an economically feasible process for the production of propiconazole and to maximise the yields of the intermediates in the developed process. Processes investigated included the original Ciba-Geigy process. In addition an investigation into the synthesis and characterisation of the impurities formed, and reported to be formed in each step of the reaction process was carried out and seven of the reported impurities were synthesised. One impurity was shown not to be present …
Electroanalysis Using Differential Pulse Methods And Stripping Techniques., Enda Howard
Electroanalysis Using Differential Pulse Methods And Stripping Techniques., Enda Howard
Masters
Application of a differential pulse waveform to a microelectrode or a rotating disk electrode results in a peaked response for amperometric redox reactions. Based on these observations models were proposed and tested for these methods. Simulations of the models were carried out by inputting the relevant equations into Microsoft Excel. The microelectrode study revealed a good correlation between one model and the numerical derivative of the current following a linear sweep potential waveform. Experimentally the derivative can be obtained numerically following a linear sweep. The alternative differential pulse waveform requires more sophisticated equipment and the response can be affected by …