Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"epoxidation reactions"”.
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NEW GREEN TECHNOLOGIES FOR ORGANOCATALYTIC ASYMMETRIC EPOXIDATION APPLICATIONS IN SYNTHESIS
… thesis describes the application of asymmetric epoxidation reactions on chromene substrates mediated by Page’s iminium salt catalysts. Organocatalytic asymmetric epoxidation is an efficient tool to access enantiomerically rich epoxides. This study is divided into three main parts which are …
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RECENT ADVANCES IN IMINIUM SALT CATALYSED ASYMMETRIC EPOXIDATION
… current developments in the area of asymmetric epoxidation of alkenes using chiral iminium salt catalysts. The first chapter reviews past and present developments in; catalytic asymmetric epoxidation, and covers the application of this reaction towards the kinetic resolution of racemic olefins. …
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Exploitation of synergy in oxidation catalysis with bimetallic aluminophosphate catalysts
… the high oxime selectivity. Similarly the epoxidation of cyclohexene with the solid oxidant acetylperoxyborate (APB) indicated a significantly higher conversion with the CoIIITiIVAlPO-5 catalyst. The substitution of two metals to replace both aluminium and phosphorus sites clearly …
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Synthesis, Kinetic and Photocatalytic Studies of Porphyrin-Ruthenium-Oxo Complexes
… of important biological and catalytic oxidation reactions. Many transition metal catalysts have been designed to mimic the predominant oxidation catalysts in Nature, namely the cytochrome P450 enzymes. Ruthenium porphyrin complexes have been the center of the research and have successfully been …
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Isolation and characterization of latex-specific promoters from Papaver somniferum L.
… involved in hydroxylation, desaturation and epoxidation reactions, and two of the major latex proteins, MLP146 and MLP149. MLP-like proteins function in fruit ripening in various species that do not have the laticifer cell type. The latex-specific promoters (LSPs) for the three genes were …
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Synthesis and Characterization of immobilized Gold Nanoparticles and Binary Gold Nanoalloys on Cationic Spherical Polyelectrolyte Brushes and their Application as a Catalyst
… catalysts for industrial interesting oxidation reactions of alcohols and epoxidation reactions (Chapter 3.4 and 3.6) were studied. All reactions could be conducted at room temperature and in water as reaction media. The catalytic activities have a strong dependency on the composition in the …
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Computers for chemistry and chemistry for computers: From computational prediction of reaction selectivities to novel molecular wires for electrical devices
… predict selectivities of organic and enzymatic reactions, part II is concerned with the design, the synthesis and the electrical properties of novel, single molecular wires. These single molecule technologies described in part II are likely to contribute to more powerful computer chips in the …
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Synthesis and characterization of rhenium (vii) and rhuthenium (ii) dendritic catalysts: oxidative cleavage and epoxidation of alkenes
… would be catalytically active for oxo-transfer reactions. The synthesis of bidentate (L1), tetradentate (L2-L3), and multidendate ligands (DL1-DL4) of nitrogen was a result of a reaction of primary amine with 2-pyridinecarboxaldehyde. Ligand (L3) is reported herein for the first time. The amines …
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Activating Mn(III)F3 towards homo- and heterogeneous oxidative catalysts
… homogeneous oxidative catalysts for the epoxidation of trans-stilbene using iodosobenzene as the oxygen source. During these catalytic studies it is shown that acetonitrile is the most suitable solvent and the presence of catalysts 1-5 are vital in successful oxidations, giving extremely …