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 5 of 5 for “"Bronsted acid catalysis"”.
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Borox catalysis : a new frontier in chiral Bronsted acid catalysis derived from chiral borate anions
… on the development of the new chiral Brønsted acid catalysts, large-scale synthesis, novel reaction methodologies and understanding their mechanisms by experimental/computational analysis. In due course of time, a pool of unprecedented chiral Brønsted acid catalysts known to be "BOROX" …
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Asymmetric synthesis of amines by the catalytic enantioselective additions of hydrazoic acid to ketenes
… of HN3 to a ketene is likely occurring by the Bronsted acid catalysis mechanism. The evidence in support of the Bronsted acid catalysis mechanism include stereochemical and spectroscopic results, which are consistent with data from other additions believed to occur by the Bransted acid …
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Catalytic conversion of biomass-derived molecules into mono- and dicarboxylic acids and esters
… of fuels and chemicals. Mono- and dicarboxylic acids and esters are key intermediates to chemical products, especially for biodegradable polymers. This thesis has addressed the challenges in chemocatalytic synthesis of mono- and dicarboxylic acids and esters, including gluconic acid, succinic …
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Acqua: solvente elettivo in Organocatalisi e Biocatalisi
… to the mechanisms which control organo and bio-catalysis outcome. The first part of the study was focused on the aldol reaction. In particular, for the first time it has been analyzed for the first time the stereoselectivity of the condensation reaction between 3-pyridincarbaldehyde and the …
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Harnessing cheminformatics for catalyst design I. Investigation into a general, asymmetric synthesis of cinchona alkaloid analogs towards asymmetric phase transfer II. Development of an enantioselective brønsted acid catalyzed four-component Ugi reaction
… reaction. Second, (R)-BINOL derived phosphoric acids were studied in regards to the brønsted acid catalyzed Ugi reaction. In regards to Cinchona alkaloids, the concentration was first on methodology develop to rapidly synthesize diverse Cinchona-like analogs in a highly enantioenriched fashion. …